The Ice Age First Nations in the interior of Alaska relied more heavily on salmon and freshwater fish in their diets than previously thought, according to a new study from the University of Alaska Fairbanks.
First Nations of the Pacific Coast have always recognized the value of the salmon. Archaeologists have used new techniques to date the remains of salmon found in hearths back more than 11,000 years. The results now offer a more complex picture of Alaska’s ice age residents, who were previously thought to have a diet dominated by terrestrial mammals such as mammoths, bison and elk.
A team of researchers made the discovery after taking samples from 17 prehistoric hearths along the Tanana River, then analyzed stable isotopes and lipid residues to identify fish remains at multiple locations.
The project also found the earliest evidence of human use of anadromous salmon in the Americas, dating back at least 11,800 years.
Chum salmon (DFO)
The results of the study were published today in the Proceedings of the National Academy of Sciences.
DNA analysis of chum salmon bones from the same site on the Tanana River had previously confirmed that fish were part of the local indigenous diet as far back as 11,500 years ago. But fragile fish bones rarely survive for scientists to analyze, so the team used sophisticated geochemistry analyses to estimate the amount of salmon, freshwater and terrestrial resources ancient people ate.
A team led by UAF postdoctoral researcher Kyungcheol Choy analyzed stable isotopes and lipid residues, searching for signatures specific to anadromous fish. The effort demonstrated that dietary practices of hunter-gatherers could be recorded at sites where animal remains hadn’t been preserved.
“It’s quite new in the archaeology field,” Choy said. “There’s a lot in these mixtures that’s hard to detect in other ways.”
Ben Potter, a professor of anthropology at UAF and co-author of the study, said the findings suggest a more systematic use of salmon than DNA testing alone could confirm.
“This is a different kind of strategy,” Potter said. “It fleshes out our understanding of these people in a way that we didn’t have before.”
The study required cooperation between UAF’s Department of Anthropology and the Institute of Northern Engineering’s Alaska Stable Isotope Facility to locate and interpret the presence of salmon remains at the sites. Potter said the process could be a template for how a diverse team of researchers can work together to overcome a scientific obstacle.
“It’s an awesome look at how we can merge disciplines to answer a question,” he said.
That’s one of the predictions from a new study from the University of British Columbia, looking at the future of the fishery on the coast.
The study concentrates on the First Nations fishery and warns that aboriginal people could face a catastrophic decline in the harvest of traditional species, especially salmon and herring roe on kelp over the next thirty years, a decline that will also have an equally devastating effect on commercial and recreational fishing.
The main cause of the decline is climate change and the warming of the coastal waters. The study projected “modest to severe declines in catch potential” for all current commercial fisheries along the coast.
The study says that for the First Nations the between $28 million to $36 million in revenue they got from fishing between 2001 and 2010 could fall by up to 90 per cent depending on how the climate changes.
A chart from the UBC study shows possible decline in fish species under different climate scenarios. (PLOS1)
One scenario calls for a decline of up to 40 per cent in chinook and pink salmon.
If there is any good news, if you can call it that, the decline will be not as bad in northern coastal waters as it will be the warmer waters near the Lower Mainland and southern Vancouver Island. The range of some species, including salmon, herring, halibut and possibly oolichan will move to farther north along the BC Coast and into Alaskan waters.
That means in time the warming waters will also encourage an increase in other species, including sardines and some clams.
The changing oceans mean that “an increase in the relative abundance of warmer-water species was projected to lead to new or increased opportunities for commercial harvests by 2050.”
The study is urging the First Nations and other stakeholders in the British Columbia fishery to start long term planning immediately to anticipate changes in the coming decades.
The team of scientists led by Lauren Weatherdon, a graduate student at UBC, noted that while previous studies have looked at the impact of climate change on large-scale commercial fisheries, “few efforts have been made to quantitatively project impacts on small-scale subsistence and commercial fisheries that are economically, socially and culturally important to many coastal communities.”
The study was conducted in cooperation with the BC First Nations Fisheries Council and looked its seven coastal administrative regions “forming a sample of groups with diverse marine resources, geographical locations, territorial sizes, and treaty statuses.”
Within those regions 16 First Nations participated in the study, some under their treaty councils, including the Council of the Haida Nation, the Tsimshian Nations Treaty Society (including the Gitga’at at Hartley Bay and the Kitselas and Kitsumkalum near Terrace) and the Maa-nulth First Nations. The Heiltsuk First Nation at Bella Bella participated as an independent group.
The FNFC’s administrative regions intersect with five distinct ecological regions: the North Coast, comprising the Hecate Strait and Dixon Entrance; Haida Gwaii, which includes the waters surrounding the islands; the Central Coast, including Queen Charlotte Sound, Queen Charlotte Strait, and the southern tip of Hecate Strait; the Strait of Georgia; and the west coast of Vancouver Island (WCVI) .
The study says First Nations are likely to be exposed to different climate-related impacts on fisheries due to the differing ecological and biogeographical characteristics of these regions and to differing traditional and commercial harvests.
The study used a “dynamic bioclimate envelope” computer model to look at the changes to the distribution and relative abundances of the BC coastal species under two climate change scenarios, a high greenhouse gas model where society can’t curb emissions and a low greenhouse gas emission scenarios, depending on how society is able to curb the increase.
The study looked at ocean properties—including sea surface temperature, sea bottom temperature, salinity, oxygen concentration, surface action, and net primary production—using data from the US National Ocean and Atmospheric Administrations’ climate-related earth system model.
Climate change will mean that current species on the BC coast will “shift polewards.”
The study showed that by 2050, there could be declines in 87 of the 98 species in the study.
Greater losses in what the study calls “species richness” is likely to occur towards the southern coast of British Columbia, falling primarily between 48°N and 51°N. But, overall, species richness along coastal BC will continue—only with different species.
Most significantly the study projects a decline in the overall salmon catch from 17.1 per cent to 29.2 per cent, depending on the region and climate.
All aspects of the herring fishery, including roe herring, spawn-on-kelp, and the food and bait fishery could decline between 28.1 per cent and 49.2 per cent depending on the region.
The future of the oolichan is the most uncertain. One of the models studied projected a further 37.1 per cent decline in the oolichan, while other models called for for a decline between 5 per cent and 6.8 per cent. That will depend on how well, the oolichan already threatened in most regions of British Columbia are able to adapt to warmer waters or find a way to move their range northward.
The study says white sturgeon and Pacific sardines were projected to increase in abundance under both climate change scenarios, while manila clams were projected to increase in abundance by 14.5 per cent in one of the models. The eight remaining species showed little change.
The study suggests that the southern territories (Tsawwassen, Tla’amin, and Maa-nulth First Nations) will likely see a reduction in catch potential between -15.2 per cent and -27.8 per cent depending on how the climate changes.
On the north coast. The Haida and Tsimshian First Nations and those situated along the central or north-eastern coasts of Vancouver Island (Heiltsuk and ‘Namgis First Nations) would likely see smaller reductions in relative catch for each territory, with estimates falling between -3.2 per cent and -8.2 per cent.
The study shows that for the First Nations along the North and Central Coasts of British Columbia (Gitga’at and Haida, and Heiltsuk and ‘Namgis) there will be neutral or positive shifts in catch potential for white sturgeon, kelp greenling, and two species of perch under both scenarios.
While varying regionally, both scenarios also suggested either a slight cumulative decline or negligible change in catch potential for clams, rockfish, lingcod, and sculpins across the North and Central Coast.
One potential problem the study suggests is that fishers in southern British Columbia may, in the future, try to move north to follow the harvest, leading to potential conflicts. The cost of travel, may, however, discourage that.
One of the recommendations from the study is that First Nations revive the traditional clam gardens.
Traditional clam beds serve as an ideal example of a method that could be applied to offset climatic impacts through internalized mechanisms, using local cultivation to generate increased productivity by enhancing native habitat rather than redirecting extraction efforts towards other regions or species. Clam gardens constructed in a manner akin to those situated near ancient settlements of the Northern Coast Salish and Laich-kwil-tach First Nations have been found to generate higher clam densities, biomass, and growth rates than non-walled beaches . These benefits were observed for Pacific littleneck clams and butter clams , two clams that are of cultural, economic, and ecological importance to the region Reinstating clam beds in First Nations’ territorial lands has been suggested as a means of simultaneously achieving local conservation and cultural objectives and may thereby provide a politically and ecologically viable option for mitigating climate-related impacts.
The most important recommendation is that the First Nations and other stakeholders start cooperating immediately to offset how the changing climate with affect the fishery:
Management of salmon and herring stocks has been highly contentious due to the myriad of stakeholders who depend upon them, which include First Nations, recreational fisheries, and commercial fisheries….
Aside from fulfilling societal needs, salmon serve as key ecological components of the Pacific Northwest Coast, functioning as the mechanisms by which nutrients are transferred from the ocean to freshwater and terrestrial ecosystems
It says the projections show that a “redistribution of fishing effort” will not “fully offset declines in salmon and herring”
attaining a state of collaboration between First Nations, DFO, and other sectors has the potential to yield beneficial ecological and political results, if implemented correctly. Parallels exist between First Nations’ traditional fisheries management approaches and “modern” approaches (e.g., spatial management, mariculture, selective fishing, fishing closures), with differences arising primarily due to diverging worldviews.
It recommends local application of First Nations’ traditional management strategies to “provide opportunities to collaboratively engage in adaptive ecosystem-based management and to coordinate efforts to attain conservation objectives.”
They give an example of how the Nisga’a Nation have ensured their equal partnership in management by employing traditional fish wheel technology to monitor and assess stocks and by leveraging traditional ecosystem-based management practices that could be applied to plan long-term objectives and management approaches.
It concludes by saying that joint-management will not only work to reduce the impact of climate change but also head off potential conflict.
Through such joint-management regimes, traditional fisheries management strategies could be applied to advance localized research directives and to reduce impacts on stocks under unprecedented environmental change. Moreover, the risk of conflict over declining resources underlines the need to establish common and equitable ground to ensure successful joint management of fisheries, and to leverage collective expertise.
Chart from the study showing which fish species will move north up the coast as the climate changes. (PLOS1)
“Very low levels” of crude oil from the 1989 Exxon Valdez spill in Prince William Sound, Alaska, are a threat to the survival of herring and pink salmon that spawn in the region, according to a study released today by the US National Oceanic and Atmospheric Administration.
The study shows that embryonic salmon and herring exposed to very low levels of crude oil can develop hidden heart defects that compromise their later survival.
That means that the Exxon Valdez spill on March 24, 1989 may have had much greater impacts on spawning fish than previously recognized, according to the study published in Nature’s online journal Scientific ReportsVery low embyronic crude oil exposures cause lasting defects in salmon and herring.
“These juvenile fish on the outside look completely normal, but their hearts are not functioning properly and that translates directly into reduced swimming ability and reduced survival,” said John Incardona, a research toxicologist at NOAA Fisheries’ Northwest Fisheries Science Center (NWFSC) in Seattle. “In terms of impacts to shore-spawning fish, the oil spill likely had a much bigger footprint than anyone realized.”
This is a juvenile pink salmon exposed to low levels of crude oil as an embryo. While these fish appear outwardly normal, they nevertheless developed heart defects that compromised their ability to swim. Fish that are less able to forage and avoid predators are much less likely to survive to adulthood. (NOAA)
Previous research has shown that crude oil disrupts the contraction of the fish heart muscle cells. Embryonic fish exposed to trace levels of crude oil grow into juveniles with abnormal hearts and reduced cardiorespiratory function.
“With this very early impact on the heart, you end up with an animal that just can’t pump blood through its body as well, which means it can’t swim as well to capture food, form schools, or migrate,” said Mark Carls, toxicologist at the Alaska Fisheries Science Center. “Crude oil is changing basic physiology, or what makes a fish a fish.”
The research builds on earlier work by the Auke Bay Laboratories, part of NOAA Fisheries’ Alaska Fisheries Science Center, which found much reduced survival of pink salmon exposed as embryos to polycyclic aromatic hydrocarbons (PAH) from crude oil.
“Our findings are changing the picture in terms of assessing the risk and the potential impacts of oil spills,” said Nat Scholz, leader of the NWFSC’s ecotoxicology program and a coauthor of the new study. “We now know the developing fish heart is exquisitely sensitive to crude oil toxicity, and that subtle changes in heart formation can have delayed but important consequences for first-year survival, which in turn determines the long-term abundance of wild fish populations.”
The Exxon Valdez aground on Bligh Reef in Prince William Sound in March 1989. (NOAA)
The Exxon Valdez spill was the largest in U.S. history, with extensive oiling of shoreline spawning habitats for Pacific herring and pink salmon, the two most important commercial fish species in Prince William Sound.
Herring larvae sampled in proximity to oil were visibly abnormal, and mortality rates were higher for pink salmon embryos at oil spill sites than unaffected regions.
The herring fishery collapsed three to four years after the spill, when the herring spawned in oiled areas reached reproductive maturity.
The paper notes that the contribution of the spill to the herring population collapse, if any, was never determined and remains controversial.
Other studies, however, tend to confirm the findings, including heart problems for fish exposed to the Gulf of Mexico Deepwater Horizon spill and even fish exposed to naturally occurring oil seeps.
The new findings suggest that the delayed effects of the spill may have been important contributors to the declines.
This image shows transient embryonic exposures to crude oil cause lasting reductions in the swimming speed of salmon and herring, months after additional juvenile growth in clean seawater. (NOAA)
Scientists from the Northwest Fisheries Science Center and Alaska Fisheries Science Center temporarily exposed embryonic salmon and herring to low levels of crude oil from the North Slope of Alaska and found that both absorbed chemicals at similar concentrations in their tissues. The embryos were then transferred to clean seawater and raised as juvenile fish for seven to eight months.
Few of the exposed embryos were outwardly abnormal in any way. However, closer examination of the fish revealed subtle defects that could reduce their long-term survival.
Juvenile salmon exposed to oil grew more slowly, with those exposed to the highest concentrations growing the slowest. For salmon, early survival in the ocean is strongly influenced by juvenile growth, with smaller fish suffering higher loss to predators.
Scientists used swimming speed as a measure of cardiorespiratory performance and found that fish exposed to the highest concentrations of oil swam the slowest. Slower swimming is an indication of reduced aerobic capacity and cardiac output, and likely makes fish easier targets for predators.
Exposure to oil as embryos altered the structural development of the hearts of juvenile fish, potentially reducing their fitness and swimming ability. Poor swimming and cardiac fitness is also a factor in disease resistance.
Earlier studies on the ecosystem-scale crash of the Prince William Sound herring population several years after the Exxon Valdez spill were based on higher levels of exposure to the oil. The new study shows that that cardiac injury occurs in normal-appearing fish that survive even lower level exposures.
The scientists reviewed data on measured oil concentrations in surface water samples collected in Prince William Sound after the oil spill and during the 1989 herring spawning season. Most of the 233 samples contained less oil than was believed to be toxic to herring at the time, based on visible gross developmental abnormalities. However, nearly all of the samples contained oil at or above concentrations shown in the new study to alter heart development.
If the Exxon Valdez spill impacted heart development among a large majority of fish that were spawned in proximity to oiled shorelines, the subsequent losses of juveniles to delayed mortality would have left fewer adults to join the population. Although not direct proof, this provides a plausible explanation for the collapse of the Prince William Sound herring stock four years later, when fish spawned during the oil spill would have matured.
The study concludes that the impacts of the Exxon Valdez spill on near shore spawning populations of fish are likely to have been considerably underestimated in terms of both the geographic extent of affected habitat and the lingering toxicity of low levels of oil. The findings will likely contribute to more accurate assessments of the impacts of future oil spills, Incardona said. “Now we have a much better idea of what we should be looking for,” he said.
That means, according to the study “that the impacts of the Exxon Valdez oil spill on populations of near shore spawning fish are likely to have been considerably underestimated, in term of both the geographic extent of affected habitats and the lingering toxicity of low levels of residual oil.”
The report calls for more studies of the sensitivity of the developing fish heart since the vulnerability “also has implications for other pollution sources in marine ecosystems, including increasing maritime vessel traffic and expanding land-based urban runoff.”
Scientific studies after the Exxon Valdez spill indicated that the vast majority of species recovered following the spill and that functioning ecosystems, similar to those existing pre-spill, were established.
Species for which recovery is not fully apparent, such as Pacific herring, killer whales, and pigeon guillemots, appear to have been affected by other environmental factors or human influences not associated with the oil spill. Insufficient pre-spill baseline data on these species contributed to difficulties in determining the extent of spill effects.
Based on the evidence, the Panel finds that natural recovery of the aquatic environment after an oil spill is likely to be the primary recovery mechanism, particularly for marine spills. Both freshwater and marine ecosystem recovery is further mitigated where cleanup is possible, effective, and beneficial to the environment.
Natural processes that degrade oil would begin immediately following a spill. Although residual oil could remain buried in sediments for years, the Panel finds that toxicity associated with that oil would decline over time and would not cause widespread, long-term impacts.
Haisla Nation Chief Counsellor spoke at Mt. Elizabeth Theatre on June 9, 2015, introducing David Suzuki who was on a speaking tour. This is a lightly edited report on his remarks that outline some of the dilemmas facing the Haisla and the Kitimat valley in an age that needs development but faces climate change.
Good evening.
Among chiefs, I am elected, not hereditary, you are born into that position, I wasn’t born into it.
I am basically a regular commoner just like you guys with a high school education and one year of college and a lot of experience outside my community that I bring back.
These topics about climate change locally, provincially, nationally and worldwide, they’re complicated topics.
Haisla Chief Counsellor Ellis Ross speaks at Mt. Elizabeth Theatre, June 9, 2015 (Robin Rowland/Northwest Coast Energy News)
There’s no one true fix for all of it. The problem is that the Haisla have been thrust into the middle of it and we have to answer it, which is very unfair.
So when we’re talking about what really is a Haisla value, a west coast, a British Columbia value. I must tell you I value the Haisla people, my people, that land, the territory, I think about the Haisla people because I don’t think anyone has given the Haisla people a priority in the last 40 to 50 years.
All the decisions that were made about Haisla territory, that affected out people, were made without us.
The result was that we ended up with 80 per cent unemployment, historically over the last 40 years we have ended up with cancer and we can’t get rid of it.
Poverty, people couldn’t get enough money to fix their bathrooms when the floor was rotting out.
The saying is that you can always tell when the reserve starts is when the pavement ends is true. Unless there’s a political agenda to actually pave the road to the village. The environmental questions that have been raised over the past ten years are not new to the Haisla.
In the 70s it was the Haisla alone who tried to battle emissions when nobody even knew what emissions meant. They tried to stop the effluent dumping into the river that killed off the river they tried to stop the diking of the river so parts of the land could be protected, parks.
When the Haisla knew that the oolichan that was estimated to be hundreds of thousands of tons, were dying off quickly in the span of five years. Nobody listened.
Now the DFO and Canada is realizing that the demise of the oolichan is a signal that something is wrong with the ecosystem.
I would love that someone would come around to the idea of thanking the Haisla people for all the work that they did and went and unheard even in meetings like this today.
And we’re not even talking about salmon.
In all this time, I’ve read all the documents, all the speeches and listened to all the promises of a better tomorrow for all the people but nobody delivered it.
Countless academic papers have been written about Indian poverty.
Nothing was done.
Non-profit organizations used the Haisla to further their cause and left town when they had achieved what they had achieved.
At the same time all the decisions continued to be made without us. And everybody benefited except us.
What happened in the end and the corporations made their billions and made enough money to pay off the mortgage and move down south, the Haisla were left with the mess to clean up. Today we’re still battling to get some of these sites cleaned up and we’re still not getting help.
I don’t blame anyone for this. Whether you’re am environmental organization, a government or a corporation or a non-profit organization, I don’t blame you for this because you have a mandate, you have a special interest. That’s what you’re trying to achieve.
I have a mandate. I do have an organization now that is fully equipped to look at every single permit that comes from the provincial government and the federal government and try to mitigate it given our capacity and our lack of funding.
But some of that benefit has to flow to the Haisla people. It’s our territory.
When you think about what has happened to us, the Haisla, we think about residential schools and I’ve been reading the debate on whether or not it’s genocide or not and I think people are missing the point.
Residential schools were only 10 per cent of a larger program to get rid of the Indian.
The ninety per cent was what was stolen from us as well. The land was taken away and we were put on a chunk of land across the Channel, that was described by the Indian Agent as worthless, it’s not even good for agriculture so give it to the Indians. We had to get permission from the federal government to leave that reserve. We had to get a piece of paper that said he’s allowed to leave the reserve and go pick berries.
We also have had no help other than some academic programs and some sort of study to deal with our suicides. I’m not just talking Haisla here. I really thought that one suicide every five years was really a bad thing. But finding out that my neighbors down the road from here to Prince George are dealing with ten suicides in the first quarter of this year.
It breaks my heart.
Who is responsible for that? If it’s not the government, if it’s not the non-profits, if it’s not corporations, who is it?
I stepped up and said I’ll take full responsibility for this but that means I have a hard message to deliver and I will deliver it on behalf of the Haisla people.
When it comes to climate change, we are living at a very unfortunate time, because finally we’re accepted at the provincial table, at the federal table, the corporate table.
We’re being included but unfortunately, we have to look at climate change as well. It’s a very tough position to be in when you’ve got a Grade 12 education from 1984 and one year of college education in 1985.
It’s a very tough topic, I can tell you. I’ve been to China, I’ve been to Korea and no matter what you say about the emissions there, Canada and BC have no problems with emissions here until you visit China.
They’re not going to get off crude oil, they’re not going to get off diesel fuel, they’re not going to give up coal because a billion people there want the same standard of living that you have in Canada. And I’m talking about India as well. They want the same standard. They want good houses; they want to own a car. They are not going to stop their thirst for energy.
I don’t have the answers.
I still believe that natural gas is a lot cleaner than coal and even if you put a small dent in it, it’s not enough to get these guys off nuclear power.
And the solar power you’re talking about, they do it for show but that’s not going to meet the energy needs of China. We’re not even talking about India; we’re not even talking about Korea.
You say can you help get China off dirty fuel, but all their pollution keeps getting dumped on South Korea.
I represent 1700 people, how am I going to do that?
We’re being asked to do a near impossible task while I’m trying to dig my people out of poverty. At the same time, when we get this opportunity we’re giving our members very mixed messages, including our young people which is heart breaking for me.
Because we’re telling them get an education, don’t be a burden on society, get a job, but by the way there are no jobs here, there’s no way to get into existing industries so you better go to the oil fields of Alberta to get a job. A lot of our people head over there or to Vancouver.
I’ve been following this debate on climate change for quite a while now, for over six years. I’ve been listening to everybody, I’ve been listening to corporations, being listening to governments, been listening to non-profits, but on behalf of the Haisla Nation Council, I’m here to tell you, that when it comes to the future of the Haisla I have very little patience with this. I don’t want to see another essay about what to do about Indian suicides.
I believe that our people are being sick and tired of being left out and left behind, while everyone else is moving on with their lives. I do want to what’s best for the region I do want to do what’s best for the province and Canada and the world. But I will not do it at the expense of the Haisla people. We’ve been at the dirty end of the tick for the last 40 years. It’s going to stop. Thank you very much and enjoy your evening.
There’s a dumb, dumb, really dumb idea that just won’t go away—that Enbridge could solve all its problems if only, if only, it would send the Northern Gateway Pipeline to Prince Rupert.
Enbridge long ago rejected the idea. Before Enbridge updated its website to make Gateway Facts, to make it slick and more attractive, the old website had an FAQ where Enbridge explained why it wasn’t going to Prince Rupert.
Did you consider running the pipeline to Prince Rupert where a major port already exists?
We considered Prince Rupert and Kitimat as possible locations. We carried out a feasibility study that took into account a number of considerations. The study found that the routes to Prince Rupert were too steep to safely run the pipeline, and that Kitimat was the best and safest option available.
Current proposed route for the Northern Gateway pipeline. (Enbridge)
Here in the northwest even the supporters of the Northern Gateway roll their eyes when they hear the old Prince Rupert story come up again and again – and it’s not just because these people support the Kitimat plans for Northern Gateway, it’s because those supporters (not to mention the opponents) have driven along the Skeena from Terrace to Prince Rupert.
There just isn’t any room for a pipeline. It’s a game of centimetres.
A rainbow hugs the mountains near the Telegraph Point rest area on the Skeena River between Terrace and Prince Rupert, Sept. 29, 2014. Traffic is seen on the narrow corridor between the mountains and the river (Robin Rowland/Northwest Coast Energy News)
Alternatives to Kitimat?
Now the new premier of Alberta, Jim Prentice, who should know better if he’s going to lead that province, is hinting that Kitimat isn’t the only possible solution for the Northern Gateway.
Without specifying Prince Rupert, according to Gary Mason reporting in The Globe and Mail, Prentice was speculating about an alternative to Kitimat.
Asked whether he believes the Gateway terminus should be relocated to Prince Rupert or another destination, Mr. Prentice said, “Everything I’ve heard from the Haisla who live there is they don’t agree with the terminal being in Kitimat.” Is it possible to get First Nations approval if there is no support at the planned terminus site? “It’s pretty tough,” the Premier said.
Prince Rupert has a thriving local fishing industry that employs hundreds of people and is critically important to the local First Nations. He is convinced the community would not be willing to put that at risk.
“Overwhelmingly people in my community are much more comfortable with liquefied natural gas, with wood pellets, with coal, than any oil product,” he said.
The Prince Rupert Port Authority also rejected the idea
A spokesman for the Prince Rupert Port Authority said Wednesday there is currently no room for Enbridge to build at the port even if it wanted to. “We are fully subscribed,” Michael Gurney said. There are two large vacant lots within the port authority’s jurisdiction, but both are locked by other energy companies, earmarked for LNG projects.
So not only is there no room on the road to Prince Rupert, there is no room in Prince Rupert.
Shovel-ready?
Let’s just consider for a moment that if Prince Rupert was the ideal location for the Northern Gateway terminal (which it is not), what would be needed to get the project going today.
The Northern Gateway Joint Review Panel would have be reconstituted or a new JRP created by the National Energy Board. That’s because the bitumen comes from Bruderheim, Alberta, crossing provincial boundaries and thus it’s in federal jurisdiction.
Even under the fast track rules imposed on the NEB by Stephen Harper’s Conservative government, new environmental and social impact studies would be required, starting from scratch. So add another five years of paperwork before a single shovel goes into the ground.
The pipeline would have to cross the traditional territory of First Nations that, so far, have not been part of the negotiations, mostly the Tsimshian First Nation as well as the Nisga’a First Nation which has a treaty establishing local rule over their territory.
Traditional leaders of the Gitga’at First Nation lead a protest march through the streets of Prince Rupert, February 4, 2012. (Robin Rowland/Northwest Coast Energy News)
In February 2012, the largest anti-Enbridge demonstration outside of the Lower Mainland took place in Prince Rupert, with the elders of the Tsimshian First Nation welcoming the elders and members of the Gitga’at First Nation, at Hartley Bay, which had organized the protest.
When I say there isn’t room for a pipeline along the Skeena, it also means that there isn’t any room for the pipeline corridor right-of-way. Enbridge, in its submissions to the Joint Review Panel, said it requires a 25 metre wide right of way for the pipeline corridor. (For the record that’s just over 82 feet).
Along that highway, as you will see, there’s barely enough room for the CN mainline and Highway 16 (also known as the Yellowhead Highway) and on a lot of places both the highway and the railway roadbed are built on fill along the side of a cliff.
Albertans’ desperate desire to see the Northern Gateway go to anywhere to what they call “tide water” keeps coming up like the proverbial bad penny. The latest came when Jim Prentice speculated about a new route for the Northern Gateway.
I knew I had an appointment coming up in Prince Rupert on Monday, September 29. So I decided that only way to prove to people sitting in Calgary, Edmonton and Fort McMurray playing with Google Maps that the pipeline to Prince Rupert was a really dumb idea was to shoot photographs to show just why the Northern Gateway will never go to Prince Rupert—at least along the Skeena.
As you drive out of Terrace, you pass two large swing gates (also called by some “Checkpoint Charlie” gates after the Cold War era crossing in Berlin.) At the first rest stop west of Terrace, there are another set of gates at the Exstew. There’s a third set of gates just outside Prince Rupert.
A logging truck passes the avalanche gates at Exstew on Highway 16, Sept. 29, 2014. (Robin Rowland)
The swing gates are avalanche gates and, in the winter, Highway 16 can be shut down if an avalanche closes the highway or the danger from avalanche is too great to allow motorists to proceed. When you drive the highway from Terrace to Prince Rupert in the winter (the signs were covered up when I drove Monday) you are warned “Avalanche danger Next 13 kilometres. No stopping.”
The Exstew avalanche gates, (Robin Rowland/Northwest Coast Energy News)
The drive along the Skeena from just west of Exchamsiks River Provincial Park all the way to Tyee where the highway turns inland to reach northwest to Prince Rupert on Kaien Island is one of the most spectacular drives on this planet. The highway snakes along a narrow strip of land with steep mountain cliffs on one side and the vast river on the other.
The problem is that apart from locals and tourists, none of the “experts” whether journalist, think tanker, bureaucrat or politician have, apparently ever driven from Prince Rupert to Terrace.
When both Opposition Leader Tom Mulcair and Liberal Leader Justin Trudeau were in the northwest earlier this summer to “engage” with the local people, apart from short boat trips down Douglas Channel, they flew everywhere. Scheduling you know. Stephen Harper has never visited northwest BC and probably never intends to. His cabinet members fly in for photo ops and then are on the next plane out of town.
Of all the visiting journalists who have come to the northwest only a couple have bothered to drive around the region. Most fly-in fly-out. These days, most often budget-strapped reporters never leave their offices, interviewing the same usual suspects by phone on every story.
On Monday, I took most of the photographs on my way back from Prince Rupert to Terrace after my appointment, so the sequence is from west to east. There are also very few places along the river where you can safely stop. There are concrete barricades on both sides of the highway to prevent vehicles either going into the river or onto the narrow CN right-of-way.
There are, however, two rest stops and a number of small turnoffs on the highway, the turnoffs mainly intended for use by BC Highways, but which are also used by tourists, fishers and photographers.
The first image was taken at one of those highway turnoffs just east of Aberdeen Creek. This is what the highway and rail corridor are like all along the Skeena, the highway, bounded by concrete barricades, the CN rail line and then the towering mountains. Note where the telegraph and telephone lines are—further up the cliffside.
A closer view of the highway and rail corridor just east of Aberdeen Creek.
Here is the view of the Skeena River from the Aberdeen Creek turnoff. You can see to the east, a mountain and the narrow strip of fill land that supports the highway and the rail line.
You see the broad width of the mighty Skeena, the Misty River, as it is called by the Tsimshian First Nation and by everyone else who lives in the northwest and on the right side of the image, the highway and rail corridor built on fill.
Any room for a pipeline?
There’s another turnoff on the other side of the headland east of Aberdeen Creek, looking back the way we came.
The final small turnoff is just by the Kylex River. Again you can see how narrow the highway and rail corridor are.
A few kilometres further along—as I said the highway snakes and curves its way along the riverbank– you come to the Basalt Creek rest area. So this telephoto image shows a logging truck heading west, taken from Basalt Creek, looking back at the highway.
Again you can see both the highway and CN line are built on fill. Is there any room for a pipeline?
Any room for a 25 metre pipeline right-of-way?
Between Basalt Creek and Telegraph Point, a few kilometres to the east, again the highway and rail line hug the narrow strip between the river and mountains.
This shot, taken from Telegraph Point, in October 2013, shows a CN intermodal container train heading to Prince Rupert. The container trains and the coal trains usually have between 150 and 180 cars. If a winter avalanche took out a train, there would be environmental damage, but that damage would be insignificant from coal or containers compared to a train of railbit tankers carrying diluted bitumen.
At Telegraph Point, the second of the three rest stops between Prince Rupert and Terrace, again there is just a narrow strip between the mountain, the highway and the river.
Across the highway from the rest stop, you can again see the narrow corridor, the first shot looking west the rail line close to the cliff face, the second, east, with the waterfall, which you don’t see during the rest of the year, fed by the fall monsoon.
Two shots from the same location, Telegraph Point, taken in March, 2013, of a CN locomotive hauling empty coal cars back to the fields around Tumbler Ridge. (No waterfall in March)
Alternative routes
Everyone has assumed that if Northern Gateway changed its route, the most likely choice given the configuration of the pipeline at the moment is to follow the Skeena.
There are alternatives. The Petronas LNG project and its partner TransCanada Pipelines have proposed a more northern cross-country route, which would go north from the Hazeltons, avoiding the Skeena
If Enbridge wanted to try a northern route, similar to the one TransCanada contemplates for Petronas, Northern Gateway would again run into trouble.
It would require reopening or creating a new Joint Review Panel, many more years of environmental and social impact studies of the route, even under Stephen Harper’s fast track system. The TransCanada/Petronas pipeline would also cross the traditional territory of the Gitxsan First Nation and if Enbridge tried that the company would have to deal with the fact that it signed a controversial agreement with Elmer Derrick that was immediately repudiated by most members of the Gitxsan First Nation and eventually dropped by Enbridge.
So why does this idea of a pipeline to Prince Rupert keep coming up?
In most cases, the idea of the pipeline to Prince Rupert is always proposed by Albertans, not from any credible source in British Columbia, or the suggestions come from desk bound analysts in Toronto and Ottawa both in think tanks and in the newsrooms of dying newspapers who have never seen the Skeena River apart from a tiny handful who have looked at Google Street View
(Yes you can Google Street View Highway 16 along the Skeena, I recommend it if you can’t do the drive)
Perhaps the worst example of this failure of both analysis and journalism came in the Edmonton Journal on July 7,2014, when it published a piece by Bob Russell, entitled Opinion: Make Prince Rupert the terminus, which went over the same old inaccurate arguments.
The overland route currently proposed by Enbridge is fraught with environmental issues because it goes over coastal mountains and streams before entering Kitimat’s port. This port will also be the base of perhaps as many as four liquefied natural gas terminals, which will result in the channel always busy with LNG ships outbound and returning from many Asian ports.
There are existing rights of way for the major highway, the Yellowhead, and CN Rail line from Edmonton to the Port of Prince Rupert, so this eliminates the issue of transgressing First Nations lands. The technical issues of narrow passages can be overcome with engineering. In fact, the pipeline can be buried in the roadway at some restricted locations if absolutely necessary, but two different engineers have assured me that for the most part, the right of way should be able to handle the pipeline. A vital factor, of course, is to reduce the impact by eliminating the need for two pipelines.
The clue is how the Edmonton Journal describes Russell;
Bob Russell has an extensive background in planning and was a member of the Edmonton Metro Regional Planning Commission. He has flown the Douglas Channel, visited Kitimat and toured the Port of Prince Rupert.
This is so typical of the Albertan attitude toward northwest British Columbia, people fly in for a couple of days, make a quick observation, and fly out again and present themselves as experts on the region. (Some “experts” on Kitimat, very active on Twitter have apparently never left Calgary).
It obvious that the “two engineers” who assured him “the right-of-way could handle of pipeline” have no idea what they’re talking about. As the photos show there is barely enough room for a highway and a rail line much less a 25 metre wide pipeline corridor.
If the pipeline was to be built as Russell proposed, the only highway between Prince Rupert and the rest of Canada would have to be closed for years, there are no detours. All so a pipeline can be buried under the asphalt not in solid ground, but in the fill on the side of a riverbank in an avalanche zone?
Of course, closing a highway up here won’t inconvenience anyone in Edmonton or Calgary, will it?
Would CN be happy with years of disruption of their lucrative traffic to Prince Rupert with grain and coal outbound to Asia and all those containers coming in to feed Chinese products to the North American market? (you can be sure Walmart wouldn’t be happy about that, not to mention prairie farmers including those from Alberta)
Russell’s statement
There are existing rights of way for the major highway, the Yellowhead, and CN Rail line from Edmonton to the Port of Prince Rupert, so this eliminates the issue of transgressing First Nations lands.
Is also inaccurate.
I was told by First Nations leaders during the Idle No More demonstrations in the winter of 2013, that, a century ago, when the Grand Trunk built the railway along the Skeena , they did just that, built it without consulting the First Nations along the route, sometime digging up native cemeteries and sacred spots.
While apparently CN has worked in recent years to improve relations with the First Nations along the rail line, according to those leaders some issues of right-of-way remain to be resolved.
If there were any plans to build a diluted bitumen pipeline along that route, that would likely mean another court battle adding to those already before the Federal Court, a court battle that would cost Enbridge, CN, the federal government, environmental NGOs and the First Nations more millions in lawyers’ fees.
It’s doubtful if in the long gone (and perhaps mythical) days of “get it right” journalism that the Russell opinion piece would have passed the scrutiny of an old fashioned copy editor and fact checker.
In 2012, the Edmonton Journal (in a story no longer available on their website) also cited former Alberta Premier Peter Lougheed and former Bank of Canada governor David Dodge, as also favouring Prince Rupert.
Dodge, who was in Edmonton Tuesday to deliver a speech on the global economic outlook at MacEwan University, said Enbridge’s proposed Northern Gateway pipeline to Kitimat looks like even more of a long shot.
“I think the project to Kitimat looks, objectively, more risky. So why hasn’t much greater effort gone into looking at Prince Rupert and taking (bitumen) out that way? My guess is, the easiest place to get B.C. to buy into the project would be to go to Rupert.”
Dodge’s views echo those of former Alberta Premier Peter Lougheed, who also favours looking at an alternate pipeline route to Prince Rupert, where ocean-going supertankers can navigate more easily.
Back in 2012, I finished my piece for the Huffington Post by saying:
So why do people insist, despite the evidence, that the Northern Gateway go to Prince Rupert? It’s no longer an pipeline; it’s emotion and ideology. Ideology in that opposition to the Northern Gateway is seen by conservatives as heretical opposition to free enterprise itself. Emotion among those who see promoting the oil patch as an issue of “Alberta pride” and even Canadian patriotism.
For the promoters of the pipeline to Prince Rupert, ignoring the science of geology and the study of geography across all of northwestern B.C. is no different than repeatedly knocking your head against the Paleozoic metamorphic greenstone of the mountain cliffs along the Skeena. It only gives you a headache.
Things haven’t gotten much better in the past two years. In fact they’re getting worse as opposition to pipelines mounts.
It seems that in 2014 the Alberta and the federal government policy in promoting pipelines Northern Gateway, KinderMorgan’s TransMountain, Keystone XL, Line 9 Reversal and Energy East (slick PR and smiling representatives at open houses, politicians at strictly controlled photo ops) is to ignore facts on the ground and to refuse to deal with the concerns of local people from coast to coast.
There could, perhaps, be a more inclusive and truly science-based pipeline planning process that could see pipelines go on optimum routes but that isn’t happening.
The policy for the oil patch and its politician supporters when it comes to pipelines is facts and geology don’t really matter. So they put on ruby slippers, knock their heels together three times and send pipelines down a yellow brick road to an Emerald City (while telling the locals to ignore the man behind the curtain)
The United States says acidification of the oceans means there is an already growing risk to the northwest coast fishery, including crab and salmon, according to studies released by the National Oceanic and Atmospheric Administration.
As more carbon dioxide is released into the atmosphere and absorbed by the oceans, the water is becoming more acidic and that affects many species, especially shellfish, dissolving the shells.
A NOAA study released today of environmental and economic risks to the Alaska fishery says:
Many of Alaska’s nutritionally and economically valuable marine fisheries are located in waters that are already experiencing ocean acidification, and will see more in the near future…. Communities in southeast and southwest Alaska face the highest risk from ocean acidification because they rely heavily on fisheries that are expected to be most affected by ocean acidification…
An earlier NOAA study, released in April, identified a long term threat to the salmon fishery as small ocean snails called pteropods which are a prime food source for pink salmon are already being affected by the acidification of the ocean.
This photograph from NOAA of a pteropod, important in the ocean diet of pink salmon, shows the first evidence of marine snails from the natural environment along the U.S. West Coast with signs that shells are dissolving. (NOAA)
NOAA says:
The term “ocean acidification” describes the process of ocean water becoming more acidic as a result of absorbing nearly a third of the carbon dioxide released into the atmosphere from human sources. This change in ocean chemistry is affecting marine life, particularly the ability of shellfish, corals and small creatures in the early stages of the food chain to build skeletons or shells.
Today’s NOAA study is the first published research by the Synthesis of Arctic Research (SOAR) program, which is supported by an US inter-agency agreement between NOAA’s Office of Oceanic and Atmospheric Research and the Bureau of Ocean Energy Management (BOEM) Alaska Region.
Des Nobles, President of Local #37 Fish [UFAWU-UNIFOR] told Northwest Coast Energy News that the fisheries union and other fisheries groups in Prince Rupert have asked both the Canadian federal and the BC provincial governments for action on ocean acidification. Nobles says so far those requests have been ignored,
Threat to crabs
The studies show that red king crab and tanner crab grow more slowly and don’t survive as well in more acidic waters. Alaska’s coastal waters are particularly vulnerable to ocean acidification because of cold water that can absorb more carbon dioxide and unique ocean circulation patterns which bring naturally acidic deep ocean waters to the surface.
“We went beyond the traditional approach of looking at dollars lost or species impacted; we know these fisheries are lifelines for native communities and what we’ve learned will help them adapt to a changing ocean environment,” said Jeremy Mathis, Ph.D., co-lead author of the study, an oceanographer at NOAA’s Pacific Marine Environmental Laboratory in Seattle, and the director of the University of Alaska Fairbanks School of Fisheries and Ocean Sciences Ocean Acidification Research Center.
As for Dungeness crab, Sarah Cooley, a co-author of the Alaska study, who was with the Woods Hole Oceanographic Institution at the time, told Northwest Coast Energy News, “The studies have not been done for Dungeness crab that have been done for king and tanner crab, that’s something we’re keenly aware of. There’s a big knowledge gap at this point.” She says NOAA may soon be looking at pilot study on Dungeness crab.
A healthy pteropod collected during the U.S. West Coast survey cruise. (NOAA)
Risk to Salmon, Mackerel and Herring
In a 2011-2013 survey, a NOAA-led research team found the first evidence: “that acidity of continental shelf waters off the West Coast is dissolving the shells of tiny free-swimming marine snails, called pteropods, which provide food for pink salmon, mackerel and herring.”
The survey estimated that the percentage of pteropods along the west coast with dissolving shells due to ocean acidification had “doubled in the near shore habitat since the pre-industrial era and is on track to triple by 2050 when coastal waters become 70 percent more corrosive than in the pre-industrial era due to human-caused ocean acidification.”
That study documented the movement of corrosive waters onto the continental shelf from April to September during the upwelling season, when winds bring water rich in carbon dioxide up from depths of about 120 to 180 metres to the surface and onto the continental shelf.
“We haven’t done the extensive amount of studies yet on the young salmon fry,” Cooley said. “I would love to see those studies done. I think there is a real need for that information. Salmon are just so so important for the entire Pacific Northwest and up to Alaska.”
In Prince Rupert, Barb Faggetter, an independent oceanographer whose company Ocean Ecology has consulted for the fisherman’s union and NGOs, who was not part of the study, spoke generally about the threat of acidification to the region.
She is currently studying the impact of the proposed Liquified Natural Gas terminals that could be built at Prince Rupert near the Skeena River estuary. Faggetter said that acidification could affect the species eaten by juvenile salmon. “As young juveniles they eat a lot of zooplankton including crustaceans and shell fish larvae.”
She added, “Any of the shell fish in the fishery, including probably things like sea urchins are all organisms that are susceptible to ocean acidification because of the loss of their capacity to actually incorporate calcium carbonate into their shells.”
Faggetter said her studies have concentrated on potential habitat loss near Prince Rupert as a result of dredging and other activities for liquified natural gas development, She adds that ocean acidification “has been a consideration that climate change will further worsen any potential damage that we’re currently looking at.”
Her studies of the Skeena estuary are concentrating on “rating” areas based on the food supply available to juvenile salmon, as well as predation and what habitat is available and the quality of that habitat to identify areas that “are most important for the juvenile salmon coming out of the Skeena River estuary and which are less important.”
She said that climate change and ocean acidification could impact the Skeena estuary and “probably reduce some of the environments that are currently good because they have a good food supply. If ocean acidification reduces that food supply that will no longer be good habitat for them” [juvenile salmon].
Bongo nets are deployed up to 200 meters deep to catch marine snails (pteropods), which are indicators of the progress of ocean acidification. The pteropod samples were collected during the U.S. West Coast survey cruises in 2011 and 2013. Unlike the US, Canada’s DFO is using models to track what’s happening to pteropods. (NOAA)
The August 2011 NOAA survey of the pteropods was done at sea using “bongo nets” to retrieve the small snails at depths up to 200 metres. The research drew upon a West Coast survey by the NOAA Ocean Acidification Program in that was conducted on board the R/V Wecoma, owned by the National Science Foundation and operated by Oregon State University.
Nina Bednarsek, Ph.D., of NOAA’s Pacific Marine Environmental Laboratory in Seattle, the lead author of the April pteropod paper said, “Our findings are the first evidence that a large fraction of the West Coast pteropod population is being affected by ocean acidification.
“Dissolving coastal pteropod shells point to the need to study how acidification may be affecting the larger marine ecosystem. These near shore waters provide essential habitat to a great diversity of marine species, including many economically important fish that support coastal economies and provide us with food.”
Ecology and economy
Today’s study on the effects of acidification on the Alaska fishery study examined the potential effects on a state where the fishing industry supports over 100,000 jobs and generates more than $5 billion in annual revenue. Fishery-related tourism also brings in $300 million annually to the state.
A map of Alaska shows the economic and ecological risks to parts of the state from ocean acidification. (NOAA)
The study also shows that approximately 120,000 people or roughly 17 percent of Alaskans rely on subsistence fisheries for most, if not all of their dietary protein. The Alaska subsistence fishery is open to all residents of the state who need it, although a majority of those who participate in the subsistence fishery are Alaska’s First Nations. In that way it is somewhat parallel to Canada’s Food, Ceremonial and Social program for First Nations.
“Ocean acidification is not just an ecological problem—it’s an economic problem,” said Steve Colt, Ph.D., co-author of the study and an economist at the University of Alaska Anchorage. “The people of coastal Alaska, who have always looked to the sea for sustenance and prosperity, will be most affected. But all Alaskans need to understand how and where ocean acidification threatens our marine resources so that we can work together to address the challenges and maintain healthy and productive coastal communities.”
The Alaska study recommends that residents and stakeholders in vulnerable regions prepare for environmental challenge and develop response strategies that incorporate community values and needs.
“This research allows planners to think creatively about ways to help coastal communities withstand environmental change,” said Cooley, who is now science outreach manager at Ocean Conservancy, in Washington, D.C. “Adaptations can be tailored to address specific social and environmental weak points that exist in a community.
“This is really the first time that we’ve been able to go under the hood and really look at the factors that make a particular community in a borough or census are less or more vulnerable from changing conditions resulting from acidification. It gives us a lot of power so that we don’t just look at environmental issues but also look at the social story behind that risk.”
As for the southern part of the Alaska panhandle nearest British Columbia, Cooley said, “What we found is that there is a high relative risk compared to some of the other areas of Alaska and that is because the communities there undertake a lot of subsistence fishing, There tend not be a whole lot of commercial harvests in the fisheries there but they are very very important from a subsistence stand point… And they’re tied to species that we expect to be on the front line of acidification, many of the clam species that are harvested in that area and some of the crab species.”
Long term effects
Libby Jewett, Director of the NOAA Ocean Acidification Program and author of the pteropod study said, “Acidification of our oceans may impact marine ecosystems in a way that threatens the sustainability of the marine resources we depend on.
“Research on the progression and impacts of ocean acidification is vital to understanding the consequences of our burning of fossil fuels.”
“Acidification is happening now,” Cooley said. “We have not yet observed major declines in Alaskan harvested species. In Washington and Oregon they have seen widespread oyster mortality from acidification.
“We don’t have the documentation for what’s happening in Alaska right now but there are a lot of studies staring up right now that will just keep an eye out for that sort of thing, Acidification is going to be continuing progressively over the next decades into the future indefinitely until we really curb carbon dioxide emissions. There’s enough momentum in the system that is going to keep acidification advancing for quite some time.
“What we need to be doing as we cut the carbon dioxide, we need to find ways to strength communities that depend on resources and this study allows us to think differently about that and too really look at how we can strengthen those communities.
Faggetter said. “It’s one more blow to an already complex situation here, My study has been working particularly on eel grass on Flora Bank (pdf) which is a very critical habitat, which is going to be impacted by these potential industrial developments and that impact will affect our juvenile salmon and our salmon fishery very dramatically, that could be further worsened by ocean acidification.”
She said that acidification could also be a long term threat to plans in Prince Rupert to establish a geoduck fishery (pronounced gooey-duck).
The popular large 15 to 20 centimetre clam is harvested in Washington State and southern BC, but so far hasn’t been subject to commercial fishing in the north.
NOAA said today’s study shows that by examining all the factors that contribute to risk, more opportunities can be found to prevent harm to human communities at a local level. Decision-makers can address socioeconomic factors that lower the ability of people and communities to adapt to environmental change, such as low incomes, poor nutrition, lack of educational attainment and lack of diverse employment opportunities.
NOAA’s Ocean Acidification Program and the state of Alaska are also developing tools to help industry adapt to increasing acidity.
The new NOAA study is the first published research by the Synthesis of Arctic Research (SOAR) program. which is supported by an inter-agency agreement between NOAA’s Office of Oceanic and Atmospheric Research and the Bureau of Ocean Energy Management (BOEM) Alaska Region.
Iron and steel in hatcheries, including rebar supporting concrete structural elements, could be distorting the ability of salmon and trout to navigate using the earth’s magnetic fields according to a study released today by Oregon State University.
The exposure to iron and steel distorts the magnetic field around the young fish, affecting the fish’s “map sense” and their ability to navigate, said Nathan Putman, who led the study while working as a postdoctoral researcher in the Oregon Department of Fisheries and Wildlife, part of OSU’s College of Agricultural Sciences.
For decades, scientists have studied how salmon find their way across vast stretches of ocean.
Spawning Steelhead (Oregon State University).
In a study last year, Putman and other researchers presented evidence of a correlation between the oceanic migration patterns of salmon and drift of the Earth’s magnetic field. They confirmed the ability of salmon to navigate using the magnetic field in experiments at the Oregon Hatchery Research Center.
That earlier research confirmed that fish possess a map sense, determining where they are and which way to swim based on the magnetic fields they encounter.
“The better fish navigate, the higher their survival rate,” said Putman, who conducted the research at the Oregon Hatchery Research Center in the Alsea River basin last year. “When their magnetic field is altered, the fish get confused.”
Subtle differences in the magnetic environment within hatcheries could help explain why some hatchery fish do better than others when they are released into the wild, Putman said.
The study suggests that stabilizing the magnetic field by using alternative forms of hatchery construction may be one way to produce a better yield of fish, he said.
“It’s not a hopeless problem,” he said. “You can fix these kinds of things. Retrofitting hatcheries with non-magnetic materials might be worth doing if it leads to making better fish.”
The new findings follow the earlier research by Putman and others that confirmed the connection between salmon and the Earth’s magnetic field.
Researchers exposed hundreds of juvenile Chinook salmon to different magnetic fields that exist at the latitudinal extremes of their oceanic range.
Fish responded to these “simulated magnetic displacements” by swimming in the direction that would bring them toward the center of their marine feeding grounds.
Putman repeated that experiment with the steelhead trout and achieved similar results. He then expanded the research to determine if changes to the magnetic field in which fish were reared would affect their map sense. One group of fish was maintained in a fiberglass tank, while the other group was raised in a similar tank but in the vicinity of iron pipes and a concrete floor with steel rebar, which produced a sharp gradient of magnetic field intensity within the tank. Iron pipes and steel reinforced concrete are common in fish hatcheries.
The scientists monitored and photographed the juvenile steelhead, called parr, and tracked the direction in which they were swimming during simulated magnetic displacement experiments. The steelhead reared in a natural magnetic field adjusted their map sense and tended to swim in the same direction. But fish that were exposed to the iron pipes and steel-reinforced concrete failed to show the appropriate orientation and swam in random directions.
More research is needed to determine exactly what that means for the fish. The loss of their map sense could be temporary and they could recalibrate their magnetic sense after a period of time, Putman said. Alternatively, if there is a critical window in which the steelhead’s map sense is imprinted, and it is exposed to an altered magnetic field then, the fish could remain confused forever, he said.
“There is evidence in other animals, especially in birds, that either is possible,” said Putman, who now works for the National Oceanic and Atmospheric Administration. “We don’t know enough about fish yet to know which is which. We should be able to figure that out with some simple experiments.”
Map showing the ocean range of Chinook salmon and how the fish sense magnetic fields. Fish with a “northern orientation” swim south and vice versa. (Oregon State University)
Putman’s findings were published this week in the journal Biology Letters. The research was funded by Oregon Sea Grant and the Oregon Department of Fish and Wildlife, with support from Oregon State University. Co-authors of the study are OSU’s David Noakes, senior scientist at the Oregon Hatchery Research Center, and Amanda Meinke of the Oregon Hatchery Research Center.
Iain McKechnie and Dana Lepofsky examine ancient herring fish bones that tell the story about how gigantic herring fisheries were for thousands of years in the Pacific Northwest. (SFU)
The herring, now dwindling on on the Pacific Coast, was once “superabundant” from Washington State through British Columbia to Alaska and that is a warning for the future, a new study says.
A team of scientists lead by Simon Fraser University argue that the archaeological record on the Pacific Coast offers a “deep time perspective” going back ten thousand years that can be a guide for future management of the herring and other fish species.
An archaeological study looked at 171 First Nations’ sites from Washington to Alaska and recovered and analyzed 435,777 fish bones from various species.
Herring bones were the most abundant and dating shows that herring abundance can be traced from about 10,700 years ago to about the mid-nineteenth century with the arrival of Europeans and the adoption of industrial harvesting methods by both settlers and some First Nations.
That means herring were perhaps the greatest food source for First Nations for ten thousand years surpassing the “iconic salmon.” Herring bones were the most frequent at 56 per cent of the sites surveyed and made up for 49 per cent of the bones at sites overall.
The study is one of many initiatives of the SFU-based Herring School, a group of researchers that investigates the cultural and ecological importance of herring.
“By compiling the largest data set of archaeological fish bones in the Pacific Northwest Coast, we demonstrate the value of using such data to establish an ecological baseline for modern fisheries,” says Iain McKechnie. The SFU archaeology postdoctoral fellow is the study’s lead author and a recent University of British Columbia graduate.
Co-author and SFU archaeology professor Dana Lepofsky states: “Our archaeological findings fit well with what First Nations have been telling us. Herring have always played a central role in the social and economic lives of coastal communities. Archaeology, combined with oral traditions, is a powerful tool for understanding coastal ecology prior to industrial development.”
The researchers drew from their ancient data-catch concrete evidence that long-ago herring populations were consistently abundant and widespread for thousands of years. This contrasts dramatically with today’s dwindling and erratic herring numbers.
“This kind of ecological baseline extends into the past well beyond the era of industrial fisheries. It is critical for understanding the ecological and cultural basis of coastal fisheries and designing sustainable management systems today,” says Ken Lertzman, another SFU co-author. The SFU School of Resource and Environmental Management professor directs the Hakai Network for Coastal People, Ecosystems and Management.
Map of First Nations’ archaeological sites with high numbers of fish bones. Herring is abundant in sites throughout the Strait of Georgia. In 71% of sites, herring makes up at least 20 per cent of the bones found at the site. (SFU/PNAS)
Heiltsuk tradition
The paper says that the abundance of herring is additionally mirrored in First Nations’ place
names and origin narratives. They give the example of the 2,400-y-old site at Nulu where herring
made up about 85 per cent of the fish found in local middens. In Heiltsuk oral tradition, it is Nulu where Raven first found herring. Another site, 25 kilometres away at the Koeye River, has only has about 10 per cent herring remains and is not associated with herring in Heiltsuk tradition.
(In an e-mail to Northwest Coast Energy News, McKechnie said “there is a paucity of archaeological data from Kitimat and Douglas Channel. There is considerable data from around Prince Rupert, the Dundas Islands and on the central coast Namu/Bella Bella/ Rivers Inlet area and in southern Haida Gwaii.”)
The study says that the archaeological record indicates that places with abundant herring were consistently harvested over time, and suggests that the areas where herring massed or spawned were more extensive and less variable in the past than today. It says that even if there were natural variations in the herring population, the First Nations harvest did not affect the species overall.
It notes:
Many coastal groups maintained family-owned locations for harvesting herring and herring roe from anchored kelp fronds, eel grass, or boughs of hemlock or cedar trees. Herring was harvested at other times of the year than the spawning period when massing in local waters but most ethnohistorical observations identify late winter and springtime spawning as a key period of harvest for both roe and fish.
The herring and herring roe were either consumed or traded among the First Nations.
Sustainable harvests encouraged by building kelp gardens,wherein some roe covered fronds were not collected, by minimizing noise and movement during spawning events, and by elaborate systems of kin-based rights and responsibilities that regulated herring use and distribution.
Industrial harvesting
Industrial harvesting and widespread consumption changed all that. Large numbers of herring were harvested to for rendering to oil or meal. By 1910, the problem was already becoming clear. In that year British Columbia prohibited the reduction of herring for oil and fertilizer. There were reports at that time that larger bays on the Lower Mainland were “being gradually deserted by the larger schools where they were formerly easily obtained.”
But harvesting continued, in 1927 the fishery on eastern Vancouver Island, Columbia, processed
31,103 tons of herring. The SFU study notes that that is roughly twice the harvest rate for 2012 and would also be about 38 per cent of the current herring biomass in the Strait of Georgia.
In Alaska, reduction of herring began in 1882 and reached a peak of 75,000 tons in 1929.
As the coastal populations dwindled, as with other fisheries, the emphasis moved to deeper water. By the 1960s, the herring populations of British Columbia and Washington had collapsed. Canada banned herring reduction entirely in 1968, Washington followed in the early 1980s.
In the 1970s, the herring population off Japan collapsed, which opened up the demand for North American roe, which targeted female herring as they were ready to spawn. That further reduced the herring population so that the roe fishery is now limited to just a few areas including parts of the Salish Sea and off Sitka and Togiak, Alaska.
The First Nations food, social and ceremonial herring fishery continues.
Government fishery managers, scientists, and local and indigenous peoples lack consensus on the cumulative consequences of ongoing commercial fisheries on herring populations. Many First Nations, Native Americans, Alaska Natives, and other local fishers, based on personal observations and traditional knowledge, hypothesize that local herring stocks, on which they consistently relied for generations, have been dramatically reduced and made more difficult to access following 20th century industrial fishing
Deep time perspective
The SFU study says that some fisheries managers are suggesting that the herring population has just shifted to other locations and other causes may be climate change and the redounding of predator populations.
But the study concludes, that:
Our data support the idea that if past populations of Pacific herring exhibited substantial variability, then this variability was expressed around a high enough mean abundance such that there was adequate herring available for indigenous fishers to sustain their harvests but avoid the extirpation of local populations.
These records thus demonstrate a fishery that was sustainable at local and regional scales over millennia, and a resilient relationship between harvesters, herring, and environmental change that has been absent in the modern era.
Archaeological data have the potential to provide a deep time perspective on the interaction between humans and the resources on which they depend.
Furthermore, the data can contribute significantly toward developing temporally meaningful ecological baselines that avoid the biases of shorter-term records.
Other universities participating in the study were the University of British Columbia, University of Oregon, Portland State University, Lakehead University, University of Toronto, Rutgers University and the University of Alberta.
In a news release, Rio Tinto says it is considering its future holdings in a Vancouver-based mining company named Northern Dynasty, which now is the main proponent of the copper and gold mine project. Rio Tinto “through QIT-Fer et Titane Inc., an indirect wholly-owned subsidiary of Rio Tinto plc, owns 18,145,845 common shares of Northern Dynasty, representing approximately 19.1 per cent of Northern Dynasty’s issued and outstanding shares.”
Rio Tinto says the review is part of the financially troubled conglomerate’s review of its mining holdings: “Rio Tinto will consider the Pebble Project’s fit with the Group’s strategy of investing in and operating long life and expandable assets, and with the strategy for its Copper business, which is focused on its four producing assets (Kennecott Utah Copper, Oyu Tolgoi and its interests in Escondida and Grasberg), and two development projects, La Granja in Peru and Resolution in Arizona.”
The Pebble Mine project is as controversial in Alaska and the western United States as the Northern Gateway pipeline project is in British Columbia. Critics say the proposed huge open pit copper and gold mine could endanger the Alaska headwaters of the Kvichak and Nushagak rivers, considered two of the world’s great salmon spawning grounds. Both flow into the “salmon nursery” in Bristol Bay, where young salmon go to feed, possibly also imperiling salmon stocks from both Alaska and British Columbia
New York City controller John Liu and California state controller John Chiang said their letter was prompted when Rio Tinto rival Anglo-American sold its share of the controversial project in September.
Their letter cited environmental concerns, including the fact that the project would leave 10 billion tonnes of mining waste near the salmon spawning grounds, increased regulatory scrutiny from the US Environmental Protection Agency and what the two controllers called “reputational risks” including opposition from Alaska First Nations and even jewelry companies like Tiffany & Co and Zales and Jostens. The letter cited a poll which showed 73 per cent of Americans, 84 per cent of Alaskans and 98 per cent of Bristol Bay residents opposed the project.
On December 19, the two controllers then called upon Rio Tinto to divest itself of the Northern Dynasty shares, calling, according to the Associated Press, Rio Tinto’s response “perfunctory.”
Rio Tinto spokesman David Outhwaite told AP the strategic review is not connected to that letter or a letter the financial officers sent Walsh.
Ango-American, one of Rio Tinto’s giant mining rivals, pulled out of the Pebble Mine project in September. Teck Cominco and Mitsubishi had pulled out earlier, leaving Rio Tinto as the only major company involved in the project.
When it decided to sell its share back to Northern Dynasty, Anglo-American also cited a “strategic review” of the company’s operations.
At the time, Rio Tinto’s Jennifer Ruso told the Alaska Dispatch, the company “will only participate in the project if it can be constructed, operated and closed in a manner that preserves the water, salmon, fisheries, wildlife and the environment. The project must also be developed in accordance with our strict standards for health, safety, environmental protection, cultural heritage, and community relations.”
Northern Dynasty and Rio Tinto then said they were considering an underground mine instead of an open pit operation, which did not satisfy environmental critics of the project.
On December 13, Northern Dynasty reported that it had re-acquired 100 per cent ownership of the Pebble Mine project after completing the pull out deal with Anglo-American.
The company, however, is looking for new partners. It says:
Our primary focus is to select the right partner for Northern Dynasty and the right investor for Alaska, a company with sufficient financial resources and technical capabilities, working experience in the United States and a shared commitment to environmentally sound and socially responsible development. We have little doubt that Pebble will attract major mining company interest in the months ahead.
The news release says that Northern Dynasty has spent US$556 million over the past few years and “substantial progress has been made toward our goal of permitting, constructing and operating a world-class, modern and environmentally responsible mine at Pebble that will co-exist with the fisheries resources of southwest Alaska.”
In the news release, Northern Dynasty President & CEO Ronald Thiessen said Pebble’s engineering design, environmental science and regulatory planning were advanced that the company would begin to ask for US and Alaska permitting under the National Environmental Policy Act (NEPA) sometime the first quarter of 2014.
It describes the project this way:
The Pebble Project is an initiative to responsibly develop a globally significant copper, gold and molybdenum deposit in southwest Alaska into a modern, long-life mine, which will benefit not only Northern Dynasty, but the people, culture and industries of the State of Alaska, as well as suppliers, consultants and industries in the Lower 48 United States of America.
A recent study authored by IHS Global Insight, entitled The Economic and Employment Contributions of a Conceptual Pebble Mine to the Alaska and United States Economies found the Pebble Project has the potential to support 15,000 American jobs and contribute more than $2.5 billion annually to US GDP over decades of production.
The Pebble Project is located 200 miles southwest of Anchorage on state land designated for mineral exploration and development. It is situated in a region of rolling tundra approximately 1,000 feet above sea-level, 65 miles from tidewater on Cook Inlet and presents favourable conditions for successful mine site and infrastructure development.
As the Alaska Dispatch reported when Anglo-American pulled out, the copper and gold deposits are so extensive and potentially valuable that pressure to develop the mine will continue despite the threat to salmon and the Alaska environment.
