Saving Seafood

Warming conditions are making northern Bering Sea more friendly for pink salmon

September 22, 2020 — Pink salmon, the most plentiful and cheapest of Alaska’s five salmon species, are finding more hospitable habitat in the warming northern Bering Sea, a new study finds.

There is a clear link between warming temperatures at Nome and better juvenile salmon productivity in rivers that flow into the northern Bering Sea, said the study, published in the journal Deep Sea Research Part II: Topical Studies in Oceanography.

Pink salmon, a species more associated with waters off Alaska’s southern coast, appear to be among those boreal species working their way into more northern waters in response to climate change.

Pink salmon’s short life cycle makes their population more adaptable to these changes in environmental conditions, according to the study. Other salmon species spend up to seven years at sea before returning to freshwater to spawn, but pink salmon have a total life cycle of only two years — counting their time in both saltwater and freshwater — and that relatively quick turnaround gives more chances for succeeding generations to shift their migration patterns.

“Pink salmon are definitely good at straying,” said lead author Ed Farley of the National Oceanic and Atmospheric Administration. “They definitely want to go seek out other habitat.”

Read the full story at Arctic Today

DREW CHERRY: America’s fisheries management has been a success. Now that’s under threat.

September 18, 2020 — Americans can be proud of their fishery management system over the past few decades, particularly in the Pacific Northwest, where one of the world’s single-largest stocks of fish, Alaska pollock, is harvested, bringing in some $2 billion (€1.7 billion) and tens of thousands of jobs.

It’s an incredible case study in how science and policy can combat poor regulation and lead to a full recovery of threatened stocks and improved management through meticulous science and shared commitment.

One example: If you’ve been on an Alaska pollock fishing vessel, you have seen the exhaustive monitoring systems that go into keeping track of salmon bycatch. Despite trawl nets that can bring up 200,000 fish in the space of an hour, each of the catcher processors plying the waters can — and by most accounts do — keep track of individual salmon that are caught to mitigate the impact on those threatened fish.

That kind of investment does not happen without the voluntary participation of fishing companies that are committed to science-based fisheries management.

Read the full opinion piece at IntraFish

The future of food from the sea, explained

September 15, 2020 — In the year 2050, Earth will have almost 10 billion humans who will eat over 500 billion kilograms of meat. That is 2 billion more people and 177 billion more kilograms of meat than Earth currently has. With land-based meat fraught with climate and environmental impacts, how much animal protein can be sustainably supplied by the ocean? A new (open access) paper in Nature titled, The Future of Food from the Sea, answered that question and provided an economic roadmap for sustainable ocean food production.

The authors conclude that by 2050, the ocean could sustainably provide 80-103 billion kilograms of food, a 36-74% increase compared to the current yield of 59 billion kilograms. Crucially, the 2050 numbers were not a simple calculation of the carrying capacity of food production, but instead reflected the economic realities of growing and harvesting food in the ocean. The authors identified four key steps towards a more bountiful ocean:

  1. Improve fishery management
  2. Implement policy reforms to address mariculture
  3. Advance feed technologies for fed mariculture
  4. Shift consumer demand

In this post, I explain the numbers behind potential food production in the ocean and what the policy and governance process might look like going forward.

Read the full story at Sustainable Fisheries UW

Study finds declines in size of Alaska salmon

September 15, 2020 — A recent study that dove into more than 60 years of records from the Alaska Department Fish and Game found that salmon returning to Alaska’s rivers are on average smaller than they were in the past.

The study, headed up by biologists from the University of California Santa Cruz and the University of Alaska, Fairbanks, attributes declines in salmon size to “shifting age structures associated with climate and competition at sea.”

Read the full story at Seafood Source

Study Discovers Bias in Lice Counts on Farmed Salmon When Done by Farm Operators

September 14, 2020 — Mandatory self-monitoring can save taxpayers money, but a study out of Simon Fraser University found bias in the routine counting of sea-lice on farmed salmon in pens off the coast of British Columbia.

The scientists found that industry’s monthly counts two species of sea-lice are underestimated significantly. Canada’s federal Department of Fisheries and Oceans found the numbers increased by a factor of nearly 2 for one species of lice and just over a factor of 1 (in other words, doubling the amount) for another. Less lice means less delousing treatments, which are costly.

Read the full story at Seafood News

Coronavirus Can Remain Infectious on Chilled Salmon For Over a Week, Per Chinese Study

September 10, 2020 — Researchers in China say the coronavirus can remain on chilled salmon and continue to be infectious for over a week.

According to Bloomberg, the research team from the South China Agricultural University and Guangdong Academy of Agricultural Sciences in Guangzhou, found that COVID-19 collected from salmon can survive for eight days at 39 degrees Fahrenheit, a close temperature at which salmon are typically transported.

Read the full story at Seafood News

Pink salmon could prosper in warmer Arctic rivers and streams, study says

September 9, 2020 — A new study has found that global warming could produce higher numbers of pink salmon in the Arctic by making rivers and streams more hospitable for spawning.

The analysis was published by U.S. and Canadian scientists in the journal Deep Sea Research Part II, Alaska’s Energy Desk reported Monday.

The findings bolster reports by Alaska subsistence fishermen that pink salmon numbers have increased as the Arctic warms at more than double the rate of the rest of the globe.

“Maybe in the past, they’d see a few adult pink salmon here and there every few years. Now they’re seeing them every year,” said Ed Farley, a federal fisheries scientist at the Auke Bay Laboratories in Juneau.

Read the full story at the Anchorage Daily News

OREGON: Federal plan for Columbia River system dams sees opposition

September 3, 2020 — A final plan impacting the Columbia River system released earlier this month has some anglers and conservationists still looking for more answers.

The Preferred Alternative in the Columbia River System Operational Final Environmental Impact Statement includes structural modifications to some of the dams to benefit passage of adult salmon, steelhead and Pacific lamprey.

Greg Haller, of Pacific Rivers, said the plan does not represent a major system overall and he is not convinced the spill option benefits juvenile fish.

“Going with a flexible spill agreement as a long-term solution is a bad choice,” he said. “Breaching the dams has been identified as the best thing for fish. I think they gave that analysis short shrift.”

Additionally, proposed operational changes in the upper basin would avoid adverse effects to resident fish, including federally protected bull trout and Kootenai River white sturgeon.

Read the full story at The East Oregonian

MARYLAND: Land-based salmon farm proposed for Chesapeake’s Eastern Shore

September 3, 2020 — The Chesapeake Bay is known to many for the seafood it produces: blue crabs, oysters and striped bass.

In a few years, though, the Bay region could become a major producer of an even more popular seafood that doesn’t come from the Chesapeake. A Norwegian company, AquaCon, has unveiled plans to raise salmon on Maryland’s Eastern Shore.

AquaCon executives intend to build a $300 million indoor salmon farm on the outskirts of Federalsburg in Caroline County. By 2024, they aim to harvest 3 million fish a year weighing 14,000 metric tons — an amount on par with Maryland’s annual commercial crab catch.

If that goes as planned, the company expects to build two more land-based salmon farms on the Shore over the next six or seven years, bringing production up to 42,000 tons annually. That’s more than the Baywide landings of any fish or shellfish, except for menhaden, and more valuable commercially.

AquaCon’s announcement comes amid a rush by mostly European aquaculture companies to supply Americans with farmed salmon. Another Norwegian company is preparing for its first full harvest later this year from a facility south of Miami, and plans have been announced to build big indoor salmon farms in Maine and on the West Coast. Two small U.S.-based salmon operations in the Midwest also are moving to expand production.

Read the full story at the Bay Journal

Southern Oregon/Northern California Coast Coho Technical Workgroup online meeting October 6-7, 2020

September 3, 2020 — The following was released by the Pacific Fishery Management Council:

The online meeting will be held Tuesday, October 6 through Wednesday, October 7, 2020; 9 a.m. to 5 p.m., Pacific Daylight Time each day.  The meeting times are an estimate; the meeting will adjourn when business for the day is complete.

Please see the SONCC Workgroup online meeting notice on the Council’s website for purpose and participation details.

For further information:

  • Please contact Pacific Fishery Management Council staff officer Robin Ehlke at 503-820-2410; toll-free 1-866-806-7204.