Saving Seafood

Small fish size linked to poorer runs of chinook in Alaska’s biggest rivers

December 9, 2024 — The shrinking size of Alaska salmon, a decades-long trend linked in part to warming conditions in the ocean, is hampering the ability of chinook in Alaska’s two biggest rivers to produce new generations needed to maintain healthy populations, a new study shows.

The University of Alaska Fairbanks-led study shows how the body conditions of chinook salmon, also known as king salmon, combined with extreme heat and cold in the ocean and freshwater environments, have converged in the Yukon and Kuskokwim river systems to depress what is termed “productivity” — the successful reproduction that results in adult spawners returning to the same area.

The study examines 26 different populations of chinook in those two river systems in areas from Western Alaska to the Yukon River uplands in Canada. Chinook runs in those rivers have faltered in recent years, and the situation has been so dire on the Canadian part of the Yukon that U.S. and Canadian officials earlier this year suspended all harvests of Canadian-origin chinook for seven years.

The analysis of multiple factors and conditions revealed that fish size was a major factor that determined productivity, defined as adult salmon returning to spawning grounds successfully producing a next generation of adults to come back to the same spawning area.

Read the full story at the Anchorage Daily News

CALIFORNIA: California’s 2023 salmon disaster relief funding to be released by end of year

November 29, 2024 — U.S. Representative Jared Huffman (D-California) said that NOAA Fisheries will finally release financial relief for the 2023 closure of the California’s salmon fishery, but it could still be a while before fishers receive that relief.

California’s fishing community has been devastated by back-to-back closures of the state’s Chinook salmon fisheries. California lawmakers urged the federal government to approve financial relief quickly, citing the severe impact the closures are having on coastal communities that depend on salmon. However, the federal government’s bureaucratic process for fishery disaster relief can take multiple years.

Read the full article at SeafoodSource

New study of salmon abundance prompts a rethink of endangered killer whale decline

November 26, 2024 — King salmon, or chinook, are a critical part of the diet of Southern Resident Killer Whales (SRKW). The population of Southern Residents has been dangerously low for decades, at around 75 members.

Research into this problem focuses on the habitat, and especially the availability of chinook. There is a preponderance of evidence correlating, for example, low birth rates among Southern Residents to years of low abundance of chinook. There are also statistical models that point to the same conclusion: Southern Residents aren’t getting enough of what they need to thrive.

But no one has ever gone out and counted the chinook in the Southern Resident habitat – until now.

“And what we found was the opposite of what we expected, what was predicted,” said Dr. Andrew Trites, “the prevalence of chinook was double in the Southern Resident Killer Whale habitat.”

Trites is the director of the Marine Mammal Research Unit at the University of British Columbia. He expected his research to confirm the premise that Southern Residents lacked a readily available supply of chinook – not upend it.

Read the full article at KCAW

Restoring Pocket Estuaries Key to Puget Sound Chinook Recovery in Washington

November 21, 2024 — As a tiny Puget Sound Chinook salmon fry, your job is to eat as much as possible and avoid predators. You need to grow strong so you can survive the ocean and one day return to spawn. But what if heavy flows flush you from your river into salt water before you’re ready? Or, what if you can’t find quality habitat in your home watershed? You cross your fins and hope you can find a pocket estuary.

Pocket estuaries are where shorelines are protected from waves, allowing salt marsh to grow, and are often fed by freshwater streams. They serve as nurseries for juvenile salmon that leave their home rivers. However, most pocket estuaries, like other salmon habitat in the Puget Sound, have been degraded and filled in for development and agriculture. This poses a serious threat to the recovery of the threatened Puget Sound Chinook.

With funding from NOAA’s Office of Habitat Conservation, the Skagit River System Cooperative (SRSC) and many partners are restoring the Similk pocket estuary for Skagit River Chinook. In 2023 and 2024, the Cooperative was awarded $5.8 million through the Bipartisan Infrastructure Law and Inflation Reduction Act for salmon habitat restoration work in Washington State. NOAA has supported restoration work on the Skagit River and other locations in Puget Sound for decades.

Read the full article at NOAA Fisheries 

Salmon return to lay eggs in historic habitat after largest dam removal project in US history

November 18, 2024 — A giant female Chinook salmon flips on her side in the shallow water and wriggles wildly, using her tail to carve out a nest in the riverbed as her body glistens in the sunlight. In another moment, males butt into each other as they jockey for a good position to fertilize eggs.

These are scenes local tribes have dreamed of seeing for decades as they fought to bring down four hydroelectric dams blocking passage for struggling salmon along more than 400 miles (644 kilometers) of the Klamath River and its tributaries along the Oregon-California border.

Now, less than a month after those dams came down in the largest dam removal project in U.S. history, salmon are once more returning to spawn in cool creeks that have been cut off to them for generations. Video shot by the Yurok Tribe show that hundreds of salmon have made it to tributaries between the former Iron Gate and Copco dams, a hopeful sign for the newly freed waterway.

“Seeing salmon spawning above the former dams fills my heart,” said Joseph L. James, chairman of the Yurok Tribe. “Our salmon are coming home. Klamath Basin tribes fought for decades to make this day a reality because our future generations deserve to inherit a healthier river from the headwaters to the sea.”

The Klamath River flows from its headwaters in southern Oregon and across the mountainous forests of northern California before it reaches the Pacific Ocean

Read the full article at The Associated Press

CALIFORNIA: A third straight year with no California salmon fishing? Early fish counts suggest it could happen

October 31, 2024 — Farmers can estimate the size of a harvest months in advance by counting the blossoms on their trees. Similarly, salmon fishers can cast an eye into the future by counting spawning fish in a river. Fishery managers are doing that now in the Sacramento River and its tributaries, and what they’re seeing could be a bad sign for next year.

The low count of returning adult salmon, made by the federally operated Coleman National Fish Hatchery, is preliminary, with several weeks left in the natural spawning period for the Sacramento Valley’s fall-run Chinook, backbone of the state’s salmon fishing economy.

There is even some possible good news in the numbers — a large percentage of immature Chinook, called “jacks.” This demographic slice of the salmon population can be a predictive indicator of ocean abundance for the coming season, and it could be a sign there are more fish in the ocean than many expected — though officials say it’s too early to tell.

Overall, the unwelcome numbers, mirroring similar figures from last year, are alarming to people who fish, for they portend the possible continuation of the two-year-and-counting statewide ban on salmon fishing, imposed in 2023 following a weak spawning season.

Read the full article at Cal Matters

ALASKA: Chinook bycatch shuts down pollock fishery in Central Gulf of Alaska

October 8, 2024 — Commercial fishing for pollock in the Central Gulf of Alaska came to a halt on Sept. 25, leaving 50,000 tons of the whitefish in the water, when shut down by the National Marine Fisheries Service (NMFS) to prevent exceeding the limit on Chinook salmon prohibited species catch (PSC). The action taken by Jon M. Kurland, regional administrator for the Alaska Region of NMFS, came after the captain of one of 19 trawlers fishing for pollock in the Central Gulf pulled up a net with an estimated 2,000 Chinook salmon.

The Chinook prohibited species catch in this pollock trawl fisheries is 18,316 Chinook salmon. As of Sept. 27, NMFS data indicated the PSC estimate for Chinook salmon in the central Gulf pollock fishery at 19,665 fish. In last week’s incident, the captain immediately notified the partner trawler he was fishing with and they both notified the Alaska Groundfish Data Bank of the bycatch. Both are local vessels based in Kodiak.

Total PSC estimates are calculated using verified information collected by observers.

“This was unprecedented,” said Julie Bonney, owner and executive director of the Alaska Groundfish Data Bank. “Over the last 20 years, there has never been that much prohibit species salmon taken in one tow of the trawlers fishing in the Central Gulf for pollock.”

Measures taken by the North Pacific Fishery Management Council to minimize bycatch worked —but the cost to fishermen, processors and the city of Kodiak will be in the millions of dollars, Bonney said. The 19 trawlers had caught just 18,000 tons of pollock.

Closing down the fishery left 50,000 tons of pollock in the ocean, which will impact jobs of commercial fishing crews, processing company workers, and myriad businesses that are engaged with the fishing industry. Bonney said she even got a call from a Kodiak man whose company services vending machines in the processing facilities in Kodiak.

Read the full article at The Cordova Times

With dams gone, Klamath salmon start long road to recovery

October 4, 2024 — Salmon watchers in the Pacific Northwest are warning it could take at least a decade for fish in the Lower Klamath River to recover following the nation’s largest-ever dam removal.

The breaching of four hydroelectric dams restored more than 400 miles of free-flowing waterway to the region and came after decades of negotiations among a host of parties, including tribal nations, states, the federal government, a power company and nonprofits.

Months of aggressive demolition allowed the Klamath River to return to its main channel for the first time in more than a century in August, as work continued through Wednesday to remove hydropower facilities and other remaining infrastructure.

Read the full article at E&E News

West Coast Chinook Salmon Get a New Genetic Reference Database

September 28, 2024 — NOAA scientists have upgraded a crucial tool for Chinook salmon conservation. This genetic reference tool allows researchers to pinpoint the river system individual fish come from, enabling more precise management and protection of threatened and endangered populations.

“It’s like giving every fish a unique genetic fingerprint,” says Donald Van Doornik, a NOAA Fisheries fish biologist and lead author of a new paper describing the work in the North American Journal of Fisheries Management. “We can use this fingerprint to figure out where that fish came from by comparing it to other fish’s DNA.”

Read the full article at NOAA Fisheries