Saving Seafood

Years After the Pacific Marine Heat Wave, Ecosystem Shifts Persist

May 10, 2021 — From 2014 to 2016, the Gulf of Alaska experienced the worst marine heat wave of the decade. From single-celled organisms to top predators, practically no level of the ecosystem was left unscathed. During the Pacific marine heat wave, tens of thousands of dead seabirds washed up on beaches, unusually low numbers of humpback whales arrived in their summer habitats, and toxic algal blooms spread along the West Coast of North America.

Now, a new study in Scientific Reports casts doubt on whether Gulf ecosystems will be able to return to their pre–heat wave conditions. This study—a collaborative effort between researchers at NOAA and several other government and research organizations—combined dozens of data sets to build a detailed picture of how many heat wave–induced changes have persisted. Thanks in part to long-term monitoring efforts by Gulf Watch Alaska, a program established in 2012 to assess the ongoing effects from the 1989 Exxon Valdez oil spill, scientists were able to compare pre–heat wave and present conditions in several different sections of the ecosystem.

“We were able to show these impacts—from the intertidal out to the pelagic [open ocean] ecosystem, and from algae and phytoplankton on up to whales and commercial fisheries, and a lot of different species in between,” said Robert Suryan, a NOAA marine biologist and lead author of the study.

Read the full story at EcoWatch

NOAA Fisheries releases new video looking at environmental conditions in the Gulf of Alaska in 2020

May 4, 2021 — The following was released by NOAA Fisheries:

More than 90 researchers and local community members contributed knowledge and information to help NOAA Fisheries scientists generate an ecosystem status report for the Gulf of Alaska ecosystem last year. This new video captures some of the high points of that report.

“We are excited to offer another way of sharing what we learned about ecosystem conditions in the Gulf of Alaska last year,” said Bridget Ferriss, Gulf of Alaska Ecosystem Status Report editor. “This video is a nice complement to our other communications products.”

For decades, scientists at the Alaska Fisheries Science Center have been pulling together data for numerous indicators of ecosystem health including water temperature, plankton abundance, and seabird reproductive success. NOAA Fisheries and other scientists from other organizations monitor these indicators for the four marine ecosystems that surround Alaska–the Aleutian Islands, the Bering Sea, the Gulf of Alaska, and the Arctic.

Every fall, the North Pacific Fishery Management Council sets catch limits for groundfish and crab in federal waters off Alaska for the upcoming fishing year. They base these decisions on scientific research and analysis including fish stock assessments, economic information on the commercial fishery, and these annual ecosystem assessments.

“Ecosystem assessments help us understand the context by explaining, among other things, how changes in the ecosystem might affect present and future abundance of commercially important fish and crab stocks,” said Ferriss.

For each of the Alaska Ecosystem Status Reports, a variety of indicators are evaluated annually. All of this information helps fisheries managers to determine what steps to take to ensure sustainable fish and crab fisheries while preserving the health of the overall ecosystem.

The goal of this video is to communicate our updated summary of ecosystem information beyond the Council, to the broader community.

Read the full release here

ALASKA: Commercial and subsistence harvesters speak out against trawler bycatch of Chinook salmon

April 22, 2021 — Alaska’s commercial fishermen have been speaking out against big trawlers for years, complaining that the large vessels in federal waters are scooping up mature and juvenile fish. The regional council that manages federal fisheries recently heard from hundreds concerned about the number of salmon and other species that end up as bycatch in trawl nets.

For Alaska’s troll fleet, king salmon is their money fish. In state waters, small crews on these 40 to 50-foot boats — or even small skiffs — will catch a fish at a time, and it’s worth it: Chinook salmon can fetch $6 a pound from a processor.

But there’s another big-money fish in Alaska: Pollock. It’s the white fish found in a McDonald’s Filet-O-Fish® or an imitation crab stick. And the factory trawlers that ply the Bering Sea and Gulf of Alaska in search of pollock and other groundfish scoop up Chinook salmon and other species in their wide nets.

Federal fisheries data show trawlers in the North Pacific took about a tenth of the Chinook — or king salmon — caught by Alaska’s commercial salmon fleet last year. And those numbers are tracking the same this year. But none of that catch happens on purpose.

Preliminary ADF&G data show about 263,000 kings were commercially harvested last year statewide. As of last week (April 15), bycatch in the Bering Sea and Gulf of Alaska areas for 2021 was around 16,000 fish, over six percent of last year’s statewide commercial harvest. Last year’s trawler bycatch was 26,000 kings, or about a tenth of the 2020 commercial Chinook harvest in-state.

Read the full story at KSTK

Cod stocks creep back up for Gulf of Alaska, but remain down for Bering Sea, Aleutian Islands

April 15, 2021 — Pacific cod stocks have begun to rebound in the Gulf of Alaska, but the total allowable catch (TAC) for 2021 remains low at 17,321 metric tons. Last year, managers curtailed the fishery in federally managed waters after stock assessments put the biomass near the bottom of the threshold for conducting the fishery.

Though recruitment of younger cod and uncaught fish from last year have added to the abundance in most recent assessments, full recovery of the stock could take years. The warm-water “blob” of 2014 has been blamed for the crash.

Read the full story at Seafood Source

Key federal fisheries advisory panel loses Alaska Native voice

April 13, 2021 — The North Pacific Fishery Management Council often flies under the radar, meeting in dimly lit conference rooms and delving into technical questions about fish stocks and ecosystems. But it has a hugely important job: conservation of species and managing offshore fisheries for species like cod, pollock and crab, which are huge economic drivers for coastal communities on the Bering Sea and Gulf of Alaska.

At the end of last year, the council went into a closed door meeting. When it emerged, it had eliminated two seats on its key advisory panel: Ernie Weiss of Anchorage who had reached his cap for reappointment on the panel, and Natasha Hayden of Kodiak, a vocal advocate for smaller vessels and Alaska Natives, who had been seeking reappointment.

The blowback of Hayden’s ouster was immediate, especially among stakeholders advocating for Indigenous voices in fisheries management.

At the council’s February meeting, more than 20 people — from conservation council representatives, to well established commercial fishermen, to policy directors at Native non-profits — provided public testimony calling for Hayden’s reappointment.

“This is a time when we should be adding more Indigenous voices to council bodies and not less,” Marissa Merculieff, director of justice and governance administration for the Aleut Community of St. Paul Island Tribal Government, told the council.

Read the full story at KTOO

Pacific heat wave had lasting impacts on Gulf of Alaska marine species

April 13, 2021 — When a heat wave swept through the northeast Pacific Ocean between 2014 and 2016, it changed the marine makeup of the Gulf of Alaska. The warm water decimated some commercial fish populations.

Some species bounced back right away. But a recent study from NOAA finds others are rebounding more slowly.

NOAA’s study charted the impacts of the heat wave — also known as “the blob” —  on gulf marine species over time, through 2019.

Some of the blob’s impacts on local marine life were immediate. Rob Suryan is a program manager for NOAA in Juneau and the lead author on the study. He said in 2015 and 2016, thousands of common murres were found dead.

“Especially noticeable in the Prince William Sound, near Whittier, actually, a beach was just littered with thousands of carcasses,” he said.

NOAA focused on longer-term trends in this study using data from Gulf Watch Alaska, a group that monitors species recovery in Alaska waters and is funded by the Exxon-Valdez Oil Spill Trustee Council.

Read the full story at KTOO

Climate Change Raises Risk of Prey Mismatch for Young Cod in Alaska

April 9, 2021 — The following was released by NOAA Fisheries:

For a young Pacific cod, first feeding is a life-or-death moment. Cod larva are nourished by a yolk sac after they hatch. Once the yolk sac is depleted, they must find food within days in order to survive. If there is no prey available during that critical window for first feeding, young fish face starvation.

Warming Alaska waters are increasing the risk of prey mismatch and starvation for cod larvae, a new study finds.

NOAA Fisheries scientists collaborated with our partners to look at how temperature shifts affected first feeding Pacific cod larvae in two large ecosystems: the southeast Bering Sea and Gulf of Alaska. The models made predictions for 1998–2019, a period that encompassed warm and cool years, including a series of extreme heatwave events beginning in 2014.

“Warming can increase the metabolic demands of fish and shift the timing of their food production. So you have temperature unravelling the system, moving food around. And you have fish needing food now. When mismatched prey timing and increased metabolic demand line up, it can be pretty disastrous,” said Ben Laurel, NOAA Fisheries scientist at the Alaska Fisheries Science Center, who led the study. “The better we can understand and predict these effects, the more effectively we can manage them now and in the future.”

Read the full release here

Alaska cod: Gulf cod stocks creep back, but Bering and Aleutian still down

April 5, 2021 — Pacific cod stocks have begun to rebound in the Gulf of Alaska, but the TAC for 2021 remains low at 17,321 metric tons. Last year managers curtailed the fishery in federally managed waters after stock assessments put the biomass near the bottom of the threshold for conducting the fishery.

Though the recruitment of younger cod and the uncaught fish from last year have added to the abundance in most recent assessments, full recovery of the stock could take years. The warm-water blob of 2014 has been blamed for the crash.

The warming waters began in 2013 and precipitated a 79 percent decline in the stocks. Prevalent theories suggest that warmer waters raise the metabolic rates for the young cod. At the same time the forage species for young cod appeared to have higher concentrations of protein and lower concentrations of fat. More recent studies determined that the eggs of cod survive in a narrow range of temperature (3 to 6 degrees C, or 37.4 to 42.8 degrees F).

Stocks also continue to decline in the Bering Sea and Aleutian Islands harvest areas. The 2021 TAC for the Bering Sea has been set at 111,380 metric tons with a TAC of 13,796 metric tons for the Aleutian Islands.

The 2020 TACs for the respective areas had been set at 141,799 metric tons and 14,214 metric tons.

Read the full story at National Fisherman

Slow start, higher prices for Alaska halibut season

March 24, 2021 — Halibut prices for Alaska fishermen for 2021 started out significantly higher than last year, despite sluggish demand and transportation logjams in some regions.

The Pacific halibut fishery opened on March 6 and two weeks later only 80 deliveries were made, 46 at Southeast ports and 34 from the Central Gulf totaling 355,524 pounds. Most landings appeared to be small lots that were purchased on consignment.

The first fish typically fetches higher prices and then drops off as the season progresses. No Alaska ports reported paying under $5 per pound, whereas the 2020 price to Alaska fishermen averaged $4.

Early prices at Sitka and Juneau, where there is daily air service, were reported at $5.50-$5.75 a pound, up by $1 from last year, and deliveries at Petersburg paid out at $5.75 straight. No ferry service and high costs for airfreight bit into buying at nearly all Southeast ports, where major processors said they aren’t purchasing halibut until April or May.

Read the full story at National Fisherman