Saving Seafood

Low-Fat Diet Possible Culprit in Poor Survival of Young Pollock Born 2013

July 21, 2021 — The following was released by NOAA Fisheries:

In summer 2013,  the number of juvenile Alaska pollock in the Gulf of Alaska was the largest on record by far. A year later, those fish were mostly gone.

A new NOAA Fisheries study explores what happened to the pollock born in 2013,  focusing on the interaction between juvenile fish and their prey. Results suggest that a diet high in low-fat food may have kept fish from gaining the weight they needed to survive over winter.

“Our results point to poor diet as a contributing factor,” said NOAA Fisheries Alaska Fisheries Science Center biologist Jesse Lamb, who led the study with colleague David Kimmel. “But there is probably not just one answer. Cannibalism and wind-driven transport to inferior habitat likely also played a role. With that combination, the 2013 year class had the deck stacked against them.”

Read the full release here

Alaska’s Dungeness crab prices double, halibut and blackcod also on the rise

July 16, 2021 — Catches for Dungeness crab at Southeast Alaska are going slow so far for 163 boats, but prices of $4.20 a pound are more than double last year’s. The crab fishery will run through mid-August and reopen in October.

Kodiak crabbers were getting $4.25 for their Dungeness, also more than double.

Norton Sound opened for king crab on June 15 with a 290,000-pound catch limit. Concerns over the depleted stock resulted in no buyers and only one participant who is selling crab locally.

Prince William Sound’s pot shrimp fishery remains open until mid-September with a catch limit of 70,000 pounds. A lingcod fishery opened in the sound on July 1 for a catch of nearly 33,000 pounds.

Ling cod also opened at Cook Inlet with a 52,500-pound catch limit. The Inlet also opened July 1 for rockfish with a 150,000-pound harvest.

Read the full story at National Fisherman

Fish Out of Water: How Capture Affects Sablefish Health, Reflexes, and Survival

July 13, 2021 — The following was released by NOAA Fisheries:

Sablefish is a high-quality, deepwater fish that supports a valuable Alaska fishery. The fishery has seen dramatic changes in recent years. The highest abundance of young  sablefish in decades arrived with warming temperatures. At the same time, a rapidly-growing pot fishery has emerged alongside traditional hook-and-line fishing in the Gulf of Alaska. A new study shows that, with careful handling, they are able to withstand the stresses of capture on hook-and-line gear—but their.reflexes could be impaired.

In the directed sablefish fishery, commercial fishermen must retain all sablefish (regardless of size) until individual fishing quotas are filled. Then, all remaining catch is returned to sea. To accurately assess the fish stocks to set sustainable catch limits, managers need to estimate how many of the fish caught and released will survive.

A new collaborative study provides information essential for sustainable management of  the sablefish fishery as it evolves and adapts to changing conditions. NOAA Fisheries  Alaska Fisheries Science Center scientists teamed up with a veterinary professor at Oregon State University. They looked at how the stress of capture and time out of water affects the health and reflexes of sablefish, and whether that contributes to delayed mortality. Their findings provide a better understanding of mortality after release from pot fishing. They provide information essential for the North Pacific Fishery Management Council to evaluate the implications of proposed “careful release” of small sablefish before fishing quotas are filled.

Read the full release here

Alaska pollock: Alaska product now 86 percent of U.S. consumption

July 6, 2021 — The Bering Sea TAC for pollock has been ratcheted back to 1.375 million metric tons — that’s down from last year’s 1.425 million and close to what it was set at in 2019. In the Aleutian Islands harvest area, the quota has been set at 19,000 metric tons, unchanged from last year. For the Gulf of Alaska waters, the TAC fell from the 115,930 metric tons to 113,227 metric tons for 2021.

In May, the U.S. Department of Agriculture announced the purchase of $159.4 million in domestic seafood and agricultural products. Of that, seafood will account for $70.9 million. Alaska pollock products have always been high on the list of purchases by the USDA for school lunch and other institutional food programs, and pollock contracts in 2021 will tally up to $20 million.

Also in May, data released by the National Fisheries Institute indicated that pollock pulled ahead of tilapia to rank fourth place in domestic seafood consumption. Though shrimp, salmon and canned tuna continue to rank above pollock, NFI noted that consumption of pollock products increased by a quarter pound per capita from 2018 to 2019. Meanwhile, the NFI research conducted for the Seattle-based Genuine Alaska Pollock Producers found that wild Alaska pollock products comprised 86 percent of that national increase from 2018 to 2019.

Read the full story at National Fisherman

Central Gulf of Alaska Marine Heatwave Watch

June 17, 2021 — The following was released by NOAA Fisheries:

Temperatures are above the long-term average, but remain below marine heatwave conditions. These conditions are wavering near conditions observed in 2017 and 2018 for this season. Recent warming has been sporadic in the region with warmer conditions in the western sector and cooler conditions near Kodiak Island and eastward.

Why monitor marine heatwaves in the Gulf of Alaska?

Climate change is impacting the ecosystem of the Gulf of Alaska and effects are expected to magnify as warming increases over the coming decades. Over the past 6 years, the Gulf of Alaska has been experiencing extended and severe marine heatwaves. From June 2014 to January 2017 the North Pacific, including the Gulf of Alaska, had increased temperatures over a region of approximately 2 million km2 with more than 2.5 °C warmer than the long-term mean (1982–2012). The 2014–2016 marine heatwave changed the ecology of the region with reduced phytoplankton production, a shift in zooplankton production from large lipid-rich (higher fat) copepods to small lipid-poor copepods, and reduced forage fish populations such as capelin (Mallotus villosus) and Pacific sand lance (Ammodytes hexapterus). Species at the top of the marine food chain experienced lower recruitment (reduced juvenile survival) and increased mortality in fishes, birds, and mammals.

We will provide monthly updates on marine heatwave conditions in the Gulf of Alaska via social media @NOAAFisheriesAK and via this webpage. We will share what we are learning about current conditions in the Gulf of Alaska this year.

Read the full release here

Surveys Will Collect Data Crucial for Managing Alaska Fisheries and Monitoring Alaska Marine Ecosystems

May 28, 2021 — The following was released by NOAA Fisheries:

Scientists from NOAA’s Alaska Fisheries Science Center and partners have begun another busy survey season off the Alaska coast. Eight surveys are planned in the Gulf of Alaska, Bering Sea, and Chukchi Sea to monitor fish, crab, marine mammals, and marine ecosystems.

“Information collected as part of these surveys and other available data on oceanographic conditions, fisheries, and protected species are integrated to provide a more comprehensive understanding of Alaska marine ecosystems to support sustainable resource management and conservation,” said Robert Foy, science and research director, NOAA Fisheries, Alaska Fisheries Science Center.

During surveys, NOAA scientists sort, weigh, and count species collected by longline or trawl. They will also collect specimens and data on various species, as requested by cooperating scientists, agencies, and institutions.

Longline Survey of the Bering Sea and Gulf of Alaska

The annual longline survey is an important data source for producing timely resource assessments for the North Pacific Fishery Management Council. The 2021 survey continues a 44-year time-series of sablefish and other groundfish species stock trends. The survey is being conducted from May 28 to September 1 aboard the F/V Alaskan Leader, which is a 150-foot freezer longliner.

The 2021 survey begins in Dutch Harbor and makes port calls in Ketchikan, Yakutat, Cordova, and Kodiak. The survey samples the Gulf of Alaska every year, the Bering Sea in odd-numbered years, and the Aleutian Islands in even-numbered years. It surveys at depths from 200 to 1,000 meters. The survey produces catch rates, species compositions, length, and age data for:

  • Sablefish
  • Pacific cod
  • Several rockfish species
  • Shortspine thornyhead
  • Sharks
  • Grenadiers
  • Greenland turbot

The survey also tags and releases a subsample of sablefish, shortspine thornyhead, and Greenland turbot for studying movement behavior and life history. The survey operates on a cost-recovery basis: proceeds from the catch are sold to offset the cost of the vessel charter.

Read the full release here

ALASKA: Copper River salmon fishery brings season’s first catches, camaraderie — and hope

May 25, 2021 — Last year’s weak sockeye salmon run and the global pandemic created a wave of uncertainty and fear here for people in Cordova. This year, with two Copper River commercial openers under their belt, Cordovans are hopeful.

The usually soggy coastal fishing community is delicately positioned on the eastern edge of Prince William Sound and nestled at the bottom of the Chugach Mountains.

On Tuesday, following the first opener of the year, people took turns snatching pieces of freshly caught Copper River king salmon from the grill — a celebratory first fish tradition that’s rougher around the edges compared to Seattle’s red carpet fanfare.

“2020 was miserable,” third-generation fisherman Matt Honkola said. “To get back to the way things were, I think all of our spirits, we needed this.”

Each summer, king, sockeye and coho salmon return to the Copper River — a roughly 300-mile-long waterway that extends from the Gulf of Alaska east of here north to the Wrangell Mountains.

Read the full story at the Anchorage Daily News

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