Saving Seafood

Research on environmental DNA in salmon monitoring could have economic benefits

January 22, 2019 — Each year wild salmon return to the streams in which they were born to spawn and die. Salmon fishery managers must ensure that adequate numbers of fish return each year to spawn and produce offspring for future harvest. It is expensive and labor intensive to count returning salmon, especially in remote streams.

Researchers at the University of Alaska Southeast, Auke Bay Laboratories, Oregon State University, the UK and China have found that  DNA collected in water samples from Auke Creek can be used to infer the number of salmon passing upstream to spawn. Two of the authors on the published paper who contributed to the research are former UAS Biology students now in graduate school, Josh Russell and Donovan Bell. Russell is currently enrolled in the UAF College of Fisheries and Ocean Sciences program, and Bell is in the biology graduate program at the University of Montana.

This form of DNA, termed “environmental DNA” or “eDNA”, can be collected from water samples. Water samples are then filtered and probed using molecular genetic techniques to quantify the amount of DNA belonging to each salmon species, providing insights into the number of salmon upstream.

Read the full story at PHYS.org

CALIFORNIA: There will be no commercial herring catch in San Francisco Bay this year

January 21, 2019 — During a brief period between December and February, schools of Pacific herring arrive in San Francisco Bay to spawn in waves, laying their eggs in the intertidal zones from Paradise Cove in Marin to Coyote Point in San Mateo, with stops along the way in San Francisco, Alameda and Richmond.

When the herring arrive in the bay, Raylene Gorum, who is organizing the sixth annual Sausalito Herring Celebration on Jan. 27, is one of the first to know as a houseboat resident in the Sausalito harbor. “The harbingers are the sea lions,” said Gorum, who heard the first one barking last week, while cormorants and seagulls were nearby, waiting to pounce.

Read the full story at the San Francisco Chronicle

US, China are drivers of push for more salmon production

January 18, 2019 — Demand for salmon continues to be strong globally, but the dual markets of the United States and China have salmon sellers licking their lips at the massive opportunity they represent.

Salmon’s position as a healthy staple is driving interest in the species worldwide, but the low rates of per capita consumption in the U.S. and China show that there’s still plenty of room to grow the markets in both countries, a panel of salmon experts speaking on Wednesday, 16 January at the Global Seafood Market Conference in Coronado, California, U.S.A., agreed.

Natural limits in production from wild-catch salmon fisheries, and more complicated set of restrictions on farmed salmon production, means much of that demand likely won’t be met anytime soon. As a result, prices for salmon are rising. The average price of a pound of salmon in September 2015 was USD 4.12 (EUR 3.62) in 2015 and three years later, in September 2018, the price had risen to USD 5.80. (EUR 5.09).

“That’s the outcome of that gap between supply and demand,” Andy Wink, the executive director of the Bristol Bay Regional Seafood Development Association, said.

Wink is especially bullish on the potential for the United States to become a bigger consumer of salmon, even though it already represents the largest salmon market in the world.

Read the full story at Seafood Source

Aquaculture Rule Changes up for Public Comment in Maine

January 14, 2019 — Maine fisheries managers are looking to make a number of changes to aquaculture rules in the state, and are asking for feedback from the industry and the public about the potential changes.

The Maine Department of Marine Resources is considering a proposal that would make changes to the leasing procedures it uses for farmers of seafood. The new rules would also clarify that an emergency lease could be used when the safety of consumers is threatened, and they would establish minimum lease maintenance standards.

Read the full story from the Associated Press at U.S. News

Oregon begins killing sea lions after relocation fails

January 11, 2019 — Oregon wildlife officials have started killing California sea lions that threaten a fragile and unique type of trout in the Willamette River, a body of water that’s miles inland from the coastal areas where the massive carnivorous aquatic mammals usually congregate to feed.

The state Department of Fish and Wildlife obtained a federal permit in November to kill up to 93 California sea lions annually below Willamette Falls south of Portland, Oregon, to protect the winter run of the fish that begin life as rainbow trout but become steelhead when they travel to the ocean.

As of last week, wildlife managers have killed three of the animals using traps they used last year to relocate the sea lions, said Bryan Wright, project manager for the Oregon Department of Fish and Wildlife’s marine resources program.

The adult male sea lions, which weigh nearly 1,000 pounds (454 kilograms) each, have learned that they can loiter under the falls and snack on the vulnerable steelhead as the fish power their way upriver to the streams where they hatched.

Read the full story at the Associated Press

ALASKA: Cook Inlet sockeye forecast improves; kings closed in North

January 10, 2019 — After two disappointing sockeye seasons in a row, the 2019 season may look up for Upper Cook Inlet commercial fishermen.

The Alaska Department of Fish and Game’s sockeye salmon forecast, published Jan. 4, predicts a total run of 6 million sockeye to Upper Cook Inlet stream systems, with an expected commercial harvest of 3 million and 1 million for sportfishing and subsistence harvest.

If the forecast proves true, the run will be nearly double the 2018 run of 3.1 million.

The Kenai River, the largest sockeye-producing river in the region, is projected to receive a run of about 3.8 million sockeye, the majority of which are the 1.3 age class (one year in freshwater, three years in saltwater).

The Kasilof River, the second-largest producer, is projected to see about 873,000 sockeye come back, with a slight majority in the 1.3 age class.

The Kenai’s forecast is greater than its 20-year average of 3.5 million, while the Kasilof’s is behind its 20-year average of 979,000 fish.

Read the full story at the Alaska Journal of Commerce

New Pacific Salmon Treaty cuts chinook catch

January 9, 2019 — The new Pacific Salmon Treaty went into effect on the first of the year after the treaty’s last 10-year iteration expired on its own terms on 31 December.

The Pacific Salmon Treaty is renegotiated every decade between the United States and Canada to govern salmon catch, research, and enhancement in Alaska, Oregon, Washington, and British Columbia.

The Alaska Department of Fish and Game made public last week the sections of the treaty that will directly affect Alaskan salmon fisheries, which deal with Transboundary Rivers, Northern British Columbia and Southeastern Alaska, and Chinook salmon.

In an attempt to battle a dramatic multi-year drop in Chinook stocks off of the Pacific coast, the countries agreed to cut their catch of Chinook salmon, with a reduction of up to 12.5 percent in Canada and up to 7.5 percent in the United States.

Some in the industry are not pleased with the new treaty.

Read the full story at Seafood Source

Japanese seafood giants invest in land-based aquaculture

January 8, 2019 — Two of Japan’s largest seafood companies, Maruha Nichiro and Nippon Suisan Kaisha, or Nissui, soon expect to begin commercial shipments of fish farmed in land-based facilities in Japan, reports Nikkei.

At a land-based salmon farm in the town of Yuza, in the northwestern prefecture of Yamagata, Maruha Nichiro farms a variety of salmon known locally as sakuramasu. Maruha, which developed the system with valve maker Kitz, expects to ship its first batch of sakuramasu soon.

Maruha president Shigeru Ito said he aims to market the fish as a Japanese product in a country that relies on imports for 90% of its salmon consumption.

Meanwhile, Nissui plans to begin inland farming of mackerel next year, according to Nikkei, aiming to become the first company in Japan to sell farmed mackerel commercially. The key goal of the project is to cut costs by teaming up with a business in another industry that has a water treatment technology.

Read the full story at Undercurrent News

Scientists in Alaska are tracking fish by DNA

January 7, 2019 — Have you ever thought about testing your DNA through companies like 23andMe or Ancestry.com?

Geneticists here in Alaska are using that same technology on fish, but they’re not looking for their ancestors. Instead, they’re using it to trace back where marine species are born and where they’re caught.

The administrative headquarters for the Alaska Department of Fish and Game off of Raspberry Road in Anchorage is best known as an office building, but tucked inside is one of the most advanced genetics labs on the Pacific Rim.

“We have one instrument in particular that is the same instrument that is used by 23andMe and Ancestry.com,” said lab supervisor Heather Hoyt.

But unlike those organizations, its not human DNA that Hoyt and her team are testing. They’re focused mainly on fish.

Read the full story at KTVA

ALASKA: Harvesting the haul

January 4, 2018 — After a steep drop in 2016, seafood harvesting employment rebounded in 2017, growing 8.3 percent and hitting a record of 8,509 average monthly jobs in the state of Alaska.

The employment growth was widespread, covering most species and regions, which was a departure from previous years when certain fisheries’ or regions’ growth tended to offset losses elsewhere.

The 8.3 percent growth for seafood harvesting in 2017 was the largest in percent terms among Alaska industries. Health care, which has been marked by strong job growth for decades and has been one of the few industries to grow throughout the state recession, grew by just 2.3 percent.

Summer and fall brought impressive growth in harvesting jobs after a weak start to the year. Most of the year’s growth came during the summer. July has always been the seafood harvesting peak, and in 2017 it went up by another 634 jobs, bringing the July total to 24,459.

The biggest jumps came on the edges of the summer, however. June, September, and October each gained more than 1,000 jobs from 2016’s levels. June’s employment grew the most, up 1,877 jobs from June 2016.

The year’s few losses came in the early months. January, February and March levels were all down from the year before. Those months are more important for crab fisheries than other species, which is why crab harvesting was one of the few fisheries that lost jobs in 2017.

Read the full story at National Fisherman