Saving Seafood

Harmful algal blooms can be lethal for humans. Scientists wonder if they cause seabird die-offs, too

July 29, 2021 — Paralytic shellfish poisoning, caused by eating seafood contaminated with toxins from harmful algal blooms, can be deadly to humans. Now, using marine samples from Unalaska, scientists are trying to understand if those harmful algal blooms could also be responsible for seabird die-offs.

There’s not much data on how saxitoxin — a harmful compound produced by algal blooms that cause PSP — spreads through the larger food web. But in July, a group of biologists with the United States Geological Survey visited Unalaska to collect samples of plants and animals in hopes of learning more about how saxitoxin levels magnify and diminish as they move through the food chain, from phytoplankton to mussels and up to seabirds.

“We don’t really know how this toxin moves through the food web,” said Sarah Schoen, a USGS wildlife biologist that recently collected marine samples in Unalaska. “There’s still a lot of unknowns, but the more information we can collect about it, the more we’ll understand it.”

Schoen said the project started about five years ago when a major heat wave, known as “the blob,” hit the ocean. Around the same time, there was a die-off of an estimated million common murres — a northern seabird — from Alaska down to California.

Read the full story at KTOO

North Carolina commercial fishermen landed less seafood in 2020

July 23, 2021 — Commercial fishermen sold nearly 20% less fish and shellfish to North Carolina seafood dealers in 2020, a decline from the previous year that’s being blamed on the state’s stay-at-home order brought on by the COVID-19 pandemic, a state agency said Friday.

A news release from the N.C. Division of Marine Fisheries says commercial fishermen sold 42.9 million pounds of fish and shellfish last year, a 19% decline from 2019 and about a 23% decrease from the previous five-year average.

The decline was linked to a 41.3% decrease in hard blue crab landings from 2019 that may have been partly due to impacts from COVID-19. The division said it heard from several fishermen who said they found it difficult to move blue crabs at the beginning of the state’s stay-at-home order when many restaurants were closed.

Read the full story at the Associated Press

Washington Hit With Historic Number of Vibrio Infections Following Major Heatwave

July 21, 2021 — The Washington Department of Health (DOH) linked the recent heatwave that left millions of shellfish dead to the historic number of vibrio cases the state has reported in July.

The state said the high temperatures and low tides of late could be the reason behind the increased rate of the disease that is related to consuming raw or undercooked shellfish. Particularly oysters contaminated with Vibrio.

Read the full story at Seafood News

Red Tide Spurs Closure Of Shellfish Areas Along Massachusetts Coast

July 20, 2021 — State regulators have closed down shellfish harvesting up and down much of the coastline “until further notice.”

In a notice distributed to shellfish constables, Division of Marine Fisheries Director Daniel McKiernan cited paralytic shellfish poison (PSP) as the cause of the closures. PSP is also known as red tide.

The affected towns are Amesbury, Beverly, Boston, Cohasset, Danvers, Duxbury, Essex, Gloucester, Hull, Ipswich, Lynn, Manchester-by-the-Sea, Marblehead, Marshfield, Nahant, Newbury, Newburyport, Peabody, Plymouth, Revere, Rockport, Rowley, Salem, Salisbury, Saugus, Scituate, Swampscott and Winthrop.

Read the full story at WBUR

Scallop harvest to decline again this year, but still strong

July 15, 2021 — Fishermen are harvesting fewer scallops off the East Coast as the population of the valuable shellfish appears to be on the decline.

Sea scallops are one of the most profitable resources in the Atlantic, and the U.S. fishery was worth more than $570 million at the docks in 2019. Fishermen harvested more than 60 million pounds that year.

But fishermen harvested about 43.5 million pounds in 2020 after a projection that they would collect more than 51 million pounds, according to National Oceanic and Atmospheric Administration data. They’re expected to harvest about 40 million pounds this year, NOAA said.

NOAA officials cautioned that the scallop population is not in peril, and 40 million pounds is still a lot of scallops. That is a higher number than any year from 2013 to 2015.

The decline in scallops stems from slowing growth in key fishing areas such as Georges Bank and the mid-Atlantic, and some disappointing production in the Nantucket Lightship Area off Massachusetts, said Teri Frady, a NOAA spokesperson. She said the fishery is still well within overfishing limits.

Read the full story from the Associated Press at The Seattle Times

Science Center for Marine Fisheries Approves $180,000 in New Funding for Fisheries Research

July 15, 2021 — The following was released by the Science Center for Marine Fisheries (SCEMFIS):

The Science Center for Marine Fisheries (SCEMFIS) has approved 5 new research projects for 2021, awarding over $180,000 in funding for finfish and shellfish projects. Approved by the Center’s Industry Advisory Board (IAB), the projects have been identified by the Center’s industry partners as addressing critical scientific needs in their fisheries.

These projects include assessing the economic impact of menhaden fisheries; developing processes for shellfish refinement; improving finfish stock assessments; mitigation proposals for surfclam hatcheries; and analyzing the age and length composition of ocean quahog.

The following projects were approved and funded:

  • Developing process and procedures for the refinement of surf clam and ocean quahog shells into calcium carbonate – Waste produced by the used shells of clams and ocean quahogs are considered environmentally hazardous; finding ways to effectively deal with it is an important sustainability issue. The project, headed by Dr. Alireza Abbaspourrad (Cornell University), will focus on turning shell waste into a value-added product, contributing to blue economy  efforts and promote sustainability. ($110,950 in funding)
  • Mid-Atlantic management track stock assessment – Led by Dr. Steve Cadrin (UMass Dartmouth), this study will update stock assessments for Atlantic mackerel, summer flounder, scup, black sea bass, bluefish, and golden tilefish. The project will improve both the understanding and effectiveness of finfish stock assessments and stakeholder involvement in finfish management. ($3,520 in funding)
  • What hatchery capacity would be needed to support surfclam fishery mitigation via seeding fishing grounds? – Currently, the United States has over 1.7 million square acres of federal waters under lease for wind energy. These wind projects will reduce access to surfclam grounds and potentially impact surfclam hatcheries and nurseries. This study, by Dr. Daphne Monroe (Rutgers University), will evaluate mitigation strategies and other ways to support fishing communities as offshore wind energy continues to expand. ($18,480 in funding)
  • Evaluation of ocean quahog aging program for providing age data for the assessment; identification of status, uncertainty, and additional research needs – Ocean quahogs are the oldest and longest-lived animals under federal management, making them particularly vulnerable to the impacts of climate change. Partnering with the Northeast Fisheries Science Center, Dr. Eric Powell (University of Southern Mississippi) and Dr. Roger Mann (Virginia Institute of Marine Science), SCEMFIS has funded a research program to improve understanding of quahog population dynamics, recruitment, and growth rates. The present project will fund a workshop to review findings and evaluate the application of SCEMFIS findings to the NMFS-NEFSC assessment program. ($29,552 in funding)
  • Menhaden economic impact and management uncertainty – Led by Dr. Thomas J. Murray (Virginia Institute of Marine Science), this project focuses on developing an economic input-output model for the menhaden fishery. The development of this model will allow management decisions to be informed by economic impacts associated with catch and catch area controls. ($34,500 in funding)

SCEMFIS is a member of the National Science Foundation’s Industry-University Cooperative Research Centers (IUCRC) program, a federal initiative to bring together academic researchers and industry members to fund projects improving our understanding of economically important issues.

About SCEMFIS
SCEMFIS utilizes academic and fisheries resources to address urgent scientific problems limiting sustainable fisheries. SCEMFIS develops methods, analytical and survey tools, datasets, and analytical approaches to improve sustainability of fisheries and reduce uncertainty in biomass estimates. SCEMFIS university partners, University of Southern Mississippi (lead institution), and Virginia Institute of Marine Science, College of William and Mary, are the academic sites. Collaborating scientists who provide specific expertise in finfish, shellfish, and marine mammal research, come from a wide range of academic institutions, including Old Dominion University, Rutgers University, University of Massachusetts-Dartmouth, University of Maryland, and University of Rhode Island.

The need for the diverse services that SCEMFIS can provide to industry continues to grow, which has prompted a steady increase in the number of fishing industry partners. These services include immediate access to science expertise for stock assessment issues, rapid response to research priorities, and representation on stock assessment working groups. Targeted research leads to improvements in data collection, survey design, analytical tools, assessment models, and other needs to reduce uncertainty in-stock status and improve reference point goals.

Crushing heat wave in Pacific Northwest and Canada cooked shellfish alive by the millions

July 12, 2021 — Amid the crushing summer heat wave that has slammed the Pacific Northwest and parts of Canada, Alyssa Gehman, a marine ecologist who lives by the sea in Vancouver, B.C., walked down to the shore to go for a swim. As expected, the beach was packed with others looking to beat the heat.

She made her way to the edge of the water. It smelled like putrid shellfish — cooking.

All around her, beds of mussels had popped open, dead. The heat beating down on the rocks had killed them, and she could see dead tissue between their shells.

A dead crab floated in the water, she said.

Gehman studies marine community ecology, but this was the first time she had seen anything of this “magnitude of mortality.” An estimated 1 billion small sea creatures — including mussels, clams and snails — died during the heat wave in the Salish Sea, off more than 4,000 miles of linear shore, according to marine biologist Chris Harley.

Record-breaking temperatures hit the Pacific Northwest at the end of June, with an all-time high in British Columbia of 121 degrees. British Columbia reported at least 719 people suffered “sudden and unexpected deaths,” three times more than what would normally occur in the province during a seven-day period.

Lisa Lapointe, the province’s chief coroner, said in a statement last week that the extreme heat probably was “a significant contributing factor” in the increased number of deaths.

Read the full story at The Washington Post

The Future of Ocean Farming

June 29, 2021 — Called regenerative ocean farming, this model involves growing shellfish and kelp in underwater gardens.

For all his life, Alaskan fisherman Dune Lankard has looked to the sea—for food, work and purpose. “I started fishing when I was five,” says Lankard, a member of the Athabaskan Eyak community, an Indigenous group from the Copper River Delta. “I really don’t have any skills beyond the ocean.”

Born in 1959, the same year Alaska became a state, Lankard has witnessed various natural and man-made disasters—including the commoditization of Indigenous peoples’ traditional fishing way of life—that have disrupted his industry and homeland. “As an Indigenous fisherman, I’ve seen it all,” he says.

In 1964, a massive magnitude 9.2 earthquake, fittingly called the Great Alaska Earthquake of 1964, triggered a swell of tsunamis that killed more than 130 people and devastated fisheries. Exactly 25 years later, an Exxon Valdez oil tanker struck Bligh Reef in the Prince William Sound, spewing 10.8 million gallons of crude oil into the sea. The spill affected 1,300 miles of water and coastline, much of which is still considered to be in recovery.

Now, Alaskan fishermen are facing another urgent problem. Alaska is already feeling the effects of climate change, as the warming oceans have wreaked havoc on ecosystems of krill, wild kelp forests, salmon and birds. That’s all on top of the lingering losses caused by the 1989 oil spill. Before the Exxon spill, the Sound’s spring run of herring totalled more than 200,000 tons returning home. Today, there are only 4,000 tons returning annually. Lankard recently sold his fishing permit after several consecutive bad seasons.

To help mitigate the effects of warming waters, Lankard is now embracing an approach known as regenerative ocean farming, which involves growing seaweed and shellfish in small underwater gardens. Once a commercial fisherman, Lankard now mostly farms kelp.

“Alaska has always been based on extraction. We’re a natural resource extraction state,” says Lankard. “What regenerative ocean farming does is create a new regenerative economy that’s based on conservation, restoration and mitigation, as opposed to more extraction of resources.”

The burgeoning concept of regenerative ocean farming was developed and named by Bren Smith, a Canadian commercial fisherman turned ocean farmer. He believes ocean farming is the new farming model of the future.

Read the full story at Modern Farmer

Crab prices explode along with rising demand

June 24, 2021 — Crab has been one of the hottest commodities since the COVID-19 pandemic forced people in 2020 to buy and cook seafood at home, and demand is even higher this year.

Crab is now perceived as being more affordable when compared to the cost to enjoy it at restaurants, said global seafood supplier Tradex, and prices continue to soar.

That’s how it’s playing out for Dungeness crab at Kodiak and hopefully, at Southeast Alaska where the summer fishery got underway on June 15.

Kodiak’s fishery opened on May 1 and 76,499 pounds have been landed so far by just eight boats, compared to 29 last year. The Kodiak price this season was reported as high as $4.25 per pound for the crab that weigh just more than two pounds on average. That compares to a 2020 price of $1.85 for a catch of nearly 3 million pounds, the highest in 30 years, with a fishery value of nearly $5.3 million.

The pulls are skimpy though, averaging just two crab per pot. Kodiak’s Dungeness stocks are very cyclical and the fishery could be tapping out the tail end of a peak. Managers say this summer should tell the tale.

Read the full story at the Alaska Journal of Commerce

NORTH CAROLINA: Coastal Resources Commission looks at permitting floating structures for aquaculture

June 21, 2021 — Shellfish growers may be able to use floating structures at their lease sites in the near future, once state officials create regulations for it.

The N.C. Coastal Resources Commission held its regular meeting Wednesday at the Beaufort Hotel on Lennoxville Road. This was the first in-person meeting the commission has had since February 2020 due the coronavirus pandemic.

During the meeting, the commission directed the N.C. Division of Coastal Management to look into drafting regulations for permitting floating structures for shellfish aquaculture leases. DCM Director Braxton Davis said he wants to come back to the CRC with drafted permitting rules at the commission’s September meeting.

Existing CRC regulations don’t allow floating structures on shellfish aquaculture leases, and any such structures found have to be removed.

N.C. Coastal Federation assistant director of policy Ana Zivanovic-Nenadovic gave a presentation to the commission on the importance of floating structures to shellfish aquaculture Wednesday.

“The current need for the industry is to have some kind of floating structure on the lease,” she said. “Most of the states that have large (aquaculture) industries allow these structures.”

Read the full story at the Carteret County News-Times