Saving Seafood

Video Research Investigates Effects of Shellfish Farming on West Coast Nearshore Habitat

October 2, 2020 — The following was released by NOAA Fisheries:

The underwater video scene is full of life. A school of sinewy fish darts across the screen while a crab rummages along the seafloor. A flatfish, camouflaged like the sandy bottom, doesn’t seem to mind when the crab crawls over its back to approach an oyster.

Scientists from NOAA Fisheries’ Northwest Fisheries Science Center are collecting this video and more like it. They want to assess how marine life uses, and may even benefit from, habitat in and around farms growing oysters and other shellfish. They are teaming up with Microsoft to use computers and artificial intelligence to scan hours of video within seconds for different species of interest.

This particular video reveals the underwater landscape of Hama Hama shellfish farm in Hood Canal, Washington, one of many partners assisting with the study. Other local shellfish growers and the Pacific Shellfish Institute are also taking part.

“We collected the video as one way to assess how fish and invertebrates use shellfish aquaculture habitats compared to areas of the nearshore that don’t have aquaculture,” said Beth Sanderson, a Northwest Fisheries Science Center research scientist. Researchers collected the video over the past several years to assess the way species use, and feed in, different habitat types.

Shellfish farming is one of the most valuable parts of the Northwest aquaculture industry. It generated close to $100 million annually for the regional economy and provides close to 1,500 jobs prior to the pandemic. Shellfish farms occupy more than 25,000 acres in the Northwest. Researchers and managers want to understand how farming practices affect marine life in the shallow and highly productive nearshore waters where oysters and other shellfish grow.

“We’ve seen basically all of the fish you’d expect in the nearshore—herring and other forage fish, varieties of perch and sculpin, juvenile salmon, along with diving ducks, harbor seals and more,” Sanderson said. “There’s an amazing variety of life in the shallows of the Pacific Northwest, and we are seeing for the first time how many of these species use habitats within and near shellfish farms.”

Read the full release here

Council OKs At-Sea Monitoring For All NE Groundfish Trips

October 2, 2020 — The New England Fishery Management Council on Wednesday approved a 100% target for the at-sea monitoring of sector-based groundfish vessels, but stipulated that the requirement will be contingent upon federal funding, at least for now.

The council voted via webinar to approve Amendment 23 to the Northeast Multispecies Fishery Management Plan. If the measure is approved by NOAA Fisheries, it could go into effect in early 2022. Under the amendment, the monitoring of fish landed and discarded at sea could be done with either human monitors or video cameras.

The vote capped three years of discussion and months of public hearings on how to best improve groundfish fishery regulation in New England. Environmental groups such as the Conservation Law Foundation charge that strong oversight is needed to maintain a sustainable fishery. Fishermen for the most part have expressed grave concern about the cost, which could be as high as $700 per vessel per day.

The measure as passed states that the monitoring program will be contingent upon full federal funding for the first four years of the program. In year five, the federal funding target would be reduced. A review process was also put in place.

Read the full story at WBSM

Behind the Scenes of the Most Consumed Seafood

October 1, 2020 — The following was released by NOAA Fisheries:

Shrimp, tuna, clams—the most popular seafood items in the United States are familiar names to both seafood lovers and the occasional consumer. You may have wondered about the environmental impact of consuming more of a popular product.

We’ve got good news: U.S. seafood is sustainable seafood! Thanks to our robust quotas, retention limits, and other management measures, you can be confident that U.S. seafood products were harvested sustainably.

Around 75 percent of the shrimp harvested in the United States comes from the Gulf of Mexico. Three species dominate the catch there: white shrimp, pink shrimp, and brown shrimp. Each of these species currently have population levels above the targets set by scientists.

Federally permitted shrimp fishermen are required to report their landings. They also provide information on fishing effort, including the number of fishing trips they take. The data is used in shrimp stock assessments and to support the sustainable management of red snapper. Depending on the gear they use, shrimpers must also use special equipment that reduces incidental catch, including sea turtle bycatch.

Read the full release here

Aquaculture Supports a Sustainable Earth

October 1, 2020 — The following was released by NOAA Fisheries:

The United Nations maintains 17 Sustainable Development Goals that serve as a framework for international cooperation to help people and the planet thrive.

A recent study from the UN shows that aquaculture can improve food security and nutrition by increasing the amount of seafood available for people to eat. If done correctly, aquaculture increases food production, boosts economic growth in coastal and rural areas, and can help keep waterways clean.

Explore how aquaculture fits into the UN’s sustainability goals:

1. Shellfish Beds Help Restore Our Waterways

Shellfish such as oysters, clams, and mussels are not just a beach barbecue staple; they serve an important role in waterways. However, in some areas these shellfish have been largely lost from coastal ecosystems. Restoring and farming shellfish beds allows these bivalves to clean the water as they filter feed, serve as habitats for smaller organisms, and can even help prevent shoreline erosion. Preserving ecosystems, safeguarding biodiversity, and reversing land degradation are significant components of sustainable aquaculture.

Read the full release here

HAWAII: NOAA seeking volunteers for fish count

September 30, 2020 — The Pacific Islands Fisheries Science Center is launching a new citizen science project called OceanEYEs. We are seeking volunteers to help find Deep 7 bottomfish in underwater videos.

A student in the Young Scientist Opportunity program and our scientists have partnered with Zooniverse.org to develop a user-friendly web page called OceanEYEs. There, citizen scientists can help review images from our annual bottomfish survey, tagging and identifying all the fish that they see. Scientists can then use those data to train advanced artificial intelligence (AI) tools, to look at different ways of counting fish in video. The data can also be used as information for stock assessments.

The images are collected every year during the Bottomfish Fishery-Independent Survey in Hawaii (#BFISH) using state of the art stereo-camera systems. The survey provides an estimate of the number of “Deep 7” bottomfish. That’s a group of seven species of fish that have both economic and cultural value to the islands. The data from this survey are used in the Deep 7 stock assessment to provide managers with the best information to make management decisions. That includes annual commercial fishery catch limits.

Read the full story at The Garden Island

Predator-prey interaction study reveals more food does not always mean more consumption

September 30, 2020 — Scientists at the NOAA Northeast Fisheries Science Center have developed an unusually rich picture of who is eating whom off the Northeastern United States. The findings, published recently in Fish and Fisheries, provide a close look at fish feeding habits for 17 fish species, predators, and their prey.

The predators are divided into 48 predator-size categories, and 14  species. Fish predators included Atlantic cod, Atlantic herring, haddock, goosefish, pollock, spiny dogfish, winter flounder, and yellowtail founder among others. Prey species included forage fish, squid, zooplankton, shrimp-like crustaceans, shellfish, brittle stars, sand dollars, and sea urchins.

“We have the largest, continuous dataset of fish feeding habits in the world at the Northeast Fisheries Science Center, and that enabled us to do a study of this scale and scope,” said Brian Smith, a food habits researcher at the center and lead author of the study. “We focused on common and important prey for the many predatory fishes of interest, and hopefully filled in some gaps in information relating prey availability to predation.”

Feeding patterns within and among different groups of fishes vary by the size of the fish, the abundance or density of the prey, and other factors. Researchers who study  need to account for this predation in their models. Few studies, however, have looked simultaneously at the feeding patterns among different groups of predatory fish—fish feeders, plankton feeders, and benthic or bottom feeders. The study also looked at how those groups interact with their prey throughout the water column.

Read the full story at PHYS.org

Wind Influences Pollock Success in the Gulf of Alaska

September 29, 2020 — The following was released by NOAA Fisheries:

For young Alaska pollock in the Gulf of Alaska, survival may depend on which way the wind blows.

A study conclusively shows for the first time that year-to-year variation in the geographic distribution of juvenile pollock in the Gulf of Alaska is driven by wind. Depending on wind direction, water movement may retain juvenile fish in favorable nursery habitats, or transport them away. Young fish that are transported to less favorable habitats are less likely to contribute to year-class strength— the abundance of adults available to the valuable Gulf of Alaska pollock fishery.

For NOAA Fisheries biologist Matt Wilson of the Alaska Fisheries Science Center, the new study addressed a longstanding question.

“When we began this research, scientists thought that lots of juvenile fish would mean a relatively strong adult year-class. But in some years our surveys found a lot of juvenile pollock, followed by a weak year class. In other years a high number of juveniles grew into a strong year class,” Wilson said. “We undertook this research to better understand why large numbers of juveniles do not always translate into a high abundance of adults.”

Wilson and co-author Ned Laman also observed that the geographic distribution of juveniles was highly variable from year to year. In some summers, a very large proportion of the juvenile population was far southwest of the main spawning grounds.

“In this study we asked: what is the cause and consequence of year-to-year geographic variability in the distribution of juvenile pollock in the Gulf of Alaska?” Wilson said.

Read the full release here

NOAA Extends Vessel Slow Speed Zone South of Nantucket to Protect Right Whales

September 29, 2020 — NOAA Fisheries announced that they are extending the vessel slow speed zone south of Nantucket due to North Atlantic right whales

NOAA initially announced the voluntary vessel speed restriction zone, or Dynamic Management Area (DMA), on August 31. The DMA was extended until September 29, and now it’s been extended again until October 9 after a New England Aquarium aerial survey observed an aggregation of whales in the area on September 24.

Read the full story at Seafood News

Maine’s CARES Act spend plan acknowledges now-approved aid isn’t enough

September 29, 2020 — Maine is among the latest states have had CARES Act spend-plans approved by NOAA, bringing the current total of states with approved plans to 12 as of 29 September.

Maine – along with Alabama, North Carolina, Rhode Island, and Virginia – have all had spend plans approved and can now begin the application process for fishery participants. The states join California, Georgia, Louisiana, Massachusetts, Oregon, and South Carolina.

Read the full story at Seafood Source

In A New Initiative, The U.S. Coast Guard Targets Illegal Fishing

September 28, 2020 — After a long absence, fish and fishery patrols are back as a U.S. Coast Guard priority. In a little-noticed event earlier this month, the U.S. Coast Guard announced a new focus on “Illegal, Unreported, and Unregulated Fishing,” sketching out a broad plan to track and, in time, start rolling back the systemic—and often State-based—depredation of seas worldwide.

While the announcement was crafted to reflect a mere status-oriented “Outlook” on the scourge of illegal, unreported and unregulated fishing, the rollout at the U.S. Coast Guard headquarters in Washington had all the trappings of a fully committed, “all-of-government” strategy. Flanked by Admiral Craig S. Faller, head of Southern Command, Tim Gallaudet, the Assistant Secretary of Commerce for Oceans and Atmosphere at the National Oceanic and Atmospheric Administration (NOAA) and Dr. Benjamin Purser, a Deputy Assistant Secretary at the State Department, the Commandant of the Coast Guard, Admiral Karl L. Schultz, put rogue fishing fleets on notice.

The “Outlook” itself heralds another foresighted Coast Guard effort to focus attention on complex but easily-ignored maritime challenges. To maritime observers, the pattern, by now, should be familiar, as the U.S. Coast Guard is using the same successful template it used to raise awareness of emerging national security issues in the Arctic and the Western Hemisphere. In essence, the Coast Guard, through its latest “Outlook,” is affirming that large-scale economic encroachment at sea and other resource-extraction activities inconsistent with international norms is a destabilizing influence that needs to be controlled. It is signaling that Coast Guard resources will begin putting their “arms around” the problem. But rather than try to do it all, America’s racing-stripe Navy has set out a compelling case for any interested party—both inside and outside of the U.S. government— to join the fight against illegal fishing.

Read the full story at Forbes