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Tracking Sea Creature Stress Related to Wind Turbine Construction

December 5, 2024 — With hundreds of towering offshore wind turbines planned to be built in the waters south of Martha’s Vineyard, a team of local scientists is working to find out if the construction noise will hurt ocean life.

As regulators consider projects up and down the east coast, researchers at the Woods Hole Oceanographic Institution have been simulating the booming sound of pile driving turbine monopiles to see if it has an effect on a variety of species. So far, results have been mixed.

While there’s been research into how turbine construction impacts the endangered right whale, the ocean’s small ground critters have largely been left to fend for themselves, said Aran Mooney, an associate scientist at WHOI.

“This is a knowledge gap, and it could really impact the fisheries,” he said.

The research team has been replicating construction and observing its effects on lobsters, sea scallops, flounder, squid and black sea bass. Mr. Mooney’s work was contracted by the Bureau of Ocean Energy Management, the federal agency that oversees offshore wind energy.

In the past few years, the WHOI scientists have determined the impact the noise has on squid by playing an audio recording of pile driving as they were enclosed in a tank.

“The sound profiles are pretty much the same as what we see in offshore wind, actual construction.” Mr. Mooney said.

Read the full story at the Vineyard Gazette

Mid-depth waters off the United States East Coast are getting saltier

July 7, 2022 — A new study led by Woods Hole Oceanographic Institution shows a significant increase in frequency of warm saltwater intrusions from the deep ocean to the continental shelf along the Middle Atlantic Bight, which extends from the Gulf of Maine to Cape Hatteras, North Carolina. Using data collected from NOAA’s National Marine Fisheries Service Ecosystem Monitoring program, as well as data collected from the fishing industry, the study’s results show that ocean exchange processes have greatly changed over the past 20 years in this region.

I think the reason the paper is so important is because it quantifies an ocean process changing, potentially as a direct result of ocean warming and more stratification,” said Glen Gawarkiewicz, WHOI senior scientist and paper corresponding author. “These findings could also have major shelf ecosystem implications. Given the increased frequency of mid-depth salty intrusions along the Mid-Atlantic Bight, it will be necessary to properly resolve this process in numerical simulations in order to account for salt budgets for the continental shelf and slope”

“This is a tremendous opportunity for dialogue with the fishing community, helping them recognize these mid depth intrusions once they log a profile. Then, they can use it to decide where to fish and focus the bulk of their work,” Gawarkiewicz said. “Future work is necessary to determine how the increasing frequencies of this important process may be affecting continental shelf heat and salt balances as well as broader impacts to the continental shelf ecosystem. This study is valuable in quantifying processes that may be hastening that ecosystem realignment, especially when addressing things like food insecurity.”

Read the full story at Phys.org


Evidence Bolsters Classification of a Major Spawning Ground for Atlantic Bluefin Tuna Off the Northeast U.S.

March 4, 2022 — The Slope Sea off the Northeast United States is a major spawning ground for Atlantic bluefin tuna (Thunnus thynnus), a new paper affirms. This finding likely has important implications for population dynamics and the survival of this fish, according to the paper, “Support for the Slope Sea as a major spawning ground for Atlantic bluefin tuna: evidence from larval abundance, growth rates, and particle-tracking simulations,” published in the Canadian Journal of Fisheries and Aquatic Sciences.

“Overall, our results provide important supporting evidence that the Slope Sea is a major spawning ground that is likely to be important for population dynamics,” the paper states. Spawning in the Slope Sea “may offer the species additional resilience in the face of both harvesting and climate change,” the paper adds.

The paper presents larval evidence supporting the recognition of the Slope Sea as a major spawning ground, including that larvae collected in the Slope Sea grew at the same rate as larvae collected in the Gulf of Mexico, indicating that this region is good larval habitat.

“In comparison to everything else we know about this species, the Slope Sea is a perfectly good place to be born as a larva,” said lead author Christina Hernández, who was a doctoral student in the Massachusetts Institute of Technology (MIT) – Woods Hole Oceanographic Institution (WHOI) Joint Program in Oceanography/Applied Ocean Science and Engineering at the time of the study.

Read the full story at the Woods Hole Oceanographic Institution

Resilient Woods Hole releases new, interactive tools to engage community in planning for climate change

February 22, 2022 — ResilientWoodsHole (RWH), a public-private initiative led by local science institutions, today released new, interactive website tools to further engage the local community in its collective goal of securing a climate-resilient future for the coastal village of Woods Hole.  An updated website, ResilientWoodsHole.org, provides status updates, news coverage and reports on these efforts.  A new stakeholder survey, for individuals to learn more about how they can offer input, is now on the website.

Also new are three interactive maps for public engagement. Each map highlights a different aspect of Woods Hole:  Important Features, Adaptation and Vision, and Flooding Risk. People can click on any of these three maps and input comments and suggestions in each of these key areas.

Links to both the survey and interactive maps can be found on the RWH website.

A recent public workshop held by RWH engaged more than 100 local community members in a dialogue about coastal flooding risks, identified village flood pathways and vulnerabilities, and discussed long-term adaptation strategies.

“Building on the success of our first visioning workshop, it is clear that the future of Woods Hole as a seaside community, blue economy driver, and home to world renowned ocean research organizations, lies collectively in our hands,” said Leslie-Anne McGee, manager of ResilientWoodsHole and a project manager at Woods Hole Oceanographic Institution. “Working with the community, it is our goal to prepare for sea-level rise and increasing extreme weather events, and jointly develop solutions.”

This effort is funded through the Massachusetts Office of Coastal Zone Management (CZM),’s Coastal Resilience Grant Program and matching funds from Woods Hole Oceanographic Institution, Marine Biological Laboratory, and NOAA Fisheries.

Read the release from the Woods Hole Oceanographic Institution

 

Study Finds Growing Potential for Toxic Algal Blooms in the Alaskan Arctic

October 6, 2021 — Changes in the northern Alaskan Arctic ocean environment have reached a point at which a previously rare phenomenon—widespread blooms of toxic algae—could become more commonplace. These blooms potentially threaten a wide range of marine wildlife and the people who rely on local marine resources for food. That is the conclusion of a new study about harmful algal blooms of the toxic algae Alexandrium catenella published in the journal Proceedings of the National Academy of Science. Microscopic algae in the ocean are most often beneficial and serve as the base of the marine food web. However, some species produce potent neurotoxins that can directly and indirectly affect humans and wildlife. 

Dormant Cysts Could Seed a Toxic Bloom

The study was led by scientists at the Woods Hole Oceanographic Institution (WHOI) in collaboration with colleagues from NOAA’s Northwest Fisheries Science Center and researchers in the United States, Japan, and China. It looked at samples from seafloor sediments and surface waters collected during 2018 and 2019. Samples were taken in the region extending from the Northern Bering Sea to the Chukchi and Beaufort Seas north of Alaska. The sediment samples allowed the researchers to count and map Alexandrium cysts. The cysts are a seed-like resting stage that lies dormant in the seafloor for much of the year, germinating or hatching only when conditions are suitable. The newly hatched cells swim to the surface and rapidly multiply using the sun’s energy. This produces a “bloom” that can be dangerous due to the family of potent neurotoxins, called saxitoxins, that the adult cells produce.

When the algae are consumed by some fish and all shellfish, those toxins can accumulate to levels that can be dangerous to humans and wildlife. In fish, toxin levels can be high in digestive and excretory organs (e.g., stomach, kidney, liver), but are very low in muscle and roe.  Although fish can be potential toxin vectors, the human poisoning syndrome is called paralytic shellfish poisoning. Symptoms range from tingling lips, to respiratory distress, to death. The toxin can also cause illness and death of marine wildlife such as larger fish, marine mammals, and seabirds. This is of particular concern for members of coastal communities, Alaskan Native Villages, and Tribes in northern and western Alaska who rely on a variety of marine resources for food.

Read the full article at NOAA Fisheries

 

 

‘No easy answers’ WHOI building project designed for sea-level rise

August 26, 2021 — The Woods Hole Oceanographic Institution is one of the leading organizations focused on ocean research, exploration and education. Its vessels roam the world’s oceans, their researchers explore the deepest oceanic canyons and the shallows of a salt marsh.

For an institution that has experienced, researched and documented the impacts of climate change on the ocean, it follows that when it contemplated building a new $100 million dock and waterfront support facilities, WHOI would incorporate sea-level rise into their planning.

“This is critical infrastructure to what we do,” said Rob Munier, WHOI vice president for marine facilities and operations. “Others can contemplate alternatives, including retreat (from the waterfront), but we have to be there. It’s part of our ability to do our mission.”

Read the full story at the Cape Cod Times

New buoy could help scientists protect whales from wind farm construction off the coast of Ocean City

August 5, 2021 — Each day, they appear as colorful blips on a black graph. The dispatches from a new buoy 23 miles off the coast of Ocean City, Maryland, could be nothing more than noise from passing ships or rough waves. But they could be whales.

It’s up to researchers at the University of Maryland Center for Environmental Science to tell the difference.

In groups of three, the small sound waves might be sei whales. A symphonic pattern of notes could be humpbacks — the “songbirds of the sea,” said Amber Fandel, a faculty research assistant with the center’s Chesapeake Biological Laboratory.

The buoy’s algorithm, developed by researchers at the Woods Hole Oceanographic Institution in Massachusetts, often thinks it’s discovered passing baleens. But the discerning eye of a researcher knows best. The hydrophone aboard the bright yellow and blue buoy, with brethren up and down the East Coast, hasn’t tracked a whale since it was plopped in the water in late May, though some are expected as the fall draws closer, Fandel said.

Lately, the scientists’ work has taken on fresh urgency. The buoy is located in the 80,000-acre lease area carved out for the MarWin wind farm. Construction on the win farm is likely to start sometime in 2024, officials said, and could present dangers to marine mammals.

Read the full story at The Baltimore Sun

Large vessels failing to obey speed limits to protect endangered whales, report finds

July 22, 2021 — Nearly 90 percent of large vessels traveling in some conservation areas along the East Coast violated mandatory speed limits established to protect endangered North Atlantic right whales, according to a new report.

The findings raised questions about the need for stricter enforcement of federal rules to protect right whales, whose numbers have fallen by about 25 percent over the past decade to roughly 360. Vessel strikes and entanglements in fishing gear have been the primary cause of death and serious injuries.

“Vessels are speeding, North Atlantic right whales are dying, and there’s not enough accountability,” said Whitney Webber, a campaign director at Oceana, an advocacy group, which released the report on Wednesday. “Oceana’s analysis shows that speeding vessels are rampant throughout North Atlantic right whales’ migration route, all along the East Coast, and in both mandatory and voluntary speed zones.”

Between 2017 and 2020, the report found that nearly 90 percent of vessels 65 feet or larger failed to reduce their speeds to 10 knots or less in the required speed zones along the coast from Wilmington, N.C., to Brunswick, Ga., near the whales’ calving grounds. Nearly 80 percent of the vessels also failed to comply with speed limits along the coasts of New York and New Jersey, while more than half of large vessels failed to comply near the entrance of Delaware Bay.

Read the full story at The Boston Globe

Slow Zone Southwest of Martha’s Vineyard to Protect Right Whales

July 6, 2021 — The following was released by NOAA Fisheries:

NOAA Fisheries announces a new voluntary right whale Slow Zone.  On July 2, 2021, the Woods Hole Oceanographic Institution acoustic buoy detected right whales southwest of Martha’s Vineyard.  This Slow Zone is in effect through July 18, 2021.

Mariners are requested to route around this or transit through it at 10 knots or less.

Slow Zone Coordinates:

Southwest of Martha’s Vineyard, July 2-18, 2021

41 23 N
40 44 N
071 16 W
070 23 W

See the coordinates for all the slow zones currently in effect.

Active Seasonal Management Areas 

Mandatory speed restrictions of 10 knots or less (50 CFR 224.105) are in effect in the following areas:

Great South Channel, April 1 – July 31

Find out more and get the coordinates for each mandatory slow speed zone.

Give Right Whales Room

North Atlantic right whales are on the move along the Atlantic coast of the U.S. NOAA is cautioning boaters and fishermen to give these endangered whales plenty of room. We are also asking all fishermen to be vigilant when maneuvering to avoid accidental collisions with whales and remove unused gear from the ocean to help avoid entanglements. Commercial fishermen should use vertical lines with required markings, weak links, and breaking strengths.

Right Whales in Trouble

North Atlantic right whales are protected under the U.S. Endangered Species Act and the Marine Mammal Protection Act. Scientists estimate there are only about 400 remaining, making them one of the rarest marine mammals in the world.

North Atlantic right whales are NOAA Fisheries’ newest Species in the Spotlight. This initiative is a concerted, agency-wide effort to spotlight and save marine species that are among the most at risk of extinction in the near future. 

In August 2017, NOAA Fisheries declared the increase in right whale mortalities an “Unusual Mortality Event,” which helps the agency direct additional scientific and financial resources to investigating, understanding, and reducing the mortalities in partnership with the Marine Mammal Stranding Network, Canada’s Department of Fisheries and Oceans, and outside experts from the scientific research community.

Read the full release here

Spencer Fullerton Baird: Founder of the Woods Hole Laboratory and Fisheries Science

June 18, 2021 — The following was released by NOAA Fisheries:

Spencer Fullerton Baird was born in Reading, Pennsylvania in 1823. Time spent as a child exploring the countryside with his brother fueled his passion for natural history. In 1838 he met John James Audubon, who gave him part of his bird collection, and encouraged young Baird’s interest in ornithology and collecting specimens.

He attended Dickinson College, receiving his bachelor’s degree in 1840. Baird then enrolled in the College of Physicians and Surgeons in New York for a year, but decided he was not cut out for medical practice. He returned to Carlisle, Pennsylvania to continue his studies at Dickinson College. He received a master’s degree in 1843 and an honorary doctor of physical science degree in 1856

Baird was offered a teaching position at the college in 1845 as a professor of natural history. Popular with students for taking them into the field to study nature, he became chair of both the natural history and chemistry departments in 1848. He also served as librarian and curator of the college’s natural history collections.

Read the full release here

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