Saving Seafood

Federal study surveys spawning Atlantic Cod

March 23, 2020 — Fisheries biologists used to rely on fishermen to tell them where fish were spawning and when. Fish are attracted to specific areas at certain times of the year, and fishermen find those important spawning grounds because the fishing is easy and the females come up bursting with eggs.

“Historically, researchers try to get in a good relationship with fishermen,” said Timothy Rowell, a research biologist with the passive acoustic research group at the National Oceanic and Atmospheric Administration’s Northeast Fisheries Science Center in Woods Hole. “They have the best local knowledge of where (the fish) are aggregating and spawning.”

Although researchers still depend on fishermen, they also use ever more sophisticated technology to help them find and study fish in the immensity of the world’s oceans. That is true of a four-year $1.3 million study of spawning fish in the sprawling blocks of ocean southeast of Block Island that are zoned to build massive offshore wind farms.

NOAA, the state Division of Marine Fisheries, Woods Hole Oceanographic Institution and the University of Massachusetts Dartmouth School of Marine Science and Technology are all participating in the study, which is funded by the U.S. Bureau of Ocean Energy Management. The research is focused on what may be one of the last remaining major seasonal spawning gatherings in the Northwest Atlantic, according to the state Division of Marine Fisheries.

Read the full story at the Cape Cod Times

New tech helps scientists detect right whales off Maine’s coast

February 24, 2020 — New acoustic monitors off Maine’s coast have detected the presence of North Atlantic right whales this winter. Scientists are trying to gather new data on the endangered animals’ whereabouts.

In mid-December, scientists put a set of underwater drones in the Atlantic Ocean. One of them is charting a zigzag course to and from Maine’s coast, starting Down East and working its way southwest. It’s currently heading eastward off Portsmouth, New Hampshire.

During its cruise, the glider’s electronic ears have heard dozens of calls from finback and humpback whales and, on seven occasions, the call of the endangered North Atlantic right whale.

“We usually figure about a 10 kilometer of five-mile radius is on average where we can hear them,” said Genevieve Davis, a scientist at the National Oceanic and Atmospheric Administration. Davis is a coordinator for the project, which also includes researchers from the Woods Hole Oceanographic Institution.

Read the full story at the Bangor Daily News

Offshore Wind to Fund New Study of Right Whales

January 28, 2020 — Ørsted is funding a project to study and protect endangered North Atlantic right whale during surveys, construction, and operation of its U.S. offshore wind facilities such as Bay State Wind and Revolution Wind.

Using data collected from an aerial, unmanned glider and two sound-detection buoys, researchers from the University of Rhode Island, Rutgers University, and the Woods Hole Oceanographic Institution will examine the habitat and behaviors of right whales in the wind-lease areas awarded to Ørsted.

An estimated 400 North Atlantic right whales remain, fewer than 100 are breeding females.

The oceanographic data will help studies of additional fish species and improve forecasting for severe storms and other weather, according to Ørsted. The three-year initiative is called Ecosystem and Passive Acoustic Monitoring (ECO-PAM).

Read the full story at EcoRI

Acoustic survey to study right whales, fish around offshore wind projects

January 23, 2020 — Acoustic sensors on buoys and an undersea drone will be used to map out the movements of endangered northern right whales, marine mammals and fish around offshore wind energy sites, in a joint project with wind developer Ørsted and marine science institutions.

Ørsted on Wednesday announced the “Ecosystem and Passive Acoustic Monitoring” project is launching in cooperation with Rutgers University, the University of Rhode Island and Woods Hole Oceanographic Institution, in addition to the company’s 2019 agreement to support Rutgers research related to wind energy development.

Rutgers will supply a Slocum electric glider, an undersea probe that can operate autonomously for weeks at a time, periodically surfacing to transmit its data back via satellite link. Now widely used in oceanography, the glider technology will be a first for Ørsted, one of the pioneer companies in European offshore wind.

Read the full story at National Fisherman

Underwater pile driving noise causes alarm responses in squid

December 17, 2019 — Exposure to underwater pile driving noise, which can be associated with the construction of docks, piers, and offshore wind farms, causes squid to exhibit strong alarm behaviors, according to a study by Woods Hole Oceanographic Institution (WHOI) researchers published Dec. 16, 2019, in the journal Marine Pollution Bulletin.

“This study is the first to report behavioral effects of pile driving noise on any cephalopod, a group including squid, cuttlefish, and octopuses,” says lead author Ian Jones, a student in the Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography.

Squid use natural alarm and defense behaviors like inking, jetting, and changing color and patterns on their skin for communication and also for survival when they’re trying to avoid capture. Squids’ changeable skin gives them the ability to create extraordinary camouflage, enabling them to blend into the background and avoid becoming a meal.

Jones and his colleagues in the Sensory Ecology and Bioacoustics Lab at WHOI exposed longfin squid (Doryteuthis pealeii) to pile driving sounds originally recorded near the construction site of the Block Island Wind Farm in Rhode Island. The squid exhibited the same types of natural alarm and defense behaviors when they were exposed to the noises, but it’s what they did next that surprised the researcher team.

“The alarm behaviors occurred within the first several noise impulses, but they diminished quickly within the first minute of playback,” Jones says. “That suggests a learned lack of response to the noise, as the squid perceive the noise stimulus may not pose an immediate threat, unlike the imminent threat of a nearby predator. This phenomenon is called habituation.”

Read the full story at Science Daily

Offshore Wind May Help The Planet — But Will It Hurt Whales?

December 5, 2019 — Tail! Tail!” shouts Dr. Howard Rosenbaum, a marine biologist, before grabbing his crossbow, as we close in on a humpback whale.

Rosenbaum gets into position on the bow of the boat, stands firmly with legs apart, takes aim, and fires at the 40-foot cetacean. The arrow that he releases doesn’t have a point – it has a hollow 2-inch tip to collect skin and blubber, and a cork-like stopper to prevent it from penetrating too deeply.

“Oh, yeah!” come shouts from the small research crew. The hit looks clean. Sure enough, when they scoop the floating arrow out of the water, its tip is filled with a small white sliver of whale flesh, containing DNA that will help identify the humpback and its pod and potentially say something about its migratory patterns.

This is the sort of research that Rosenbaum, the director of the Wildlife Conservation Society’s “Ocean Giants” program, has been doing for decades around the globe. Recently, though, whale monitoring has taken on a new urgency in Rosenbaum’s own native habitat — the Atlantic waters off New York City and Long Island.

As whale populations have grown, the WCS and its collaborator, the Woods Hole Oceanographic Institution, have been monitoring them, with an eye toward mediating conflicts with the ocean’s heaviest users: cargo ships, commercial fishing trawlers and the U.S. military.

Now, the whales are poised to get many new, potentially disruptive neighbors: hundreds of skyscraper-high wind turbines, rising from the ocean floor.

The New York Energy Research and Development Authority has awarded two large contracts for offshore wind and anticipates several more in the coming years. The first phase, expected to be complete by 2024, involves dozens of wind turbines in two different offshore plots, leased by energy companies from the federal Bureau of Ocean Energy Management. They would generate 1700 megawatts — enough to power more than one million homes.

Read the full story at NPR

Researchers to explore pre-permitting approach to aquaculture in New England

December 2, 2019 — The labyrinthine process of obtaining the proper permits to establish fish farms in federal waters has been frequently cited as a major obstacle to the advancement of the U.S. aquaculture sector.

Currently, an application to start an aquaculture operation in federal waters is reviewed by a plethora of federal agencies including the Army Corps of Engineers, the U.S. Coast Guard, NOAA Fisheries, and the Environmental Protection Agency, along with a collection of state agencies if the proposed site is located near state waters. The long review process is often cited as being too complex and costly, according to Hauke Kite-Powell, a research specialist at the Marine Policy Center of the Woods Hole Oceanographic Institution.

Read the full story at Seafood Source

Scientists meeting in Portland say right whales on the way to extinction

November 18, 2019 — The future continues to grow ever darker for the highly endangered right whale, a species that has been in decline every year since 2010 and is at the heart of regulatory protection efforts threatening to upend Maine’s valuable lobster fishery.

The North Atlantic Right Whale Consortium estimates only 409 whales survived 2018, down from about 428 in 2017 and 457 in 2016. With seven births and 10 documented deaths in 2019 factored in, that tally is now probably about 406. Three of those are about to succumb to injuries.

“We are in yet another year of decline for the right whales,” said Mark Baumgartner, a researcher at the Woods Hole Oceanographic Institution and chairman of the consortium, which kicked off its annual right whale meeting Thursday in Portland. “This is extremely concerning.”

The meeting attracted hundreds of scientists, policymakers, animal rights advocates and several dozen curious fishermen. Topics ranged from new developments in how to safely tag a right whale to a review of right whale deaths in 2019 to the impact of whale-related fishery closures in Canada.

Read the full story at the Portland Press Herald

Why Are Birds and Seals Starving in a Bering Sea Full of Fish?

November 4, 2019 — The shipment arrived airfreight: 47 seabird carcasses collected by the Bering Strait villagers of Shishmaref.

Marine biologist Gay Sheffield drove to the airport on an August day to pick up the grisly cargo and bring it back to a laboratory just off the main street of this northwest Alaska town.

Inside a cardboard box, Sheffield found mostly shearwaters, slender birds with narrow wings — also kittiwakes, crested auklets, thick-billed murres, a cormorant and a horned puffin. Most were painfully skinny, bones protruding like knife-edged ridges.

“They starved to death,” Sheffield said. “Why?”

The birds should have been able to fatten on small fish, krill and other food that typically abound in the northern Bering Sea, a body of water so rich in marine life that gray whales, after they winter off Mexico, swim more than 5,000 miles north to feed here each summer.

But as climate change warms the die-offs of seabirds and marine mammals have been on the rise. The grim tally includes a nearly fivefold increase in ice-seal carcasses spotted on shore, strandings of emaciated gray whales, and near the St. Lawrence Island village of Savoonga, a discouraging spectacle: auklets abandoning seaside nests as their chicks succumb to hunger.

Read the full story at the Pulitzer Center

NOAA Awards WHOI $2.9 Million for Harmful Algal Bloom Research

October 9, 2019 — NOAA’s National Centers for Coastal Ocean Science (NCCOS) recently announced funding for 12 new research projects around the country to better understand and predict harmful algal blooms (HABs) and improve our collective response to them.

Woods Hole Oceanographic Institution (WHOI) will receive approximately $2.9 million over the next five years for studies of HABs in New England coastal waters, which have long been impacted by Alexandrium—a species that causes paralytic shellfish poisoning. While Alexandrium blooms can cause shellfish closures throughout the spring and summer, additional HAB species that produce different toxins are becoming more common in the Gulf of Maine, resulting in nearly year-round HAB threats to aquaculture, fisheries, and tourism in the region.

“We’ll be deploying a network of advanced technologies that detect both Alexandrium and emergent HAB species in the region like Pseudo-nitzschia and Dinophysis, species that cause amnesic shellfish poisoning and diarrhetic shellfish poisoning syndromes,” says Mike Brosnahan, WHOI assistant scientist and principal investigator on the project. “The project team will also develop an open system for sharing these data and other products among managers and stakeholders in real time so that they can better protect seafood resources and human health.”

Read the full story at Eco Magazine