Saving Seafood

11 Cool Cetaceans Facts

February 17, 2021 — The following was released by NOAA Fisheries:

Marine mammals in the cetacean family include whales, dolphins, and porpoises. These animals are often referred to as “sentinels” of ocean health, providing insight into marine ecosystem dynamics. Learn more cool things about cetaceans below.

1. They tend to be social and live in groups. Cetaceans may communicate by slapping the water.

Dolphins and porpoises exhibit complex communication and echolocation by making squeaks, buzzes, whistles, and clicks that can be heard from miles away. They are also thought to communicate by slapping the water’s surface with their tails or bodies.

2. Killer whales are part of the dolphin family. There are three main types of killer whales, or ecotypes, in the North Pacific: Resident, Transient, and Offshore.

In fact, they are the largest member of the Delphinidae, or dolphin family. Members of this family include all dolphin species, as well as other larger species such as long-finned pilot whales and false killer whales, whose common names also contain “whale” instead of “dolphin.”

Each North Pacific killer whale ecotype differs in appearance, diet, habitat, genetics, and behavior. While all three types share at least part of their habitats, they are not known to interbreed. Resident killer whales usually eat different varieties of fish, primarily salmon. Southern Resident killer whales prefer Chinook salmon, some of which are endangered. Transient (or Bigg’s) killer whales eat other marine mammals, such as seals, and squid. Offshore killer whales primarily eat sharks and scientists have discovered that the whales’ teeth are worn down over time due to sharks’ rough skin.

In January, 2019, an experienced group of killer whale biologists launched an expedition from the southern tip of Chile into some of the roughest waters in the world, searching for what could be a new species of killer whale.

3. Blue whales have the biggest hearts on the planet.

The heart of a blue whale weighs more than 1,000 pounds, the weight of an average dairy cow.

Read the full release here

In the fight to save the vaquita, conservationists take on cartels

February 17, 2021 — From above, the Sea of Cortez is a picture of serenity: turquoise waters lapping against rose-tinted bluffs and soft sand beaches. But down below, beneath the water’s surface, a war is raging.

Each year, typically between late November and May, huge gillnets — some stretching more than 600 meters (2,000 feet), or the length of five and a half football fields — are dropped into the waters to catch totoaba (Totoaba macdonaldi). This critically endangered species is illegally fished for its prized swim bladders, which can fetch prices between $20,000 and $80,000 per kilo in China. While gillnets are highly effective at catching totoaba, they also catch just about everything else, including another critically endangered species: the vaquita (Phocoena sinus).

The vaquita is a bathtub-sized porpoise with silvery-gray skin and panda-like eyes that lives exclusively in a small section of the northern Gulf of California, close to the town of San Felipe in Baja California, Mexico. Right now, experts say there may only be about nine vaquitas left, despite the Mexican government spending more than $100 million to aid its recovery.

“The vaquita issue, in my opinion, is an example of epic, epic failure of conservation,” Andrea Crosta, executive director of Earth League International (ELI), an NGO that investigates wildlife crime, told Mongabay in an interview. “I don’t think rhinos and elephants combined have $100 million … and yet the vaquitas went from a few hundred individuals to … nobody knows how many now. Probably 12, 10, maybe less.”

But Crosta says it’s not the fishers deploying the gillnets that are the biggest threat to the vaquitas — it’s the people organizing the illegal trade of totoabas behind the scenes. They’re the ones placing the gillnets into the fishermen’s hands, he said.

Read the full story at Mongabay

California Harbor Porpoises Rebound After Coastal Gillnetting Stopped

January 14, 2021 — The following was released by NOAA Fisheries:

Harbor porpoises have rebounded in a big way off California. Their populations have recovered dramatically since the end of state set-gillnet fisheries that years ago entangled and killed them in the nearshore waters they frequent. These coastal set-gillnet fisheries are distinct from federally-managed offshore drift-gillnet fisheries. They have been prohibited in inshore state waters for more than a decade. The new research indicates that the coastal set gillnets had taken a greater toll on harbor porpoise than previously realized.

The return of harbor porpoises reflects the first documented example of the species rebounding. It’s a bright spot for marine wildlife, the scientists write in a new assessment published in Marine Mammal Science.

“This is very good evidence that if we can eliminate the deaths in fishing nets, marine mammal populations can come back in a big way,” said Karin Forney, a research biologist with NOAA Fisheries’ Southwest Fisheries Science Center who is based in Monterey Bay.

The State of California managed set-gillnet fisheries for white seabass and halibut in coastal waters off central California beginning in the 1930s. Before the 1980s, there was little solid information about the impacts of coastal set-gillnets on protected species such as marine mammals and seabirds. Harbor porpoises were vulnerable to this coastal fishery because they frequent shallow inshore waters where the nets were historically set.

The scientists estimated, based on a combination of data, that as many as 300 harbor porpoises per year may have been killed in California’s coastal set-gillnet fisheries during the 1980s. One 1994 study (PDF, 4 pages) confirmed the deaths of more than 50 harbor porpoises in Monterey Bay alone, with the authors speculating that the true number was far higher.

Read the full release here

With US ban on Mexican seafood imports in place, vaquita court case dismissed

April 22, 2020 — A lawsuit against the U.S. government aiming to require it to enforce the Marine Mammal Protect Act in regard to the critically endangered vaquita porpoise has been dismissed after the U.S. National Marine Fisheries Service expanded a ban on imports of seafood products caught in the vaquita’s habitat.

U.S. Court of International Trade Judge Gary S. Katzmann dismissed the suit at the request of the plaintiffs, the Natural Resources Defense Council, the Center for Biological Diversity, and the Animal Welfare Institute, on 22 March.

Read the full story at Seafood Source

Maryland officials join opposition to offshore seismic tests

April 22, 2019 — Maryland officials have joined a host of congressmen in opposing the Trump administration’s plan to start underwater seismic testing along the Atlantic coast, operations that could lead to increased domestic production of oil and gas, but also could be harmful to marine animals.

The offshore seismic testing would be part of oil and gas exploration from Florida up the East Coast to Delaware, including the coast of Maryland.

Maryland Attorney General Brian Frosh and eight other attorneys general joined as parties to a lawsuit aimed at stopping the testing, which they said would subject marine creatures such as whales, porpoises, and dolphins to extremely loud sounds.

Read the full story at WTOP

Court Orders Seafood Import Ban to Save Vaquita

July 31, 2018 — Responding to a lawsuit filed by conservation groups, the U.S. Court of International Trade has ordered the U.S. Government to ban seafood imports from Mexico caught with gillnets that kill the critically endangered vaquita porpoise.

As few as 15 vaquita remain, and almost half the population drowns in fishing gillnets each year. Without immediate additional protection, the porpoise could be extinct by 2021.

This is the life line the vaquita desperately needs, said Giulia Good Stefani, staff attorney with the Natural Resources Defense Council, who argued the case before the Court.

The ruling follows a lawsuit filed in March by the Natural Resources Defense Council, the Animal Welfare Institute and the Center for Biological Diversity, and it affirms Congress’ mandate under the U.S. Marine Mammal Protection Act that the United States protect not just domestic marine mammals, but also foreign whales, dolphins, and porpoises.

Read the full story at The Maritime Executive

 

Senators Feinstein, Harris introduce bill to ban drift nets in California

April 30, 2018 — A bipartisan bill to ban controversial drift net fishing off California’s coast was introduced Thursday by Democratic California Sens. Dianne Feinstein and Kamala Harris, along with West Virginia Republican Sen. Shelley Moore Capito.

The nets, which can be more than a mile long, are intended to catch swordfish but end up trapping dolphins, sea lions and a host of other marine life, many of which die.

“The use of drift nets to target swordfish harms too many endangered or protected marine animals and should be phased out,” Feinstein said in an emailed statement. “It’s unacceptable that a single California fishery that uses this type of drift net is killing more dolphins and porpoises than the rest of the West Coast combined.”

Large mesh drift nets are already banned in the Atlantic Ocean and Gulf of Mexico, as well as off the coasts of Washington, Oregon, Alaska and Hawaii, according to Feinstein. Additionally, the United States is a signatory to international agreements that ban large drift nets in international waters.

Read the full story at the Orange County Register

 

Salmon survival: ‘We need more lethal removal of sea lions. Hazing is not the answer’

April 6, 2018 — Ted Walsey’s shotgun cracked like thunder, lobbing a cracker shell into the Columbia River and sending the big brown sea lion beneath the surface in search of friendlier waters. But the boat and the noises emanating from it weren’t far behind.

Just as crews from the Columbia River Inter-Tribal Fish Commission have for a number of years, Walsey, Bobby Begay and Reggie Sargeant patrolled the river just below Bonneville Dam on Wednesday afternoon, harassing but not killing sea lions with cracker shotgun shells and so-called seal bombs — both essentially big firecrackers, the former shot from a shotgun, the latter dropped by hand — downstream and away from the fish ladders, where endangered migratory salmon congregate.

For the salmon, it’s the first chokepoint on a long journey to their spawning grounds. For hungry sea lions, it’s like a quick trip to an all-you-can-eat buffet.

The National Oceanic and Atmospheric Administration Fisheries division estimates about 45 percent of spring chinook salmon are lost between the mouth of the Columbia and Bonneville Dam, with sea lions being primarily responsible.

Sea lions — as well as whales, dolphins and porpoises — are protected under the Marine Mammal Protection Act. For the last 15 years or so, states and tribes have been able to kill some sea lions, but they have to go through a long and laborious permitting process to do so on an animal-by-animal basis.

Read the full story at TDN