Saving Seafood

A record catch of krill near Antarctica could trigger an unprecedented end to fishing season

July 29, 2025 — Trawling near Antarctica for krill — a crustacean central to the diet of whales and a critical buffer to global warming — has surged to a record and is fast approaching a never before reached seasonal catch limit that would trigger the unprecedented early closure of the remote fishery, The Associated Press has learned.

The fishing boom follows the failure last year of the U.S., Russia, China and two dozen other governments to approve a new management plan that would have mandated spreading out the area in which krill can be caught and creating a California-sized reserve along the environmentally sensitive Antarctic Peninsula.

In the first seven months of the 2024-25 season, krill fishing in Antarctica reached 518,568 tons, about 84% of the 620,000-ton limit that, once reached, will force the fishery to automatically close. In one hot spot, the catch through June 30 was nearly 60% higher than all of last year’s haul, according to a report from the Commission for the Conservation of Antarctic Marine Living Resources, or CCAMLR, the international organization that manages the world’s southernmost fishery.

Read the full article at Associated Press

Researchers identify behavioral adaptations that may help Antarctic fishes to adapt to warming Southern Ocean

November 30, 2021 — At first glance, Antarctica seems inhospitable. Known for howling gales and extremely cold temperatures, the continent is blanketed with a mile-thick ice shelf. Occasional elephant seals and seabirds fleck the glacial shorelines.

Yet dipping below the waves, the Southern Ocean teems with biodiversity: vibrant swaths of sea ice algae and cyanobacteria, swarming krill and crustaceans, bristling kelp forests, gigantic polar sea spiders and sponges, whale pods, and abundant Antarctic fish fauna.

These fishes play a vital role in the Southern Ocean’s food web of 9,000 known marine species, yet their subzero haven may be at risk. A 2021 climate analysis posited that by 2050 some areas of the Antarctic continental shelf will be at least 1 degree Celsius warmer.

Researchers from Virginia Tech’s Fralin Biomedical Research Institute at VTC have published a new study in PLOS ONE describing how two species of Antarctic fish – one with hemoglobin in its blood cells and one without – respond to acute thermal stress.

The research team, directed by Virginia Tech Vice President for Health Sciences and Technology Michael Friedlander, observed that both species responded to progressive warming with an elaborate array of behavioral maneuvers, including fanning and splaying their fins, breathing at the surface, startle-like behavior, and transient bouts of alternating movement and rest.

Read the full story from Virginia Tech

 

JOHN KERRY: China’s Chance to Save Antarctic Sealife

October 26, 2020 — Even as the United States and China confront deep disagreements, there is a global challenge that simply won’t wait for the resolution of our differences: climate change.

While some have decided that we are entering a new Cold War with China, we can still cooperate on critical mutual interests. After all, even at the height of 20th-century tensions, the Americans and the Soviets negotiated arms control agreements, which were in the interests of both countries.

Climate change, like nuclear proliferation, is a challenge of our own making — and one to which we hold the solution. We have an opportunity this month to make clear that great power rivalries aside, geopolitics must end at the water’s edge — at the icy bottom of our planet in the Southern Ocean, which surrounds the entire continent of Antarctica.

The first post-World War II arms limitation agreement — the Antarctic Treaty signed in 1959 at the height of the Cold War — banned military activities, created a nuclear-free space, set aside territorial claims and declared the continent a global commons dedicated to peace and science. Now we have the opportunity to extend that global commons from the land to the sea.

Read the full opinion piece at The New York Times

10 nations to jointly study marine resources of the Arctic

June 19, 2019 — A two-day conference of scientific experts from Russia, the United States, Canada, Denmark, Norway, South Korea, China, Sweden, Japan, and the European Union in the Russian city of Arkhangelsk resulted in an agreement to conduct more research on Arctic fisheries.

The April meeting was the first after an agreement between the 10 countries was signed in October of last year. The legally binding accord prohibits all commercial fishing in the Central Arctic until the nations additional surveys of stocks, their sizes, and how the region’s ecosystems operate. The agreement also included a draft of a joint research plan, with details to be discussed later this year and with implemented stalled until all the participating states ratify the agreement.

There is almost no data on high Arctic stocks, as nearly all the Arctic countries have only surveyed their own 200-mile exclusive economic zones. The only known study of the high seas was conducted by scientists from the Stockholm University. Its results presented at the conference brought some surprise and made it clear that more extensive research is needed, according to Vasily Sokolov, deputy head of the Russia’s Federal Agency for Fisheries.

“The Arctic Ocean was supposed to contain no great marine biological resources to be of interest for commercial fisheries. But it turned out that stocks of Arctic cod seem to be there, which means that fishing there may be commercially attractive,” Sokolov said. “The density of stocks increases toward the polar cap.”

Read the full story at Seafood Source

Boaty McBoatface makes major climate change discovery on maiden outing

June 18, 2019 — Boaty McBoatface’s maiden outing has made a major discovery about how climate change is causing rising sea levels. Scientists say that data collected from the yellow submarines’s first expedition will help them build more accurate predictions in order to combat the problem.

The mission has uncovered a key process linking increasing Antarctic winds to higher sea temperatures, which in turn is fuelling increasing levels.

Researchers found that the increasing winds are cooling water on the bottom of the ocean, forcing it to travel faster, creating turbulance as it mixed with warmer waters above.

Experts said the mechanism has not been factored into current models for predicting the impact of increasing global temperatures on our oceans, meaning forecasts should be altered.

Boaty McBoatface – the publicly named robotic submersible carried on the research vessel RRS Sir David Attenborough – took its first expedition in April 2017, studying the bottom of the Southern Ocean.

Read the full story at The Telegraph

VIMS: Antarctic krill declines as South Atlantic Ocean warms

February 4, 2019 — When biological oceanographer Deborah Steinberg bundles up and steps onto the deck of the Laurence M. Gould research vessel, this is what she sees: ice, ice and more ice.

“I see icebergs, I see sea ice, I see crabeater seals floating by on ice floes, the mountains of the Antarctic Peninsula,” Steinberg said in a shipboard phone interview Friday. “It’s gorgeous.”

But it’s what she can’t see, what lies beneath the icy waters of the South Atlantic Ocean off northwestern Antarctica, that concerns Steinberg and an international team of marine researchers: krill.

Read the full story at the Daily Press

Japan Reportedly Will Leave International Whaling Group To Resume Commercial Hunts

December 20, 2018 — Japan will withdraw from an international organization established to limit whale hunts in an apparent attempt to resume commercial whaling, according to Japanese media outlets.

Public broadcaster NHK reports that government officials informed ruling party lawmakers on Thursday. The Asahi Shimbun, citing unnamed sources, said a formal announcement was likely “within days.”

Japanese whaling expeditions in Antarctic and Pacific waters kill hundreds of whales annually, ostensibly for research.

As NPR’s Colin Dwyer explained last year:

“Under the rules of the International Whaling Commission, of which Japan is a member, there has been an international ban on commercial whaling since 1986 — though there is an exception for whaling conducted with ecological research in mind. It is this exception that allows Japan’s whaling fleet to embark on its yearly hunt in the icy waters of Antarctica.

“Yet many critics view this use of the exception as a fig leaf, exploited by Japan’s Fisheries Agency to cover for the practice of reportedly selling whale meat commercially.”

In 2014, the International Court of Justice ruled that Japan wasn’t conducting enough research to justify the hunts, and ordered Japan to revoke Antarctic whaling permits. After a year’s pause, Japan began what it said was a scaled-back whaling program.

Read the full story at NPR

Melting ice poses fleeting ecological advantage but sustained global threat, Stanford scientist says

August 31, 2018 — From collecting field samples inside the ocean’s frozen ice pack to analyzing satellite images in the comfort of his Stanford office, Kevin Arrigo has been trying to figure out how the world’s rapidly thinning ice impacts polar food chains. Arrigo, a professor of Earth system science at Stanford School of Earth, Energy & Environmental Sciences, found that while melting ice threatens to amplify environmental issues globally, ice sheet retreat can provide much-needed food in local ecosystems.

Through this work, Arrigo discovered that thinning ice at the poles can alleviate polar food deserts by extending phytoplankton blooms. However, the silver lining associated with melting ice cannot make up for imminent threats, such as rising sea levels, associated with unchecked glacial shrinkage.

Arrigo, who is also the Donald and Donald M. Steel Professor in Earth Sciences, spoke with Stanford Report about his work on polar phytoplankton blooms and discussed whether recent news about sea ice breaking up suggests we’ve reached a tipping point.

What have you learned about how glacial melt impacts food chains in the extreme environments of the poles?

It turns out that when glaciers form, they accumulate particles and dust that contain essential nutrients like iron, on which all living things depend for survival. As glaciers melt, they add nutrients to the ocean and fertilize the local ecosystem. In Greenland and Antarctica, the ocean is short on iron, so melting glaciers make up for the lack of iron.

Read the full story at Stanford News

 

Antarctic Penguins Find an Unlikely Ally: Fishermen

July 11, 2018 — In the waters off the northern tip of the world’s southernmost continent, one of the most important creatures is also the most profitable: pinky-length Antarctic krill.

These swarming, translucent, shrimp-like creatures are eaten by almost everything here—fish, penguins, seals, and whales. But krill also support a multimillion-dollar global fishing industry. They get sucked into nets and ground into meal to feed aquarium fish or farm-raised salmon and get squeezed for their oil, which is used in pharmaceuticals, including in the United States.

Now, with climate change rearranging life along the western Antarctic Peninsula, scientists and marine advocates have been warning that wildlife—particularly penguins—are under far too much stress. Krill fishing, they say, could be making things worse.

Monday, after years of negotiations, a majority of the fishing industry formally agreed to stop hauling in krill from around the peninsula’s troubled penguin colonies. The industry also committed to helping set up a network of marine protected areas in coming years to better protect marine animals.

Read the full story at National Geographic

China is Fishing Ever Farther From Home, Adding to Stress on Fish Stocks

January 1, 2018 — China’s fishing fleet, which reaches as far as Latin America, West Africa, and even Antarctica, is adding to a worldwide strain on fish stocks.

So it’s no surprise that Chinese fishermen have been involved in clashes with foreign fishermen and coast guards at great distances from their homeland.

In perhaps the most dramatic clash, which occurred in March 2016, Argentina’s coast guard sank a Chinese trawler that was fishing within its territorial waters more than 11,000 miles from its home base on the China coast. The trawler had tried to ram the Argentine vessel.

Argentine Navy submarines have been assigned to “chase down illegal fishing vessels in the frigid waters off southern Argentina,” according to a Wall Street Journal report from that country published early this month.

Reuters news agency, meanwhile, reported at the end of August that Ecuador had jailed 20 Chinese fishermen for up to four years for illegally fishing off the Galapagos Islands, where they were caught with some 6,600 sharks.

Their vessel contained some 300 tons of near-extinct or endangered species, including hammerhead sharks.

Incidents have also occurred near South Korea and in disputed areas in the South China Sea, where Chinese Coast Guard ships have clashed with Vietnamese fishermen.

Pressures in the Yellow Sea, East China Sea, and South China Sea leading to incidents like this are driving China to fish elsewhere in the world.

Chinese fishermen target West Africa

In April 2017, The New York Times reported from Senegal that Chinese fishermen were increasingly heading to West Africa.

The fishermen are enabled by corrupt local governments and their weak enforcement of fishing limits.

Citing experts, The Times states that West Africa now provides “the vast majority” of fish caught by China’s distant-water fishing fleet.

Fishing off the coast of Senegal, “most of the Chinese ships are so large that they scoop up as many fish in one week as Senegalese boats catch in a year,” The Times report said.

Most of the fish are sent abroad, with some of it ending up as fishmeal fodder for chickens and pigs in Europe and the United States.

For Senegalese citizens, many of whom depend on fish as a source of protein, diminishing fish catches mean higher food prices.

In nearby Sierra Leone, meanwhile, a similar scenario is playing out.

The Economist Magazine reported on Dec. 7 from Sierra Leone that “nearly half of the population” of 7.4 million people in the small west African nation “does not have enough to eat.”

“But the country’s once plentiful shoals, combined with its weak government, have lured a flotilla of unscrupulous foreign trawlers to its waters.”

Most of the trawlers fly Chinese flags, but dozens also come from South Korea, Italy, Guinea, and Russia.

According to Tabitha Mallory, an expert on these issues, by 2015 more than 160 Chinese fishing enterprises had agreements to operate off the shores of some 40 countries, the high seas, and Antarctica. But other Chinese vessels may be operating in more countries illegally.

But in contrast with West Africa, where Chinese fishermen have done great harm to local economies, Antarctica stands out as a new frontier where the fishermen appear to have begun playing by internationally agreed upon rules.

China has joined a commission for the conservation of marine life in Antarctica and has pledged its support for a marine protected area on the cold continent.

However, poor regulation of China’s distant-water fishing (DWF) fleet elsewhere has added to a strain on global fish stocks, according to experts and nongovernmental organizations monitoring the issue.

Greenpeace, a nongovernmental organization which campaigns to change attitudes toward the environment, has found that from 2014-2016, China’s distant water fishing (DWF) fleet — vessels operating outside Chinese territorial waters — increased by 400 to nearly 2,900.

This followed a similar period of expansion between 2012 and 2014, when the fleet grew by 15 percent each year on average.

By comparison, the United States had just 225 large-size DWF vessels, according to 2015 data.

Read the full commentary at Radio Free Asia