Saving Seafood

Counting All the Fish in the Sea May Be Even Trickier Than Scientists Thought

August 23, 2024 — Counting the number of fish in the ocean may well be one of science’s toughest jobs. It also produces a crucial tool governments use to protect marine ecosystems that feed millions of people across the world.

Fish stock assessments work a lot like climate models. Scientists gather a wide range of data from fish catches, like age and weight, and track environmental conditions, like the temperature of the sea, and use mathematical models to estimate the health of fish populations. The analysis is then used to make recommendations to governments.

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“A lot of the things they say you need to do are already in place,” said Ray Hilborn, a professor of fishery science at the University of Washington. Many fishery managers, he explained, already look back at historical trends to correct for a possible tendency to over or undercount fish populations.

Steven Cadrin, a marine scientist at the University of Massachusetts Dartmouth, who has worked on fish stock assessments for decades, said the study’s findings are “invalid,” partly because the researchers used the most recent stock assessments as a benchmark for accuracy. More recent tallies of fish populations may be just as prone to error, he said.

The fisheries included in the study have some limitations. The study’s researchers examined fish assessments with ample data, which are largely done by some of the wealthiest countries in the world, such as the United States, Canada and Australia.

Still, some of the most troubled fisheries, in countries like India and Indonesia, don’t do thorough fish stock assessments, Dr. Hilborn said.

“The global fisheries problem,” he said, “is that about half of the world’s fish stocks are simply not assessed.”

Read the full article at The New York Times

Menhaden Fisheries Coalition releases ‘Atlantic Menhaden: Fishing by the Numbers’

March 16, 2016 (Menhaden Fisheries Coalition) — The following was released by the Menhaden Fisheries Coalition:

While prominent environmental groups have claimed for years that the menhaden fishery has harvested too many menhaden, a thorough analysis from the Menhaden Fisheries Coalition shows that the number of fish being caught is a small fraction of the coastwide population.

Between 2004-2013, the fishery only harvested an average of 6.4 percent of the overall menhaden population. This leaves over 93% of menhaden left in the ecosystem as forage for birds, fish and other sea creatures. Menhaden fishing mortality, which hit an all-time low in the last assessment, is dwarfed by natural mortality, which accounts for predation and mortality from other causes outside of the fishery.

The analysis, “The Fate of an Atlantic Menhaden Year Class,” and accompanying infographic, “Atlantic Menhaden: Fishing by the Numbers,” is based on the catch data included in the 2015 Atlantic States Marine Fisheries Commission Atlantic menhaden stock assessment. Also examined in the analysis is the age of menhaden that are caught by the fishery. The fishery specifically does not target juvenile menhaden-those most likely to serve as forage-and the oldest fish-those that are the most fertile spawners. This harvest approach is reflected in the catch data: the fishery overwhelmingly catches menhaden between the ages of 2 and 3, and the catch for juvenile and older menhaden is negligible. 

These estimates, along with the 2015 assessment’s headline findings that menhaden are not experiencing overfishing nor are they being overfished, further confirm the sustainability of the fishery. With such a small percentage of the menhaden population actually going to harvest, as well as other positive indicators for stock health, it is clear that current menhaden management is safeguarding the health and the future of the species.

For more information on the results of the analysis, please review the infographic below. For more information on how these estimates were calculated, read “The Fate of an Atlantic Menhaden Year Class.”

Saving Atlantic salmon will require Greenland’s help

March 13, 2016 (AP) — Preventing the long-imperiled Atlantic salmon from disappearing from American waters will require the U.S. to put pressure on Inuit fishermen in Greenland to stop harvesting a fish that has fed them for hundreds of years, federal officials say.

The salmon were once found from Long Island Sound to Canada, but their population has cratered in the face of river damming, warming ocean waters, competition for food with non-native fish and, officials say, continued Greenlandic fishing.

Now, federal officials have outlined an ambitious plan to try to save the Atlantic salmon that they say will require removing dams, creating fish passages and fostering cooperation with Inuit fishermen some 2,000 miles away from Maine, where most of America’s last wild Atlantic salmon spawn.

“We’ve tried everything possible to negotiate with Greenland to find alternatives to find out how they can lessen impacts on U.S. fish,” said Dan Kircheis, a fisheries biologist with the National Marine Fisheries Service. “This is part of their culture, this is part of who they are, this is something they’ve always done. We are trying to work with them to realize the fish they are fishing for originate in Canada, in U.S. waters, in Europe, and these populations are in decline.”

Read the full story from the Associated Press at Portland Press Herald

Can the Market Save the World’s Fisheries?

March 1, 2016 — A new plan to save the ocean is coming from somewhere surprising: Wall Street. An investment firm thinks they can nurture sustainable fisheries in developing countries and make a buck at the same time. Some are calling it a big deal. Others think they’re naive.

The reality is, fish are in bad shape. The United Nations says about 30 percent of world fish stocks are being harvested at an unsustainable pace. Some researchers think that figure is as high as 45 percent.

Efforts to rebuild fish populations—mostly in the past half-century—have had some successes. But just as often, efforts to manage fish stocks sustainably fail because money and political will dry up, laws aren’t enforced, or fisheries managers are simply overwhelmed by the complexity of an ecosystem.

A firm called Encourage Capital thinks they have an approach that can succeed. The firm’s particular brand of investing is about trying to encourage positive social or environmental changes through targeted capital investments.

Former New York City mayor Michael Bloomberg’s philanthropic organization and the Rockefeller Foundation tapped Encourage to develop an investment strategy as part of Bloomberg Philanthropies’ Vibrant Oceans initiative.

Read the full story at Hakai Magazine

MSC labelled products reach 20,000

February 23, 2016 — The following was released by the Marine Stewardship Council:

LONDON – Today the Marine Stewardship Council (MSC) reached an important milestone with the launch of the 20,000th MSC labelled product, Las Cuarenta Paella. The ready-made frozen meal is now available in Netto stores across Germany. The paella contains pollock from Alaska and Russia, blue shell mussels from Denmark, and shrimps from Suriname. 

A growing trend in new seafood products

The paella’s seafood mix comes from a diverse range of fisheries, from a developing world fishery in South America, to some of the world’s largest fisheries in North America and Europe. Each of these fisheries is committed to ensuring the health and sustainability of the fish stocks they harvest

“The 20,000th MSC labelled product, Las Cuarenta Paella, illustrates the growing trend in new seafood products. Over the last decade, we’ve seen new and novel ways MSC certified seafood is being used. From ready-made meals such as paella to sandwiches, pizza and baby food. Las Cuarenta paella is a fine example of how retailers and manufacturers are exploring new trends to attract more sustainable seafood lovers,” said Nicolas Guichoux, MSC’s Global Commercial Director. 

Thanks to the efforts of these and over 280 other certified fisheries, consumers in over 100 countries can choose from a variety of MSC labelled products covering more than 100 different species. Consumers can also be assured that MSC certified seafood has an effective, traceable supply chain which ensures the integrity of MSC labelled products.

“Nine years ago only 1,000 labelled products were on the market globally. So we celebrate this new important milestone, and honor all fisheries and retail partners whose commitment to sustainability has contributed to the growth of the MSC program around the world and played a part in securing a healthy future for our oceans,” added Nicolas Guichoux.

MSC in Germany

Germany is the MSC’s most developed market in terms of certified sustainable seafood consumption, with over 4,000 MSC certified products on sale. Netto is one of many retail partners committed to sourcing and selling MSC certified products in the country. The discounter offers a wide range of responsibly sourced seafood with more than 100 MSC-labelled products in store. Netto has made a long-term commitment to only source and sell seafood– from MSC certified sustainable fisheries. 

“We are very proud that the 20,000th MSC labelled product is a Netto product. With the growing availability of MSC certified seafood from a variety of species, we’ve been able to expand our range of products so that our customers can buy their favorite seafood in the knowledge that the environment is being safeguarded. MSC certified products play an important role in our corporate sustainability agenda,” said Christina Stylianou, Corporate Communications Director at Netto.

A label you can trust

The blue MSC label assures consumers that the fish they are buying comes from a sustainable and well-managed fishery that has been independently certified, ensuring that the fish populations and the ecosystems upon which they depend remain healthy and productive.

Any organization selling or handling MSC certified seafood must ensure that it is correctly labelled and kept separate from other non-certified seafood at all times. This ensures that MSC labelled seafood can be traced back to a sustainable source.

You can find these products in-store, online and in restaurants.

Climate change poses threat to fish stocks, study finds

February 3, 2016 — Over the coming decades, dozens of marine species from the Carolinas to New England will be threatened by the warming, changing currents and the increased acidity expected to alter the region’s waters, according to a new study by scientists at the National Oceanic and Atmospheric Administration.

Atlantic salmon, winter flounder, bay scallops, ocean quahogs, and other species may face the kind of trouble from climate change that has been linked in previous research to the decline of Atlantic cod, which has lost an estimated 90 percent of its population over the past three decades, the study found.

The authors of the study, released Wednesday by the journal Plos One, found that half of the 82 species they evaluated along the northeastern coast are “highly” or “very highly” vulnerable to the effects of climate change, meaning their populations and ability to reproduce are likely to decline.

“The results show that climate change presents significant challenges to the region’s fishery management and to its ability to sustain fishing communities,” said Jonathan Hare, a NOAA oceanographer who was the lead author of study.

The study also found that 80 percent of the species studied are likely to move beyond their normal habitats.

Read the full story from the Boston Globe

 

Toxic pollutants found in fish across the world’s oceans

February 1, 2016 — When you go out for seafood, are you aware of what that fish on your plate might have been exposed to while swimming around in the world’s oceans? According to new research, fish populations around the world have been contaminated with industrial and agricultural pollutants known as persistent organic pollutants (POPs).

Researchers from the Scripps Institution of Oceanography at the University of California San Diego examined hundreds of peer-reviewed reports that stretched from 1969 through 2012. Some of the pollutants that were identified in the study included 20th century “legacy” toxins like DDT, which is banned in the U.S. and no longer widely used worldwide, and mercury, as well as more contemporary pollutants like coolants and other industrial chemicals like flame retardants.

“Based on the best data collected from across the globe, we can say that POPs can be anywhere and in any species of marine fish,” study co-author Stuart Sandin said in a press release.

However, there were some signs of improvement. The researchers found that the concentrations of pollutants contaminating fish populations have been dropping at a consistent rate over the past 30 years.

Read the full story at CBS News

More plastic than fish in oceans by 2050

January 19, 2016 — The world is flooded with plastic garbage.

There will be more plastic than fish in terms of weight in the world’s oceans by 2050, the World Economic Forum warned Tuesday.

Plastic has become one of the world’s most popular materials, combining amazing functionality and very low production costs. Its use has increased 20-fold in the past 50 years and is expected to double again in the next 20 years.

Almost everybody in the world comes into contact with it — over a quarter of all plastic is used for packaging, the most popular use of the material.

But only 14% of plastic packaging is collected for recycling. The reuse rate is terrible compared to other materials — 58% of paper and up to 90% of iron and steel gets recycled.

It gets worse. Almost a third of all plastic packaging escapes collection systems and ends up in nature or clogging up infrastructure.

Read the full story at CNN Money at KCRA

 

Off the hook – Researchers find mortality of cod caught and released off Gloucester is half of original estimate

December 21, 2015 — With cod at historically low population levels and commercial fishermen limited to landings that are just a fraction of what they once were, the recreational catch is now believed to account for as much as one-third of total landings of Gulf of Maine cod.

But recreational landings data was considerably poorer than the commercial data, which made it hard to estimate their true impact on the population or know the effectiveness of regulatory measures.

Solving the cod crisis will take a lot of research. Now, scientists are no longer restricted to their lab. As a recent study shows, creative thinking and technology can turn the ocean into a lab, and the results can be more precise and minimize the regulatory impact on fishermen.

A key missing piece in the puzzle was information on how many fish died after they were released by anglers. Lacking key data such as length and weight of released cod resulted in the assumption that 100 percent of those fish died. Missing data can lead to underestimating the population size, with overly strict regulations, said Michael Palmer, National Marine Fisheries Service research fishery biologist.

Researchers started collecting length and weight data in 2005 after regulators tightened reporting requirements for recreational fishermen. In 2011, a panel arrived at a consensus that 30 percent of cod released by anglers died. But Palmer was concerned that there were no directed studies, in the U.S. or internationally, to truth-test the estimate.

Read the full story at Cape Cod Times

 

Fish Stocks Are Declining Worldwide, And Climate Change Is On The Hook

December 14, 2015 — For anyone paying attention, it’s no secret there’s a lot of weird stuff going on in the oceans right now. We’ve got a monster El Nino looming in the Pacific. Ocean acidification is prompting hand wringing among oyster lovers. Migrating fish populations have caused tensions between countries over fishing rights. And fishermen say they’re seeing unusual patterns in fish stocks they haven’t seen before.

Researchers now have more grim news to add to the mix. An analysis published Monday in the Proceedings of the National Academy of Sciences finds that the ability of fish populations to reproduce and replenish themselves is declining across the globe.

“This, as far as we know, is the first global-scale study that documents the actual productivity of fish stocks is in decline,” says lead author Gregory L. Britten, a doctoral student at the University of California, Irvine.

Britten and some fellow researchers looked at data from a global database of 262 commercial fish stocks in dozens of large marine ecosystems across the globe. They say they’ve identified a pattern of decline in juvenile fish (young fish that have not yet reached reproductive age) that is closely tied to a decline in the amount of phytoplankton, or microalgae, in the water.

Read the full story at NPR