Saving Seafood

In Mexico, gains from fishery management reforms could surpass losses from climate change

October 25, 2019 — Abalone along the Pacific coast in northern Mexico have declined dramatically in the last decade because of lower oxygen levels prompted by climate change. But despite that, the Pacific Federation of Fishing Cooperatives (Fedecoop) has been able to prevent overfishing by limiting the total catch, according to Laura Rodriguez, the associate vice president of the Environmental Defense Fund’s Latin and South American Oceans Program.

It’s the type of proactive governance that Mexico and Latin America need more of as climate change grows more severe, warping ocean conditions from temperature to acidity, salinity to oxygen levels, all while altering the life histories, distribution, and productivity of marine species, according to Rodriguez.

Read the full story at Seafood Source

ISSF: 15% of world’s tuna catches come from over-fished stocks

October 24, 2019 — About 15% of total commercial tuna catches worldwide come from overfished stocks, according to a new report by the International Seafood Sustainability Foundation (ISSF) on the status of tuna stocks.

With stocks described as overfished and overfishing taking place, Atlantic Ocean bigeye and Indian Ocean yellowfin tuna stocks face a particular challenge, according to the report.

ISSF, formed in 2009 as a global, non-profit partnership among the tuna industry, scientists and World Wide Fund for Nature, assessed status of seven species of major commercial oceanic tuna. This included 23 stocks in total (6 albacore, 4 bigeye, 4 bluefin, 5 skipjack and 4 yellowfin stocks).

Read the full story at Undercurrent News

New device to be tested off Outer Banks could help save sharks from commercial fishing all over the world

October 17, 2019 — An Outer Banks fisherman next summer will test a device about the size of a spark plug that could save rare sharks.

The waterproof gadget with a transistor inside would be connected just above the hooks on a long line used for commercial harvesting of species such as tuna and swordfish. It would emit an electric pulse that drives sharks away from the baited hook.

“If this works it will be huge,” said Outer Banks fisherman Charlie Locke. “It could benefit fisheries all over the world.”

Sharks swarm the waters around the Outer Banks with many species spawning and giving birth here.

Hungry sharks gobble chunks from large tunas on commercial fishing lines. Charter boat anglers often reel in nothing but a fish head after a shark has bitten off the rest.

“We already know there is a healthy population here,” Locke said.

Read the full story at The Virginian-Pilot

Does the dramatic increase in tuna catches mean extinction is around the corner? No.

October 11, 2019 — The following is an excerpt from a story originally published by Sustainable Fisheries UW:

Over the last week there have been multiple news stories saying that we are harvesting tunas at unprecedented and unstainable rates—some stories have implied that tunas are on track for extinction. This is simply not true. Most of the time, catches are not a reliable indicator of abundance.

The news articles were based on a recent paper that showed that global catches have increased more than 1,000% over the past 60 years. That statistic sounds large and scary, but it is the poor understanding of how fisheries develop that is scariest.

Fisheries develop, just like other products and industries

The increase in tuna catches reflects the classic behavior of any developing fishery. Throughout history, catches increase until they level out or until they start declining because of two potential reasons: 1. abundance of populations goes down and therefore with the same fishing effort catches go down, or 2. fisheries management is put in place to reduce fishing effort and therefore catch goes down. In the case of industrial tuna fisheries, it is not surprising that tuna’s catches increased since 1950, because this is when these fisheries started.

Global catches of large commercial tuna species from 1950 to 2017. SKJ = skipjack tuna, BFT = bluefin tuna, BET = bigeye tuna, ALB= albacore tuna. PBF= pacific bluefin tuna, SBF = southern bluefin tuna. Updated from: Pons et al. 2017. Effects of biological, economic and management factors on tuna and billfish stock status.

Moreover, recent catches are not increasing very fast. In 2017, total tuna catches were only 18% higher than in 2000. Most of this increase was generated by an increase in skipjack tuna catches, the most productive of all the major tuna species. Further, skipjack are fished at sustainable levels in all Oceans (see figure below). Are we driving skipjack tuna to extinction or even overfishing them? Definitely not.

Read the full story at Sustainable Fisheries UW

American Samoa’s governor warns tuna fishery closure holds ‘severely negative impacts’

October 10, 2019 — The US National Marine Fisheries Service (NMFS) has announced the tuna purse seine fishery in the “Effort Limit Area for Purse Seine” (ELAPS) will close as of Oct. 9.

The rule was passed on Oct. 1, as a result of vessels reaching the 2019 limit on purse seine fishing effort in the ELAPS. “This action is necessary for the United States to implement provisions of a conservation and management measure adopted by the Commission for the Conservation and Management of Highly Migratory Fish Stocks in the Western and Central Pacific Ocean,” it said.

However, American Samoa’s governor, Lolo Moliga, has written to Michael Tosatto — regional administrator for the NMFS in the Pacific Islands — asking for the rule to be “corrected”.

The cessation of fishing in the ELAPS until the turn of the year will have a negative impact on the tuna-dependent economy of his nation, wrote Loliga.

Read the full story at Undercurrent News

PNA data offers a better understanding of drifting FADs

October 10, 2019 — In recent years, concern has been growing about bycatch of juvenile bigeye tuna by purse-seiners setting nets on drifting fish aggregation devices (dFADs). The main target of the purse-seiners is the more plentiful skipjack tuna, but as bigeye inhabit the same tropical seas, they are often taken as well.

The devices typically consist of a raft or buoy trailing a length of disused netting tied into the shape of a string of sausages, used to attract tuna – which like to gather under floating objects. Modern dFADs are equipped with a solar-powered GPS device and a fish finder to report their location and the amount of fish gathered under them. Support vessels manage the deployment and retrieval of the dFADs, so that fishing vessels can concentrate on fishing.

Read the full story at Seafood Source

Second bigeye and yellowfin tuna fishery achieves MSC certification

October 10, 2019 — The Marine Stewardship Council has announced that longline fishing vessels under the management of the Marshall Islands Fishing Venture that target bigeye and yellowfin tuna have achieved certification to the MSC standards.

Based in the Republic of the Marshall islands in the Southwest Pacific,  the fishery is now the second bigeye tuna fishery in the world to meet the requirements of MSC certification, after a yellowfin and bigeye tuna fishery in the Federated States of Micronesia achieved certification in March. Both fisheries are operated by Liancheng Overseas Fishery (Shenzhen) Co. Ltd.

Read the full story at Seafood Source

Sharks and tuna will be the focus of UMaine research grant

October 8, 2019 — Commercially valuable tuna, swordfish, sharks and other “highly migratory species” will be the focus of research to be conducted by a consortium that includes the University of Maine.

The consortium was awarded $1.6 million by the National Oceanic and Atmospheric Administration, according to a news release.

The funds came through NOAA’s 2019 Sea Grant Highly Migratory Species Research Initiative.

The study will focus on the life histories of highly migratory species in the Atlantic Ocean and Gulf of Mexico. It’s expected the research will help contribute to better management of the species.

The new research consortium, called the Pelagic Ecosystem Research Consortium or PERC, is led by Walt Golet at the University of Maine.

Read the full story at MaineBiz

Global Tuna Alliance formed to advance sustainability goals and push RFMOs to reform

October 8, 2019 — A group of companies representing multiple levels of the tuna supply chain have joined together to launch a new alliance that will seek to improve tuna sustainability, raise respect for the human rights of fishermen and prevent illegally caught tuna from reaching the market.

The Global Tuna Alliance, which was announced 2 October, is open to retailers, food service companies, suppliers, and brands. It will leverage the power of the supply chain to compel change in fisheries, including pushing for reforms at Regional Fishery Management Organizations (RFMOs).

Read the full story at Seafood Source

NPR Report: Some scientists say tuna is being taken from the seas at unsustainable rates

October 7, 2019 — Editor’s note: On Twitter, University of Washington fisheries scientist Trevor Branch responded to this study, writing, “Most tuna fisheries are sustainable, and all have millions of individuals. None are in any danger of extinction (indeed no marine fish has ever been fished to extinction).” He also wrote, “Given that tuna fishing only took off in the 1950s and 1960s (when they started fishing them in the open ocean, where nearly all of them they live), is it really newsworthy that catches increased 1000% since then?”

If you’re in the mood for a tuna poke bowl or an old-school tuna niçoise salad, here’s a tip: Don’t hit up the Greenhouse Tavern in Cleveland. It has been nearly six years since chef Jonathon Sawyer became a “tuna evangelist” after attending a meeting of like-minded chefs at the Monterey Bay Aquarium. It was there that he made the decision to forgo tuna — both in his personal life and on the menus at all four of his restaurants.

It wasn’t always easy. Turning down the chance to eat famed chef Eric Ripert’s mouthwatering thin-sliced tuna over a foie gras torchon took some Superman-like strength, but for Sawyer, the mission is an important one. He’s not trying to get people to give up tuna altogether. Rather, he’s trying to raise awareness of the sheer quantities that are coming across our collective plates and serve as a gentle warning that all that fish is coming from a limited resource.

It turns out that his effort is hitting a seafood sustainability bull’s-eye.

A new study, published in Fisheries Research, reveals that the sheer amount of tuna being taken from our seas, including some species considered “vulnerable,” has increased by an astonishing 1,000% in the last 60 years — a rate that some scientists are saying is unsustainable.

Read the full story at NPR