Saving Seafood

86% of Global Tuna Catch Continues to Come from Stocks at Healthy Levels, But Some Stocks Remain Overfished

April 4, 2019 — The following was released by the International Seafood Sustainability Foundation:

Of the total tuna catch, 86% came from stocks at “healthy” levels — an unchanged share since last reported in October 2018 — according to the March 2019 International Seafood Sustainability Foundation (ISSF) Status of the Stocks report. Skipjack tuna stocks — which remain at healthy levels in all ocean regions — still comprise over one-half of the total catch.

ISSF publishes its signature Status of the Stocks report at least twice each year using the most current scientific data on major commercial tuna stocks.

The fishing mortality rating was changed for two stocks since the previous report: The Fishing Mortality rating for both Mediterranean albacore and Western Pacific yellowfin was modified from “yellow” to “green.” The ISSF Scientific Advisory Committee (SAC) determined that this change was needed to harmonize those ratings and the report’s ratings methodology.

Though many of the recent broad indicators of overall global tuna stock health are positive, there are several stocks of concern that should be noted:

  • The Indian Ocean yellowfin stock has again been rated both as overfished and as suffering overfishing after a new stock assessment presented by the Indian Ocean Tuna Commission (IOTC) Scientific Committee in late 2018.
  • Similarly, the Pacific Ocean bluefin stock is also considered to be overfished, and overfishing of this stock continues.
  • Eastern Pacific bigeye is experiencing overfishing. Fishing mortality for this species is high.
  • Two consecutive assessments have concluded that Atlantic Ocean bigeye is overfished and that overfishing is still occurring.​

Key Statistics in the Report

  • Total catch: In 2017, as reported in the new report, the total major commercial tuna catch was 4.8 million tonnes. More than half of the total catch (58%) was skipjack tuna, followed by yellowfin (28%), bigeye (8%) and albacore (5%). Bluefin tunas (3 species) accounted for only 1% of the global catch. These percentages changed only slightly from the October 2018 Status of the Stocks report.
  • Abundance or “spawning biomass” levels: Globally, 65% of the 23 stocks are at a healthy level of abundance, 13% are overfished and 22% are at an intermediate level. In terms of total catch, 86% come from healthy stocks, 10% from overfished stocks and 4% from stocks at an intermediate level. Unchanged from the last report, the stocks receiving orange scores — indicating overfished status — were Atlantic Ocean bigeye, Pacific Ocean bluefin and Indian Ocean yellowfin.
  • Fishing mortality levels: 78% of the 23 stocks are experiencing a well-managed fishing mortality rate, 18% are experiencing overfishing, and 4% have a high fishing mortality rate.
  • Largest tuna catches by stock: The five largest catches in tonnes, unchanged since the previous report, are Western Pacific Ocean skipjack, Western Pacific Ocean yellowfin, Indian Ocean skipjack, Indian Ocean yellowfin and Eastern Pacific Ocean skipjack.
  • Tuna production by ocean region: More than half (52%) of the world’s tuna is harvested from the Western and Central Pacific Ocean, followed by the Indian Ocean (20%), Eastern Pacific Ocean (13%) and Atlantic Ocean (11%). Catch from Pacific-wide stocks accounts for around 3% of the global catch, while catch in the Southern Hemisphere accounts for less than 1%.
  • Tuna production by fishing gear: 65% of the catch is made by purse seining, followed by longline (11%), pole-and-line (8%), gillnets (4%) and miscellaneous gears (12%). These percentages have changed only slightly since the October report.

About the Report

There are 23 stocks of major commercial tuna species worldwide — 6 albacore, 4 bigeye, 4 bluefin, 5 skipjack, and 4 yellowfin stocks. TheStatus of the Stocks summarizes the results of the most recent scientific assessments of these stocks, as well as the current management measures adopted by the RFMOs. Updated several times per year, Status of the Stocks assigns color ratings (green, yellow or orange) using a consistent methodology based on three factors: Abundance, Exploitation/Management (fishing mortality) and Environmental Impact (bycatch).

ISSF produces two reports annually that seek to provide clarity about where we stand — and how much more needs to be done — to ensure the long-term sustainability of tuna stocks: the Status of the Stocks provides a comprehensive analysis of tuna stocks by species, and the Evaluation of the Sustainability of Global Tuna Stocks Relative to Marine Stewardship Council (MSC) Criteria provides scores for the stocks and RFMOs based on MSC assessment criteria. The MSC-certified fisheries list (Appendix 2) in Status of the Stocks complements the Evaluation report.Together, these tools help to define the continuous improvement achieved, as well as the areas and issues that require more attention.

In addition, ISSF maintains a data-visualization tool based on its Status of the Stocks report. ​The “Status of the Stocks Tool” is located on the ISSF website and accessible through the Status of the Stocks overview page; users can easily toggle through tuna stock health indicators and filter by location, species and other key stock health and catch factors.

NOAA to cut dogfish quota in half

April 4, 2019 — Federal fishing regulators say they’re reducing the quota for a small species of shark that is fished commercially off the East Coast.

Fishermen catch spiny dogfish off the eastern states, from Maine to North Carolina. The National Oceanic and Atmospheric Administration says quota for the dogfish will be cut by nearly 50 percent this year. That will leave the commercial quota at about 20.5 million pounds.

The agency says the quota will climb back up in 2020 and 2021 because the dogfish population is expected to grow. That would bring with it a reduced risk of overfishing the species, which is harvested for use as food.

Dogfish are primarily consumed in Europe. Members of the seafood industry have tried marketing dogfish to U.S. consumers, but it remains an uncommon menu item.

Last year, the Cape Cod Commercial Fishermen’s Alliance received a Saltonstall-Kennedy grant of about $37,000 from NOAA for a marketing and promotion project centered on raising the profile of dogfish — including changing the name of the species — to make it more attractive to consumers.

Read the full story at the Gloucester Daily Times

MARYLAND: How can we save oysters if we harvest them faster than they reproduce?

March 27, 2019 — This year’s Maryland General Assembly session marks a critical juncture for Chesapeake Bay oysters. Policies under debate in the halls of the legislature will chart the course for oysters’ next 100 years. Now is the time to make the changes necessary to protect the oyster.

Before the session, the bad news arrived. In November, the state released the first comprehensive stock assessment of Maryland oysters. It found that the bivalves’ population had declined by half since 1999 — from about 600 million adult oysters to the current population of 300 million. The population decline is bad for both the Bay’s ecology and for the watermen who depend on the wild harvest to make their living.

The oyster’s significant decline is a symptom of a long history of overharvesting, disease and pollution in the Bay. The current population of oysters in Maryland’s portion of the Bay is less than 10 percent of the number of oysters harvested each year before 1900, according to the stock assessment.

While we can’t expect to re-create the natural state of the Bay before significant human intervention, Maryland can’t continue with business as usual. To reduce Bay pollutants, create more habitat for fish species and preserve the oyster for future generations, we must put Maryland on a path toward oyster recovery.

Read the full story at the Bay Journal

Study maps where tunas, sharks and fishing ships meet

March 26, 2019 — Overfishing is rapidly pushing many of the world’s sharks and tunas toward extinction. The world’s fastest known shark, the shortfin mako, for example, was recently uplisted to endangered on the IUCN Red List, its decline mostly attributed to overfishing.

But researchers are only beginning to figure out where and when people fish them the most. Now, a new study has some answers.

By analyzing the trails of more than 900 fishing vessels and more than 800 sharks and tunas in the northeast Pacific, researchers have identified regions where the two tend to overlap. This information, researchers say, can be used to manage fisheries, especially in the high seas, the swaths of ocean that lie beyond the jurisdiction of individual countries.

“These fish [sharks and tunas] may travel thousands of miles every year, crossing international boundaries and management jurisdictions,” said Timothy White, lead author of the study and a graduate student in biology at Stanford University, California. “In order to sustainably manage them, we need to know where they migrate and where people fish them, but this info is surprisingly difficult to gather for sharks and tunas of the open ocean.”

Read the full story at Mongabay

Striped bass population in trouble, new study finds

February 8, 2019 — Striped bass, one of the most prized species in the Chesapeake Bay and along the Atlantic Coast, are being overfished according to a new assessment of the stock’s health — a finding that will likely trigger catch reductions for a species long touted as a fisheries management success.

The bleak preliminary findings of the assessment were presented to the Atlantic States Marine Fisheries Commission, a panel of fisheries managers, on Wednesday. The full analysis was not available. Its completion was delayed by the partial government shutdown, which sidelined biologists in the National Marine Fisheries Service who were working to complete the report.

But, noted Mike Armstrong of the Massachusetts Division of Marine Fisheries, who also chairs the ASMFC’s Striped Bass Management Board, the final results “will likely be the same when [the report] comes out.”

The board asked its technical advisers to estimate the level of catch reductions needed to bring the stock above management targets at its May meeting, when the stock assessment is expected to be ready for approval.

“We know it is going to be pretty drastic,” said John Clark of the Delaware Division of Fish and Wildlife, a member of the board.

The findings of the assessment were a bit of a surprise. Though the overall population was known to be declining, striped bass are often considered a signature success for fishery management.

The overharvest of striped bass, also called rockfish, sent their population to critically low levels in the early 1980s, eventually leading to a catch moratorium. The population rebounded, allowing catches to resume, and by 1997 the population recovered to an estimated 419 million fish aged one year or more.

Read the full story at the Bay Journal

NOAA Fisheries Adjusts the Atlantic Herring Specifications for 2019

February 7, 2019 — The following was released by NOAA Fisheries:

Today, we are adjusting Atlantic herring specifications for 2019. This in-season adjustment reduces 2018 Atlantic herring specifications and sub-annual catch limits (ACLs) for 2019 to prevent overfishing and lower the risk of the stock becoming overfished. All other Atlantic herring specifications, including river herring and shad catch caps, remain unchanged from 2018.

The 2018 Atlantic herring stock assessment concluded that while Atlantic herring was not overfished and overfishing was not occurring in 2017, Atlantic herring catch would need to be reduced to prevent overfishing and lower the risk of the stock becoming overfished.

At its September 2018 meeting, the New England Fishery Management Council requested we use an in-season adjustment to reduce Atlantic herring catch limits for 2019 to prevent overfishing. We published a proposed rule in November 2018. The herring acceptable biological catch (ABC) we proposed for 2019, as well as the resulting ACL and sub-ACLs, while consistent with methods used to set recent specifications, were higher than limits recommended by the Council.

The Council reviewed our proposed Atlantic herring catch limits for 2019 at its December 2018 meeting and recommended that we further reduce herring catch limits to better account for scientific uncertainty and achieve conservation and management objectives. For these reasons, we are reducing the herring specifications and sub-ACLs for 2019 consistent with the Council’s recommendations.

For more information read the rule as filed in the Federal Register and posted on our website.

ASMFC Summer Flounder, Scup and Black Sea Bass Board Approves Status Quo Measures for 2019 Recreational Black Sea Bass Fishery

February 7, 2019 — The following was released by the Atlantic States Marine Fisheries Commission:

The Atlantic States Marine Fisheries Commission’s Summer Flounder, Scup and Black Sea Bass Management Board approved status quo measures for the 2019 black sea bass recreational fishery (see Table 1). This action is based on the recommendations of its Technical Committee, which found that status quo measures are not likely to exceed the coastwide recreational harvest limit for 2019. Based on the most recent most stock assessment, the stock is estimated to be above the biomass target and not experiencing overfishing.

The Board also approved proposals from Virginia and North Carolina to participate in the February 2019 recreational fishery specified by NOAA Fisheries. The season will be open from February 1-28, 2019 with a 12.5 inch minimum size limit and 15 fish possession limit. To account for any harvest in February, Virginia and North Carolina will adjust their management measures later in the season, if necessary. Recreational anglers should verify regulations with their respective states.

Read the full release here

We’re accidentally driving this extremely ugly fish to extinction

January 14, 2019 — The Atlantic wolffish is not an attractive beast.

Its appearance is characterized by its large, fang-like teeth (where it earns its name), which are used to crush prey like crabs, lobsters and sea urchins. Its throat is also peppered with more serrated teeth.

It may come as a surprise then to hear that their numbers have dwindled relentlessly over the last century partly as a result of overfishing.

  • In the US, catches of Atlantic wolffish declined from over 1,200 tons per year to around 30 tons per year between the 1980s and the 2000s.
  • In the UK, wolffish have declined in English and Welsh trawl fisheries by 96% since 1889.
  • In the Baltics, the fish’s population has been classed as endangered, meaning it has a high risk of extinction in the wild.

But we don’t eat them. So why are they being overfished to the point of extinction?

Read the full story at Business Insider

For decades, scientists thought sturgeon had vanished from Maryland waters. They’re delighted to be wrong

January 3, 2019 — When David Secor started his career at the Chesapeake Biological Laboratory almost three decades ago, one of his first projects concluded that the Atlantic sturgeon had all but disappeared from polluted Maryland waters.

The population of the massive fish — often 14 feet long — that once swam with dinosaurs plummeted in the 1900s amid rising demand for their eggs, better known as caviar. Overfishing devastated the species for the same reason caviar is such an expensive delicacy: Sturgeon roe is scarce because females don’t produce it until they’re at least 9 or 10 years old. Even then, the fish don’t spawn every year.

So Secor and other biologists were shocked and then intrigued when, over the past decade, watermen and recreational fishermen started spotting what looked unmistakably like sturgeon flopping and splashing around the Nanticoke River on Maryland’s Eastern Shore. One even landed on the deck of a fisherman’s boat.

Read the full story at the Carroll County Times

Mislabeling Food in Peru Stirs Overfishing Worries

December 27, 2018 — In Peru, ceviche is not just the national dish but also a way of life.

The country may be best known for its Inca heritage but it is also a fishing superpower while its acclaimed culinary renaissance is arguably a greater source of local pride than Machu Picchu.

Even high in the Andes, residents are accustomed to lunching on the marinated seafood salad made with fresh fish trucked straight up from the Pacific Coast.

But what may shock Peruvians is learning that due to mislabeling they are unwittingly consuming endangered shark species. According to Juan Carlos Riveros, science director for the Peruvian arm of the international marine conservation nonprofit Oceana, 8 in 10 customers here fall for the misleading practice.

A recent DNA study by nonprofits Oceana and ProDelphinius found that 43 percent of the 450 samples taken from fish in Peruvian restaurants, supermarkets and fishing terminals were mislabeled. The reason for that is simple, conservationists say; the number of fish in Peru’s heavily exploited waters is dwindling. Sometimes inadvertent and sometimes deliberate, mislabeling a catch is always ecologically damaging given the dramatic and unsustainable fall in shark populations around the world.

Read the full story at U.S. News