Saving Seafood

Fisheries scientists to address flaws in past forage fish research

WASHINGTON (Saving Seafood) – May 2, 2016 – Dr. Ray Hilborn, a marine biologist and fisheries scientist at the University of Washington, has launched a new initiative aimed at addressing key issues surrounding forage fish science and the impacts of forage fishing on predator species. Dr. Hilborn’s Forage Fish Project is one of several scientific efforts occurring in the next few months to expand the existing body of scientific research on forage fish.

Comprised of 14 renowned fisheries scientists from around the globe, the Forage Fish Project held its inaugural conference last month in Hobart, Australia, where it identified shortcomings in the existing forage fish research. Specifically, it found several issues with work produced by the Lenfest Forage Fish Task Force, whose April 2012 report, “Little Fish, Big Impact,” concluded forage fish are vulnerable to overfishing, among other findings.

The Forage Fish Project, which includes two members of the Lenfest Task Force, began work to address these flaws, with the goal of producing an accompanying study later this year.

In Hobart, Project members found that most of the models used in previous forage fish studies, like the Lenfest Task Force report, left out factors such as the natural variability of forage fish stocks, and the extent of size overlap between fisheries and predators. The group also found multiple indications that the Lenfest study greatly overstated the negative impact of forage fishing on predator species.

“Most [food web] models were not built with the explicit intention of evaluating forage fish fisheries, so unsurprisingly many models did not include features of forage fish population biology or food web structure that are relevant for evaluating all fishery impacts,” according to minutes from the Hobart meeting.

Two upcoming fishery management workshops will also evaluate forage species on the East and West Coasts of the U.S., the first organized by the Southwest Fisheries Science Center and the Pacific Fishery Management Council. The workshop, which will be held in La Jolla, Calif., from May 2-5, will focus on how to improve stock assessment methods for northern anchovy and other coastal pelagic species. Attendees will evaluate model-based assessment approaches based on routinely assessed pelagic species from around the world, consider non-assessment approaches to estimate fish stocks, and develop recommendations for how the SWFSC should evaluate coastal pelagic fish stocks in the future.

A similar forage fish workshop will be held May 16-17 in Portland, Maine. This workshop will focus on Atlantic herring, with the goal of establishing a rule to specify its acceptable biological catch (ABC), the recommended catch level for any given fish species. An effective ABC rule will consider the role of Atlantic herring in the ecosystem, stabilize the fishery at a level that will achieve optimum yield, and address localized depletion in inshore waters.

Ultimately, these various forage fish workshops and projects are striving to use the best available science to update previous research and determine sound management practices for forage species.

Read the full minutes from the Forage Fish Project conference in Hobart, Australia

Learn more about the upcoming coastal pelagic species workshop in La Jolla, Calif.

Learn more about the upcoming Atlantic herring workshop in Portland, Maine

As Pacific sardine collapse worsens, scientists worry about possible ripple in the ecosystem

April 19, 2016 — Nearly a year into a West Coast sardine fishing ban enacted to protect the collapsing population, the fish formerly worth more than $8 million to Oregon’s economy have shown no signs of a comeback.

New federal research indicates numbers of the small, silvery, schooling fish have plummeted further than before the fishing moratorium, dashing any hope of lifting it in 2016.

With the current sardine population hovering at 7 percent of its 2007 peak, fishermen now say they expect to wait a decade or more to revive the fishery.

“I don’t want to take a pessimistic view, but I would think we’ll be shut down until 2030,” said Ryan Kapp, a Bellingham, Washington, fisherman who advises the Pacific Fishery Management Council on sardines and other fish.

Sardines aren’t struggling in isolation. Other fish near the bottom of the marine food web, such as anchovies and herring, are also down. The shortage of sustenance is rippling upward to create crises for predator species from seals to seabirds.

Researchers can’t tell exactly what’s driving the die-off, nor how long it will last. Some say the crash can be attributed to cyclical boom-and-bust population dynamics sardines have always exhibited.

Read the full story at The Daily Astorian

Bay anchovies appear to be more important than menhaden in predators’ diets

December 7, 2015 — The Chesapeake Bay may be the best-studied estuary in the world, but a group of scientists attending a recent workshop were surprised about how little they knew about what predatory fish eat.

After all, menhaden — dubbed by some as the “most important fish in the sea” would also be the “most important” fish in the Bay, right?

Apparently not. That honor, were one species to be singled out, might belong to the tiny bay anchovy — a fish that rarely grows more than 3–4 inches in length and typically doesn’t live longer than a year.

“They’re the most abundant fish in the Bay,” said Ed Houde, a fisheries scientist with the University of Maryland Center for Environmental Science, who helped organize the workshop. “They’re really important in the Bay’s food web.”

An analysis of 12 years of Baywide diet information for five major predators prepared for the workshop found that bay anchovy was a significant portion of the diet for four of those species. Menhaden was important for only one, striped bass, and even for them, bay anchovy were more important.

“Menhaden came out not as high on the list as people thought it was going to be,” Houde said. “It was an important prey, but it certainly wasn’t in the top three or four.”

Even more significantly, the analysis showed that the Bay’s food web is less of a fish-eat-fish world than popularly thought, even among many scientists. A host of unheralded species, from worms to clams to crustaceans, are major food sources for the Chesapeake’s predatory fish.

Read the full story at Bay Journal

 

Concerns over anchovy numbers prompt plan for new stock assessment

November 16, 2015 — SANTA CRUZ, Calif. — Amid concerns that the anchovy population along the West Coast might have “collapsed” due to environmental factors, regulators committed Monday to update a 20-year-old stock assessment for the fish, but not to enact stricter harvest rules as some groups had hoped.

The Pacific Fishery Management Council, a 19-member policy making group consisting of fishery representatives from Western states, laid out a plan to assess the anchovy stock by next fall, which the National Oceanic and Atmospheric Administration hasn’t done since 1995.

At the council meeting, federal scientists reported that while surveys have found very low numbers of anchovy adults and eggs, they’ve also detected high numbers of young anchovy. It is unclear, though, what that means for the population’s sustainability.

Because of a lack of comprehensive information, the anchovy stock has been subject to speculation. Like sardines, anchovy numbers often fluctuate. Conservationists, U.S. Fish and Wildlife and Monterey Bay whale watching tour companies still worry that the current fishing quotas could be too high and affecting other animals, such as whales, birds and sea lions.

“This is a victory because we’ve been asking for an assessment for three years now,” said Geoff Shester, the California program manager for the conservation group Oceana. “That said, the council ignored the warning signs and impacts on wildlife, and they’re still basing their regulations on a 20-year-old population estimate.”

Read the full story at Santa Cruz Sentinel

 

PFMC Action Takes Scientific Approach to Anchovy Management

November 16, 2015 — The following was released by the California Wetfish Producers Association:

On Sunday November 15, the Pacific Fishery Management Council received a presentation from the Southwest Fishery Science Center, stating that recent year field surveys, particularly in 2015, have documented record abundance of eggs and juvenile anchovies along the entire west coast. The Center also signaled their intent to conduct a stock assessment in 2016, preceded by a scientific workshop to determine the best method to assess anchovy fluctuations, as recommended by the Scientific and Statistical Committee (SSC).   The management team and advisory subpanel supported this stepwise scientific approach, noting that even though anchovy landings ticked upward in 2015, the small fishery in Monterey was well below harvest limits, and recent surveys signaling significant new recruitment were optimistic signs of increased abundance.

Environmental activists, while pleased with news of the upcoming stock assessment, pleaded for the Council to establish interim measures in the meantime, using the “point of .concern” framework built into the CPS management plan to reduce the harvest limit, which would likely close the fishery until the stock assessment was completed. Public testimony concluded with statements from several fishermen from Monterey and southern California, along with two spotter pilots, who testified to the amazing abundance of anchovy they have witnessed in recent years. In addition to Monterey fishermen who have fished anchovies for 50 years, Corbin Hanson, a southern California fisherman who saw literally miles of anchovies along the central coast when he drove his vessel from southern California to Monterey this summer, testified: “Anchovies are probably the most abundant fish in our waters! I spend the majority of my time fishing these waters and can testify to this fact.”

The Council deliberated on the anchovy issue on Monday morning, November 16.   They ultimately decided to proceed with the stepwise approach supported by the management team, advisory subpanel and the SSC.   This will assure that recent year data will be incorporated into the stock assessment. The Council also asked the CPS management team to analyze various options for active management.

This analysis will require significant work, and the Department of Fish and Wildlife will need to age the backlog of anchovy samples in time for the workshop next spring. However, this scientific approach is the best approach to quantify the current abundance of anchovy, and will lead to a new assessment that will benefit both the ecosystem and the fishing community. California anchovy fishermen and processors appreciate the consideration that Council members gave to fishermen’s testimony. “Even though landings are small, the anchovy fishery is very important to Monterey’s wetfish industry,” says Diane Pleschner-Steele, executive director of the non-profit California Wetfish Producers Association. “We all thank the Council for using science, not politics, in its decision. Council members recognized that a sound management decision requires that all evidence of recent anchovy recruitment be considered.”

View a PDF of the release here

 

D.B. PLESCHNER: Anchovy collapse simply a manufactured ‘crisis’

November 15, 2015 — If you follow news about the Monterey Bay, you’ve undoubtedly heard the recent outcry by environmentalists in the media claiming the anchovy population in California has collapsed and the fishery must be closed immediately.

The current controversy stems largely from a study funded by environmental interests that claims an apocalyptic decline of 99 percent of the anchovy population from 1951 to 2011.

However, fishermen have seen a surge in anchovies in recent years. Data collected at the near shore Southern California Coastal Ocean Observing System stations and other recent surveys also document a big upswing in anchovy numbers. For example, a 2015 NOAA rockfish cruise report found that “catches of [Pacific sardine and northern anchovy] larvae and pelagic juveniles were the highest ever in the core [Monterey Bay to Point Reyes] and north and still relatively high in the south.” Yet the recent study bases its conclusion on outdated historic anchovy egg and larval samples, not recent observation.

Outdated data didn’t stop extremists from seizing on the study to manufacture an anti-fishing crisis for anchovy where none exists. They’re now lobbying the Pacific Fishery Management Council for an emergency closure of the small anchovy fishery in Monterey Bay, saying the current anchovy catch limit of 25,000 metric tons is dangerously high.

In reality, anchovy management employs an extremely precautionary approach, capping the allowed harvest at 25 percent of the estimated population. Josh Lindsay, policy analyst for the National Marine Fisheries Service, which enforces the fishing cap, says, “We took the overfishing limit and told the fishing fleet that they could only catch 25,000 metric tons. That’s a pretty large buffer built into our management.”

Read the full opinion piece at the Santa Cruz Sentinel

 

CALIFORNIA: Anchovy population has not collapsed

November 11, 2015 — I’ve been fishing in Monterey and along the West Coast for more than 30 years and I’m one of only about eight fishermen who fish anchovy in Monterey Bay. I’m shocked at the recent outcry in the media that claims the anchovy population has collapsed!

Environmentalists who are calling for the immediate closure of our local anchovy fishery are basing their claims on a flawed study that deliberately omits data from recent years showing a huge upswing in the anchovy population.

Read the full story at Santa Cruz Sentinel

CALIFORNIA: Plentiful anchovies far from collapse

November 10, 2015 — I’ve been fishing for more than 50 years up and down the West Coast and I’m shocked at all the hysterical claims I’ve read in the media recently about the anchovy “collapse.” Much of the hype stemmed from an anchovy study still in peer review, but the truth of the matter is that its conclusions are disastrously wrong!

I’m one of a handful of fishermen who fish anchovy in Monterey. I’m on the water nearly every day and I’ve seen a big surge in the anchovy population in recent years. Anchovies now stretch from the “pinheads” fishermen see in Southern California all the way up the coast past Half Moon Bay, where a large group of whales was recently spotted feeding on anchovies.

Read the full story at Monterey Herald