Saving Seafood

Dr. Ray Hilborn: New Study on Fishing Effort ‘Does Not Provide Any New Insight’ on How Fishing Impacts Oceans

WASHINGTON — February 23, 2018 — A new study published in Science Magazine found that large-scale commercial fishing covers more than 55 percent of the world’s oceans. Today, Dr. Ray Hilborn, a respected fisheries expert and professor at the University of Washington’s School of Aquatic and Fishery Sciences, responded to the study in a statement, saying in part that it “does not provide any new insight on the impact of fishing on the oceans.”

“The media claims that this paper shows that fishing has a wider impact than previously known is simply wrong,” Dr. Hilborn said. “For most of the areas where there are data in this study, fish stocks are actually increasing and tuna populations are well documented and globally stable.”

Dr. Hilborn’s full statement is reproduced below:

This new study in Science using the AIS data does provide detailed information on fishing effort of specific vessels, but it does not provide anything new about the global pattern of fishing.  High seas fishing for tuna, which constitutes the majority of the “footprint” shown in the Science paper has been mapped for 40 years, and the widespread nature  of high seas tuna fishing is well known.  The footprint of bottom trawlers has been mapped in much finer scale already in many places, and the Science paper overestimates the proportion of the seabed impacted by trawls by 10 fold.

The media claims that this paper shows that fishing has a wider impact than previously known is simply wrong.   For most of the areas where there are data in this study,  fish stocks are actually increasing and tuna populations are well documented and globally stable.

The comparison to agriculture fails to note that the 50 million square kilometers under agriculture have destroyed the natural ecosystem as the plow or new pasture eliminates the native plants.   The areas fished, particularly for tunas, have changed very little.  Fishing does not impact the primary production (plants), and in very few cases does it impact the species that graze on the primary producers.  So the 50 million square kilometers of the earths’ surface that is used for agriculture is totally transformed,  most of the oceans that are being fished (high seas tuna)  have some changes in top predators abundance.

Certainly AIS data is very interesting and can let us look at specific things we could not do before, but it does not provide any new insight on the impact of fishing on the oceans.

 

Dr. Ray Hilborn talks U.S. fisheries policy at Bevan Series lecture

WASHINGTON (Saving Seafood) – January 8, 2018 – Last week, Dr. Ray Hilborn, a professor at the University of Washington’s School of Aquatic and Fishery Sciences, presented on U.S. fisheries policy and how scientists can communicate with Congress to promote good decision-making. The lecture, “Is U.S. Fisheries Policy Working? Getting the Message to Congress,” was the first of the 2018 Bevan Series on fisheries management.

The Bevan Series features “internationally recognized experts” discussing current issues facing fisheries and marine conservation. This year’s series features 10 weekly seminars held at the University of Washington in Seattle.

Read more about the Bevan Series here

Watch Dr. Hilborn’s lecture here

A description of Dr. Hilborn’s lecture is below:

The Magnuson-Stevens Fisheries Management and Conservation Act of 1976 is the primary piece of federal legislation governing fisheries whose objectives include: exploring, exploiting, conserving, and managing all fish within the exclusive economic zone; to promote domestic commercial and recreational fishing under sound conservation and management principles; to provide for the preparation and implementation, in accordance with national standards, of fishery management plans which will achieve and maintain, on a continuing basis, the optimum yield from each fishery; to encourage the development by the United States fishing industry of fisheries which are currently underutilized or not utilized by United States fishermen. Optimum yield is defined the yield from a fishery, means the amount of fish which will provide the greatest overall benefit to the Nation, particularly with respect to food production and recreational opportunities, and taking into account the protection of marine ecosystems.

This talk will focus on how the U.S. is doing with respect to these objectives, and my perspective on how scientists can let Congress know how well we are doing, and help Congress make good decisions. I will discuss the success at rebuilding fish stocks and protection of marine ecosystems, a mix of success and failure at producing benefits to food production, and recreational fishing opportunities.  I will discuss my limited experiences at communicating with Congress through invited testimony to House and Senate committee hearings over 25 years, and two separate briefings of Congressional staff.

Ray Hilborn is a Professor in the School of Aquatic and Fishery Sciences, University of Washington specializing in natural resource management and conservation.  He authored several books including Overfishing: What Everyone Needs to Know (with Ulrike Hilborn) in 2012, Quantitative Fisheries Stock Assessment with Carl Walters in 1992, and The Ecological Detective: Confronting Models With Data with Marc Mangel, in 1997. He has also published over 300 peer reviewed articles and served on the Editorial Boards of numerous journals, including seven years on the Board of Reviewing Editors of Science Magazine. He has received the Volvo Environmental Prize, the American Fisheries Societies Award of Excellence, The Ecological Society of America’s Sustainability Science Award, and the International Fisheries Science Prize. He is a Fellow of the American Fisheries Society, the Washington State Academy of Sciences, the Royal Society of Canada and the American Academy of Arts and Sciences.

 

‘Rule of Thumb’ Management Approach Is Wrong For Forage Fish, Dr. Ray Hilborn Tells U.S. Senate Subcommittee

WASHINGTON (Saving Seafood) – October 31, 2017 – At a hearing of the U.S. Senate Commerce Subcommittee on Oceans, Atmosphere, Fisheries and Coast Guard last week, respected fisheries scientist Dr. Ray Hilborn testified that fisheries managers “can do better than a one-size-fits-all” approach to managing forage fish. He also said there was “no empirical evidence to support the idea that the abundance of forage fish affects their predators.”

Dr. Hilborn’s comments came in response to questioning from Sen. Roger Wicker (R-MS) about whether fisheries managers should manage forage fish according to a “rule of thumb” approach, where fisheries are managed according to a set of broad ecological and management principals, or a “case-by-case” approach, where management is guided by more species-specific information.

Dr. Hilborn, a professor at the University of Washington’s School of Aquatic and Fishery Sciences, was part of a team of top fisheries scientists that recently examined these issues, as well as what effects fishing for forage fish species had on predator species. Their research indicated that previous studies, like a 2012 report from the Lenfest Forage Fish Task Force, may have overestimated the strength of the predator-prey relationship.

Before the hearing, Dr. Hilborn spoke with Saving Seafood about his research and his message for lawmakers.

“It’s very clear that there really are no applicable rules of thumb, that every system is independent [and] behaves differently, and we need to have the rules for each individual forage fish fishery determined by looking at the specifics of that case,” Dr. Hilborn told Saving Seafood.

He also discussed his team’s finding that forage fish abundance has little impact on their predators. They looked at nearly all U.S. forage fish fisheries, including the California Current system and Atlantic menhaden, and concluded that predator species generally pursue other food sources when the abundance of any one forage species is low.

“The predators seem to go up or down largely independent of the abundance of forage fish,” Dr. Hilborn said, adding, “For Atlantic menhaden, for their major predators, the fishery has reasonably little impact on the food that’s available to them.”

Another key message Dr. Hilborn had for the Subcommittee was that fisheries managers must determine what they want to accomplish so that scientists can advise them accordingly.

“The time has come to refocus our fisheries policy on what we actually want to achieve because rebuilding is only a means to an end,” Dr. Hilborn told Saving Seafood. “Do we want to maximize the economic value of our fisheries? Do we want to maximize jobs? Do we want to maximize food production?”

In his testimony, Dr. Hilborn praised U.S. fisheries policy that has “led to rebuilding of fish stocks and some of the most successful fisheries in the world.” He attributed this success to a variety of factors, including funding of NOAA, regionalizing fisheries management decisions, and requiring managers to follow science advice. As a result, overfishing should no longer be the top priority for fisheries managers, he testified.

“The major threats to U.S. fish stock and marine ecosystem biodiversity are now ocean acidification, warming temperatures, degraded coastal habitats, exotic species, land based run off, and pollution,” Dr. Hilborn testified. “Overfishing remains a concern for a limited number of stocks but should not continue to be the most important concern for U.S. federal fisheries policy.”

The hearing was the latest in a series examining reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act, the nation’s supreme fisheries law. It was organized by subcommittee chairman Sen. Dan Sullivan (R-AK), and focused on fisheries science.

Watch the full hearing here

Mislabeled Seafood May Be More Sustainable

November 8, 2016 — With seafood, what you see is not always what you get.

It’s no secret that mislabeling is rampant around the world. Recent studies estimate up to 30 percent of seafood served in restaurants and sold in supermarkets is actually something other than what is listed on the menu or label.

Why mislabeling happens is a little squishier. Fraud, human error or marketing ploys — combined with an often multicountry traverse from boat to restaurant — make it possible you are eating a different fish than what’s on the menu.

A University of Washington study is the first to broadly examine the ecological and financial impacts of seafood mislabeling. The paper, published online Nov. 2 in Conservation Letters, finds that in most cases, mislabeling actually leads people to eat more sustainably, because the substituted fish is often more plentiful and of a better conservation status than the fish on the label.

“One of the motivations and hopes for this study is that we can help inform people who are trying to exert their consumer power to shift seafood markets toward carrying more sustainable options,” said co-author Christine Stawitz, a UW doctoral student in the School of Aquatic and Fishery Sciences and the Quantitative Ecology and Resource Management program.

Read the full story at the University of Washington

Professor Ray Hilborn wins 2016 International Fisheries Science Prize

April 11, 2016 — SAVING SEAFOOD — Professor Ray Hilborn, of the University of Washington’s School of Aquatic and Fishery Sciences, was recognized by the World Council of Fisheries Societies for his contributions to fishery management science.

“Professor Hilborn has had an extremely impressive career of highly diversified research and publication in support of global fisheries science and conservation. Throughout his 40-year career, Ray has been a model of dynamic and innovative science, and in the application of this work to the ever-changing problems of fisheries management and conservation in both marine and freshwater ecosystems. Professor Hilborn’s Prize will be awarded at the World Fisheries Congress in Busan, South Korea in late May.”

In recent years, Professor Hilborn has been one of the organizers of the Ram legacy Database at the University of Washington, which is the most complete global database on fish stocks, biomass surveys and catch history ever assembled.  The resulting analysis and modeling from this database have not only united many fisheries scientists around the world who had been portrayed by the media as opposing each other in terms of fisheries conservation issues, but the database has also served to highlight a road map for fisheries conservation efforts over the next twenty years.

As a result of these efforts, Hilborn has been instrumental in changing the perception that fish stocks were being fished to extinction and instead has shown that when fisheries management principles are properly applied, strong stock recoveries take place.

Frustrated by the public misperception about the actual state of major fisheries, Hilborn and other colleagues have created cfood a website scientists use to communicate with journalists and the general public about fisheries science issues.  The database, and website, have been particularly helpful in countering organizations who use distorted or outdated fisheries science to alarm regulators and the public.

This story originally appeared on Seafoodnews.com, a subscription site. It is reprinted with permission.