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    • Fishing Terms Glossary

Ray Hilborn: MPAs aren’t the answer to ocean biodiversity, sustainability efforts

June 1, 2021 — A global movement to create additional marine protected areas (MPAs) has been steadily gaining traction in recent years, with the initiative picking up milestone victories in the past few months.

In January, newly inaugurated U.S. President Joe Biden signed an executive order committing to a “30 by 30” goal, whereby the United States would designated 30 percent of its land and territorial waters to conservation by the year 2030. The move heightened the potential that MPAs will be used as a tool to tackle climate change.

Read the full story at Seafood Source

On the Water in Alaska, Where Salmon Fishing Dreams Live On

April 19, 2021 — My camera lens is pressed against the window of the small floatplane as it flies below a thick ceiling of clouds. The mist clings to the hillsides of a temperate rainforest that descend steeply to the rocky coastline of southeast Alaska.

The plane banks, and a tiny village comes into view. A scattering of houses are built on stilts on the water’s edge. We circle and I see fishing boats tied up next to a large dock and a floating post office. The pilot throttles down and the pontoons skim across the glassy water inside the bay. We taxi to the public dock and I step out in front of the Point Baker general store.

Life along the Alaska coast is economically and culturally dependent on fishing. Each summer, millions of salmon — after maturing in the ocean — begin their journey back to the rivers in which they were spawned. Fishermen, along with whales, eagles and bears, share in the abundance.

Alaska is home to five species of Pacific salmon. These fish are anadromous; they begin their lives in freshwater rivers and lakes and eventually make their way down rivers and into the ocean. Depending on the species, salmon may spend between about one and seven years in the ocean before beginning their journey home to the freshwater where they were born.

The ability of salmon to find their way home is one of nature’s greatest miracles. Among other navigational aids, salmon can detect a single drop of water from its home stream mixed in 250 gallons of saltwater.

Read the full story at The New York Times

Ray Hilborn on the role of industry funding

April 12, 2021 — It is true that my research program receives funding from the fishing industry. Industry funding makes up about 22% of my total funding, while I receive similar amounts from environmental foundations, Universities, and private individuals unassociated with the fishing industry. In addition, I receive funding from environmental NGOs, including over the years the National Resources Defense Council, The Nature Conservancy, Environmental Defense Fund, and the Pew Institute for Ocean Science.

Here is my response to those who say this means you should not believe what I say about fisheries:

Science is collaborative, not individual

When I say that all fish will not be gone by 2048 or that fish stocks are increasing in abundance in much of the world, these are not personal opinions, but results of scientific papers authored by a large group of people, each of whom stands by the results of the paper.

When the claim that “all fish would be gone by 2048” came out, the lead author on that paper, Boris Worm, and I agreed to meet together to understand why we had different perspectives. We organized a group of about 20 scientists and looked at trends in fish stock abundance where it was measured and found no sign that these stocks were generally declining. In 2009, we published a paper in Science Magazine showing this, and the lead author was Boris Worm. It is absurd to say that because I, one of 21 authors, had received funding from the fishing industry this work was biased.

I was the first author on the 2020 follow-up paper in Proceedings of the National Academy of Sciences, Effective fisheries management instrumental in improving fish stock status, that showed that fish stocks were actually increasing in much of the world, but this paper had 23 authors, including professors from several different universities, an employee of The Nature Conservancy, a member of the Board of Directors of The Nature Conservancy, a member of the Board of Directors of Environmental Defense, and an employee of the Wildlife Conservation Society all of whom stand by our conclusions. It is not my work, but group work, and where I get some of my funding is largely irrelevant.

Almost every paper with my name on it in fisheries has a range of authors and many of them have at least one author representing conservation organizations.

Look at the data and what was actually done

My research is not cloaked in secrecy. In every research paper I have been a part of, we tell the reader what data we used and how we used it to get the results we did. This is the methodology section. We describe our data and methods so you, or anyone else, can redo and/or verify the analysis.

This is an important part of science. I have criticized the methodology section of others before, and others have criticized mine—this is what makes information evolve closer to truth. Unfortunately, that part of science gets lost in press releases and hyperbolic headlines, which was a large reason I started this website—to explain the methodology sections of important fisheries papers to give the public (and journalists) proper context. For example, we have been highly critical of Oceana’s seafood fraud methodology on this website, but we appreciate the work they do and gave them a platform to respond to our criticism.

Read the full story at Sustainable Fisheries UW

OREGON: Crab fishery adapts following climate shock event

March 10, 2021 — An unprecedented marine heat wave that led to a massive harmful algal bloom and a lengthy closure of the West Coast Dungeness crab fishery significantly altered the use of ocean resources across seven California crab-fishing communities.

The delayed opening of the 2015-16 crab-fishing season followed the 2014-16 North Pacific marine heat wave and subsequent algal bloom. The bloom produced high levels of the biotoxin domoic acid, which can accumulate in crabs and render them hazardous for human consumption.

That event, which is considered a “climate shock” because of its severity and impact, tested the resilience of California’s fishing communities, researchers from Oregon State University, the University of Washington, and National Oceanic and Atmospheric Administration’s Northwest Fisheries Science Center found.

The study is the first to examine impacts from such delays across fisheries, providing insight into the response by the affected fishing communities, said James Watson, one of the study’s co-authors and an assistant professor in OSU’s College of Earth, Ocean, and Atmospheric Sciences.

Read the full story at the Newport News Times

University of Washington and SFP release comprehensive new FIP database

February 25, 2021 — The Hilborn Lab at the University of Washington and the Sustainable Fisheries Partnership (SFP) have released an updated version of their Fishery Improvement Projects Database (FIP-DB). UW and SFP, which released the update on Wednesday, 24 February, are calling the database the “world’s most comprehensive resource for current and historical information on fishery improvement projects (FIPs),” with data from all the globe’s 249 FIPs.

Nicole Baker, a research scientist for the Hilborn Lab, said the database will function as a guide to help analyze and implement new FIP measures.

Read the full story at Seafood Source

Washington state salmon report offers warning to Alaska

February 17, 2021 — A report on Washington state’s dwindling wild salmon populations offers a warning to Alaska, where several stocks have registered concerning declines over the past years.

Washington’s 2020 State of the Salmon in Watersheds report chronicled a bleak panorama, with 14 of the state’s species listed as endangered. While conversation efforts have succeeded in revitalizing some salmon runs in Washington, the report said fish stocks in the Pacific Northwest face an uphill battle.

Read the full story at Seafood Source

Bait and Switch: Mislabeled Salmon, Shrimp Have Biggest Environmental Toll

January 14, 2021 — Seafood is the world’s most highly traded food commodity, by value, and the product is hard to track from source to market. Reports of seafood mislabeling have increased over the past decade, but few studies have considered the overall environmental effects of this deceptive practice.

A study by Arizona State University, the University of Washington and other institutions examined the impacts of seafood mislabeling on the marine environment, including population health, the effectiveness of fishery management, and marine habitats and ecosystems.

Read the full story at Seafood News

Rigorous management practices have led to successful rebuilding of several West Coast groundfish stocks

January 14, 2021 — The following was released by the Pacific Fishery Management Council:

A new paper published in Nature Sustainability, “Identifying Management Actions that Promote Sustainable Fisheries,” demonstrates that rigorous management practices have helped rebuild depleted fish stocks worldwide and underscores the fact that greater investment in fisheries management generally leads to better outcomes for fish populations and the fisheries they support.

The Pacific Fishery Management Council, which manages commercial and recreational ocean fisheries on the West Coast, was one of two dozen international management and research entities collaborating on this study.

The study was led by Michael Melnychuk, research scientist at the School of Aquatic and Fishery Sciences at the University of Washington.  Management practices and outcomes adopted by the Pacific Council to rebuild West Coast groundfish stocks contributed to the study.

“Rebuilding these overfished stocks was a painful process for West Coast fishermen,” said Pacific Council Executive Director Chuck Tracy. “This study shows that their short-term sacrifices paid off in the long run, leading to more sustainable fisheries for future generations.”

“Rebuilding these stocks required collaboration between a lot of different people, from fishermen to scientists to environmentalists,” said Pacific Council Chair Marc Gorelnik. “It was a tough process, but in rebuilding these stocks, we also built long-lasting, valuable relationships. Responsible fisheries management requires sacrifices, but it pays off. This is a really hopeful story.”

Read the full release here

The science of sustainable seafood, explained

January 13, 2021 — The following was released by Sustainable Fisheries UW:

Commercial fishing is vital to global food production. Wild-caught fish contain every essential amino acid, require no land or freshwater, and are a renewable resource when managed sustainably. In addition to providing access to healthy, low-impact protein, the seafood industry is worth over a trillion dollars annually and employs 40 million people—ensuring its sustainability is vital to economies all over the world. We explain seafood industry regulations in our section on fishery management—but first, the fundamental key to understanding sustainable seafood is grasping the science of catching fish.

Fisheries are composed of fish stocks and the fishing fleet that catches them. A fish stock is simply a harvested population. It refers to one specific species in one particular place, like Gulf of Maine cod. A fishery is the intersection of a stock (or group of stocks) and the means of harvest. Fishing fleets can use several different methods to capture fish, each method describes the fishery and guides management.

A fishery is sustainable when the amount harvested does not compromise future harvests.

Fishery science is the process that answers that question, primarily through stock assessments. A stock assessment uses several different kinds of data to understand the health of a stock and determine how much can be fished. You can think of the data as the A,B,Cs of stock assessments – abundance, biology, and catch.

  • Abundance is how many fish are in the population; estimates of abundance are made based on samples that are gathered using various methods.
  • Sampling can also collect biological data such as: age and length from which we can estimate levels of natural mortality and fishing mortality. Together, these data help estimate the reproductive rate of a population, which in turn allows us to predict how many fish will be around next year.
    • During sampling, environmental data like temperature, salinity, dissolved oxygen and other ecological variables are also collected.
  • Catch data are our historical records of how many or what weight of fish was caught during a calendar year or a fishing season.

Read the full release here

More management measures lead to healthier fish populations

January 12, 2021 — The study, led by Michael Melnychuk of the University of Washington’s School of Aquatic and Fishery Sciences, draws upon the expertise of more than two dozen researchers from 17 regions around the world. The research team analyzed the management practices of nearly 300 fish populations to tease out patterns that lead to healthier fisheries across different locations. Their findings confirmed, through extensive data analysis, what many researchers have argued for several years.

“In general, we found that more management attention devoted to fisheries is leading to better outcomes for fish and shellfish populations,” Melnychuk said. “While this won’t be surprising to some, the novelty of this work was in assembling the data required and then using statistical tools to reveal this pattern across hundreds of marine populations.”

The research team used an international database that is the go-to scientific resource on the status of more than 600 individual fish populations They chose to analyze 288 populations that generally are of value economically and represent a diversity of species and regions. They then looked over time at each fish population’s management practices and were able to draw these conclusions:

  • In regions of the world where fish and shellfish populations are well studied, overall fisheries management intensity has steadily increased over the past half century
  • As fisheries management measures are implemented, fishing pressure is usually reduced toward sustainable levels, and population abundance usually increases toward healthy targets
  • If fish populations become depleted as a result of overfishing, a rebuilding plan may be implemented. These plans tend to immediately decrease fishing pressure and allow populations to recover
  • If strong fisheries management systems are put in place early enough, then overfishing can be avoided and large, sustainable catches can be harvested annually, rendering emergency measures like rebuilding plans unnecessary

Read the full story at Science Daily

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