UW News

School of Aquatic and Fishery Sciences


November 17, 2017

When to fish: Timing matters for fish that migrate to reproduce

Alaska sockeye salmon.

A new University of Washington study points to yet another human factor that is hampering the ability of fish to reproduce: the timing of our fishing seasons. The study considers how the timing of fishing efforts might disproportionately target certain fish and change the life history patterns of entire populations.


September 18, 2017

Catching a diversity of fish species — instead of specializing — means more stable income for fishers

The industrial croaker fishery off the coast of Uruguay is one of the fisheries where management strategies are being implemented in strong cooperation among fishers, managers and scientists. Credit: Sebastián Jiménez /DINARA

Researchers analyzed nearly 30 years of revenue and permitting records for individuals fishing in Alaskan waters and tracked how their fishing choices, in terms of permits purchased and species caught, influenced their year-to-year income volatility.


September 14, 2017

Old fish few and far between under fishing pressure

head of old halibut fish

A new study by University of Washington scientists has found that, for dozens of fish populations around the globe, old fish are greatly depleted — mainly because of fishing pressure. The paper, published online Sept. 14 in Current Biology, is the first to report that old fish are missing in many populations around the world.


September 13, 2017

Climate change challenges the survival of fish across the world

john day river

  Climate change will force many amphibians, mammals and birds to move to cooler areas outside their normal ranges, provided they can find space and a clear trajectory among our urban developments and growing cities. But what are the chances for fish to survive as climate change continues to warm waters around the world? University…


August 24, 2017

Scientists to create digital encyclopedia of 3-D vertebrate specimens

snake scan

A $2.5 million National Science Foundation grant will daylight thousands of specimens from their museum shelves by CT scanning 20,000 vertebrates and making these data-rich, 3-D images available online to researchers, educators, students and the public. The University of Washington is a partner institution contributing most of the fish and bat scans.


August 16, 2017

Modern genetic sequencing tools give clearer picture of how corals are related

James Dimond snorkeling to collect coral in Belize. He collected 27 coral samples from different environments and with a range of branch thicknesses.

As corals face threats from warming oceans, a new study uses modern genetic-sequencing tools to help reveal the relationships between three similar-looking corals.


July 17, 2017

Bottom-trawling techniques leave different traces on the seabed

boat with net

Bottom trawling techniques are not all created equal. The most common, otter trawling, removes about 6 percent of the animal and plant life from the seabed, while other methods remove closer to one third.


June 1, 2017

Video shows invasive lionfish feasting on new Caribbean fish species

the ember goby

Researchers from the University of Washington and Smithsonian Institution have reported the first observed case of lionfish preying upon a fish species that had not yet been named. Their results, published May 25 in PLOS ONE, may indicate an uncertain future for other fish found in the largely unexplored deep-ocean coral reefs.


May 18, 2017

Seattle seawall’s novel fish features are a potential model for the world

finished seawall

As tourists and residents visit Seattle’s downtown waterfront, it may not be immediately apparent they are walking on arguably the largest, most ambitious urban seawall project in the world that prioritizes habitat for young fish and the invertebrates they feed on.


April 24, 2017

Conservation not an effective tool for reducing infectious disease in people, study finds

Zebras seen in Nairobi National Park in Kenya.

Conservation projects that protect forests and encourage a diversity of plants and animals can provide many benefits to humans. But improved human health is not among those benefits ― at least when health is measured through the lens of infectious disease. That’s the main finding of a paper published April 24 in Philosophical Transactions of…


March 7, 2017

‘Black swan’ events strike animal populations

black swan in nature

A new analysis by the University of Washington and Simon Fraser University is the first to document that black swan events also occur in animal populations and usually manifest as massive, unexpected die-offs.


February 22, 2017

UW’s Kristin Laidre awarded Pew marine fellowship to study effects of climate change, subsistence hunting on polar bears

Kristin Laidre

A new, two-part project led by the UW’s Kristin Laidre aims to explore the interacting effects of climate change and subsistence hunting on polar bears, while also illuminating the cultural value of the species to indigenous peoples and the role they play in conservation.


February 21, 2017

Winners, losers among fish when landscape undergoes change

fish swimming underwater

A new study by the University of Washington and Simon Fraser University finds that some fish lose out while others benefit as urban and agricultural development encroaches on streams and rivers across the United States.


January 18, 2017

Climate change prompts Alaska fish to change breeding behavior

Three-spine stickleback.

A new University of Washington study finds that one of Alaska’s most abundant freshwater fish species is altering its breeding patterns in response to climate change, which could impact the ecology of northern lakes that already acutely feel the effects of a changing climate.


January 17, 2017

Diversification key to resilient fishing communities

Fishing boats in Juneau, Alaska.

Fishing communities can survive ― and even thrive ― as fish abundance and market prices shift if they can catch a variety of species and nimbly move from one fishery to the next, a new University of Washington study finds.


January 12, 2017

Ocean acidification to hit West Coast Dungeness crab fishery, new assessment shows

Dungeness crab.

The acidification of the ocean expected as seawater absorbs increasing amounts of carbon dioxide from the atmosphere will reverberate through the West Coast’s marine food web, but not necessarily in the ways you might expect, new research shows.


January 5, 2017

Arctic sea ice loss impacts beluga whale migration

A beluga whale pod in the Chukchi Sea.

A new study led by the University of Washington finds the annual migration of some beluga whales in Alaska is altered by sea ice changes in the Arctic, while other belugas do not appear to be affected.


December 19, 2016

Investing in fisheries management improves fish populations

Fishing boats in coastal Peru.

Research published this week in the Proceedings of the National Academy of Sciences suggests that successful fisheries management can be best achieved by implementing and enforcing science-based catch or effort limits.


November 16, 2016

2 UW scientists lead effort to craft ‘blueprint’ for holistic fisheries management

A herring fishing boat.

Two University of Washington professors are leading an effort to help U.S. fisheries consider the larger marine environment, rather than just a single species, when managing a fishery.


November 7, 2016

Mislabeled seafood may be more sustainable, new study finds

Fish labeled red snapper seen on ice in a fish market.

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.


September 27, 2016

NSF award to launch citizen science initiative across Pacific Rim

Marco Hatch works with native students to instrument mudflats of Puget Sound for environmental data collection.

A team of researchers led by the University of Washington believes creating a network of community-based science is possible with new support from the National Science Foundation.


Missing fish catch data? Not necessarily a problem, new study says

kompong-phluk-kompong-953388_1920

A new study by University of Washington scientists finds that in many cases, misreporting caught fish doesn’t always translate to overfishing. The study was published online this month in the journal Fish and Fisheries.


September 8, 2016

How do shark teeth bite? Reciprocating saw, glue provide answers

A tiger shark.

A recent University of Washington study sought to understand why shark teeth are shaped differently and what biological advantages various shapes have by testing their performance under realistic conditions.


August 26, 2016

Interactive map shows where animals will move under climate change

animated map of U.S.

The University of Washington and The Nature Conservancy have created an animated map showing where mammals, birds and amphibians are projected to move in the Western Hemisphere in response to climate change.


August 18, 2016

Twins, especially male identical twins, live longer

Twin boys

Analysis of almost 3,000 pairs of Danish twins shows that they live longer than the general population, especially if they are identical.


August 16, 2016

Big fish — and their pee — are key parts of coral reef ecosystems

The Almaco jack is a large predator fish, pictured here in the Caribbean.

Large, carnivorous fish excrete almost half of the key nutrients, phosphorus and nitrogen, that are essential for the survival of coral reefs.


July 19, 2016

UW professor is digitizing every fish species in the world

fish scan

UW professor Adam Summers is scanning and digitizing all 25,000 species of fish that live on Earth. Each species soon will have a high-resolution, 3-D visual replica online, available to all and downloadable for free.


July 13, 2016

Opinion: Closing parts of the ocean to fishing not enough to protect marine ecosystems

Four line graphs showing rising trneds

In a three-page commentary in the journal Nature, fisheries professor Ray Hilborn argues that establishing marine protected areas is not as effective at protecting marine biodiversity as properly managing recreational and commercial fisheries.


July 6, 2016

Acid attack — can mussels hang on for much longer?

Mussels

Scientists from the University of Washington have found evidence that ocean acidification caused by carbon emissions can prevent mussels attaching themselves to rocks and other substrates, making them easy targets for predators and threatening the mussel farming industry.


May 26, 2016

Ray Hilborn receives international fisheries science prize

photo of ray hilborn

Ray Hilborn, a UW professor of aquatic and fishery sciences, this week will receive the 2016 International Fisheries Science Prize at the World Fisheries Congress in Busan, South Korea.


May 20, 2016

Lingcod meet rockfish: Catching one improves chances for the other

A lingcod fish

In a new study, scientists found that selectively fishing for lingcod in protected areas actually avoided hampering the recovery of other fish, including rockfish species listed as overfished.


April 1, 2016

Global ocean fish populations could increase while providing more food, income

PNAS_global fisheries

Most of the world’s wild fisheries could be at healthy levels in just 10 years, and global fish populations could greatly increase by 2050 with better fishing approaches, according to a new study co-authored by University of Washington researchers.


March 4, 2016

UW video on clingfish takes top prize at Ocean 180 competition

Northern clingfish.

A University of Washington team won first place in a science communication video contest that culminated during the recent Ocean Sciences Meeting.


February 25, 2016

Herring fishery’s strength is in the sum of its parts, study finds

Pacific herring.

Just like a strong financial portfolio contains shares from different companies, the diverse subpopulations of herring from different bays and beaches around Puget Sound collectively keep the total population more stable, a new study finds.


February 12, 2016

Rare beluga data show whales dive to maximize meals

Belugas observed among West Greenland sea ice.

As the Arctic continues to change due to rising temperatures, melting sea ice and human interest in developing oil and shipping routes, it’s important to understand belugas’ baseline behavior, argue the authors of a new paper.


January 20, 2016

UW-designed climate change games honored this week in Washington, D.C.

people playing a board game

Two University of Washington teams claimed top prizes in a national competition to design a game about climate adaptation.


January 6, 2016

UW climate scientists to give free talks at Mt. Baker Ski Area

poster with mountains and speakers' photos

UW scientists will give free talks on climate change for three consecutive Saturdays at Mt. Baker Ski Area.


December 2, 2015

Vessel speed biggest factor in noise affecting killer whales

Digital acoustic recording tags temporarily attached to killer whales measured vessel noise reaching the whales.

The speed of vessels operating near endangered killer whales in Washington is the most influential factor – more so than vessel size – in how much noise from the boats reaches the whales, according to a new study published today in the online journal PLOS ONE.


October 28, 2015

Alaskan trout choose early retirement over risky ocean-going career

dolly varden trout

A new study in Ecology shows that Alaskan Dolly Varden trout, once they reach about 12 inches in length, can retire permanently from going to sea. They rely on digestive organs that can massively expand and contract and a unique relationship with sockeye salmon.


October 21, 2015

Gear, not geoducks, impacts ecosystem if farming increases

Geoduck clams after harvesting.

The equipment used to farm geoducks, including PVC pipes and nets, might have a greater impact on the Puget Sound food web than the addition of the clams themselves. That’s one of the findings of the first major scientific study to examine the broad, long-term ecosystem effects of geoduck aquaculture in Puget Sound.



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