School of Aquatic and Fishery Sciences
April 19, 2023
Q&A: Two ways UW researchers are studying marine microplastics
Two University of Washington researchers are using very different methods to investigate the issue of marine microplastics. For Earth Day, UW News asked them to discuss their research.
March 22, 2023
Faculty/staff honors: Legal education innovation award, stellar astronomical writing and more
Recent recognition of the University of Washington includes the Bloomberg Law 2022 Law School Innovation Program “Top Legal Education Program” for the UW Tech Policy Lab, 2023 Seattle Aquarium Conservation Research Award for Vera Trainer and 2023 Chambliss Astronomical Writing Award for Emily Levesque.
November 2, 2022
Study reveals how ancient fish colonized the deep sea
A new University of Washington-led study reports that throughout Earth’s ancient history, there were several periods of time when many fish actually favored the cold, dark, barren waters of the deep sea instead of shallow ocean waters that are warm and full of resources.
September 26, 2022
Heat-related mortality risk is widespread across Washington state, study shows
Heat-related deaths occur across Washington state, even in regions with typically milder climates. This is the most extensive study yet of heat-related mortality in Washington state, and the first to look beyond the major population to and include rural areas. Researchers used statistical methods to uncover “hidden” deaths that may have listed something else, like illness or a chronic disease, as the primary cause.
August 23, 2022
Beach trash accumulates in predictable patterns on Washington and Oregon shores
Volunteers spent thousands of hours recording trash on beaches in Washington and Oregon to show that certain beaches, and certain areas of a single beach, are “sticky zones” that accumulate litter. Finding patterns for where litter lands could help to better prevent and remove trash in the marine environment.
June 29, 2022
‘Safety in numbers’ tactic keeps Pacific salmon safe from predators
A new University of Washington study that leverages historical data has found unique support for a “safety in numbers” hypothesis by showing that Pacific salmon in larger groups have lower risk of being eaten by predators. But for some salmon species, schooling comes at the cost of competition for food, and those fish may trade safety for a meal.
June 21, 2022
New study: 2021 heat wave created ‘perfect storm’ for shellfish die-off
A team led by the UW has produced the first comprehensive report of the impacts of the 2021 heat wave on shellfish.
June 16, 2022
Newly documented population of polar bears in Southeast Greenland sheds light on the species’ future in a warming Arctic
A new population of polar bears documented on the southeast coast of Greenland use glacier ice to survive despite limited access to sea ice. This small, genetically distinct group of polar bears could be important to the future of the species in a warming world.
May 6, 2022
Model finds COVID-19 deaths among elderly may be due to genetic limit on cell division
Your immune system’s ability to combat COVID-19, like any infection, largely depends on its ability to replicate the immune cells effective at destroying the SARS-CoV-2 virus that causes the disease. These cloned immune cells cannot be infinitely created, and a key hypothesis of a new University of Washington study is that the body’s ability to…
April 13, 2022
Two UW faculty named fellows of Ecological Society of America
Two University of Washington professors have been honored by the Ecological Society of America for their knowledge and contributions to the field of ecology.
February 15, 2022
eDNA a useful tool for early detection of invasive green crab
As the green crab invasion in the state worsens, a new analysis method developed by University of Washington and Washington Sea Grant scientists could help contain future invasions and prevent new outbreaks using water testing and genetic analysis. The results show that the DNA-based technique works as well in detecting the presence of green crabs as setting traps to catch the live animals, which is a more laborious process. Results suggest these two methods could complement each other as approaches to learn where the species’ range is expanding.
February 9, 2022
New Center for Environmental Forensic Science aims to disrupt and dismantle international illegal wildlife trade
Across the globe, endangered species are at risk for illegal poaching. African elephants are sought out for their ivory, rhinoceros for their singular horns, and armadillo-like pangolins for their protective, brittle scales. Add to that list valuable and environmentally sensitive trees illegally harvested throughout the world where entire ecosystems are being deforested and illegal, unreported and unregulated fishing that is devastating oceans. These illicit markets, estimated at $1 trillion annually, cause enormous environmental impacts and have the potential to unleash new, deadly pathogens.
January 17, 2022
Shifting ocean closures best way to protect animals from accidental catch
Many nations are calling for protection of 30% of the world’s oceans by 2030 from some or all types of exploitation, including fishing. Building off this proposal, a new analysis led by the University of Washington looks at how effective fishing closures are at reducing accidental catch. Researchers found that permanent marine protected areas are a relatively inefficient way to protect marine biodiversity that is accidentally caught in fisheries. Dynamic ocean management — changing the pattern of closures as accidental catch hotspots shift — is much more effective.
July 1, 2021
Last ice-covered parts of summertime Arctic Ocean vulnerable to climate change
The region north of Greenland and the Canadian Arctic has been termed the Last Ice Area, where sea ice will remain the longest in summertime, providing a refuge for ice-dependent Arctic species. But conditions last summer show that parts of this region are already experiencing less summer ice due to climate change.
March 18, 2021
‘By-the-wind sailor’ jellies wash ashore in massive numbers after warmer winters
Thanks to 20 years of observations from thousands of citizen scientists, University of Washington researchers have discovered distinct patterns in the mass strandings of by-the-wind sailor jellies. Specifically, large strandings happened simultaneously from the northwest tip of Washington south to the Mendocino coast in California, and in years when winters were warmer than usual.
February 23, 2021
Logging change in Puget Sound: Researchers use UW vessel logbooks to reconstruct historical groundfish populations
To understand how Puget Sound has changed, we first must understand how it used to be. But unlike most major estuaries in the U.S., long-term monitoring of Puget Sound fish populations did not exist until 1990. Now researchers have discovered an unconventional method to help fill in gaps in the data: old vessel logbooks.
January 27, 2021
In Brazil, many smaller dams disrupt fish more than large hydropower projects
A new University of Washington paper quantifies the tradeoffs between hydroelectric generation capacity and the impacts on river connectivity for thousands of current and projected future dams across Brazil. The findings confirm that small hydropower plants are far more responsible for river fragmentation than their larger counterparts due to their prevalence and distribution.
January 11, 2021
More management measures lead to healthier fish populations
Fish populations tend to do better in places where rigorous fisheries management practices are used, and the more measures employed, the better for fish populations and food production, according to a new paper published Jan. 11 in Nature Sustainability.
December 18, 2020
Coral recovery during a prolonged heatwave offers new hope
The pressing concerns of climate change have placed the long-term health of the world’s coral reefs in jeopardy. However, new research inspires hope as some corals managed to survive a recent and globally unprecedented heatwave.
December 7, 2020
Military flights biggest cause of noise pollution on Olympic Peninsula
A new University of Washington study provides the first look at how much noise pollution is impacting the Olympic Peninsula. The paper found that aircraft were audible across a large swath of the peninsula at least 20% of weekday hours, or for about one hour during a six-hour period. About 88% of all audible aircraft in the pre-pandemic study were military planes.
December 2, 2020
Scientists organize to tackle crisis of coral bleaching
At the current rate of global warming, mass coral bleaching is expected to become more frequent and severe worldwide. An international consortium of scientists, including a coral researcher from the University of Washington, has created the first-ever common framework for increasing comparability of research findings on coral bleaching.
November 23, 2020
US seafood industry flounders due to COVID-19
The global pandemic is hurting the seafood industry, and American fishmongers may flounder without more government aid, according to the largest study of COVID-19’s impacts on U.S. fisheries.
October 19, 2020
Early-arriving endangered Chinook salmon take the brunt of sea lion predation on the Columbia
A new University of Washington and NOAA Fisheries study found that sea lions have the largest negative effect on early-arriving endangered Chinook salmon in the lower Columbia River. The results of this study will publish Oct. 18 in the Journal of Applied Ecology.
September 29, 2020
Aquatic hitchhikers: Using mobile technology to predict invasive species transmission
A new University of Washington study uses passive data from a fishing technology company to model the movement of anglers and predict where aquatic invasive species may be spreading.
September 23, 2020
Some polar bears in far north are getting short-term benefit from thinning ice
The small subpopulation of polar bears in Kane Basin were doing better, on average, in recent years than in the 1990s. The bears are experiencing short-term benefits from thinning and shrinking multiyear sea ice that allows more sunlight to reach the ocean surface, which makes the system more ecologically productive.
August 3, 2020
New studies show how to save parasites and why it’s important
An international group of scientists has laid out an ambitious global conservation plan for parasites. A related paper led by the University of Washington found that responses of parasites to environmental change are likely to be complex, and that a changing world probably will see both outbreaks of some parasites and a total loss of other parasite species.
July 30, 2020
Deep-sea anglerfishes have evolved a new type of immune system
Deep-sea anglerfishes employ an incredible reproductive strategy. Tiny dwarfed males become permanently attached to relatively gigantic females, fuse their tissues and then establish a common blood circulation. Now scientists have figured out why female anglerfishes so readily accept their male mates. Their findings are published July 30 in Science.
July 16, 2020
Faculty/staff honors: ‘Architect’ magazine award, national society president-elect, library research honor — and runner-up for a national award for young scientists
Recent honors to University of Washington faculty and staff have come from Architect magazine, the Center for Research Libraries, member states of the Asia-Pacific Economic Cooperation (APEC) and the American Society of Human Genetics.
May 21, 2020
NOAA selects UW to host new, regional institute for climate, ocean and ecosystem research
A 5-year, up to $300 million grant from NOAA establishes the new Cooperative Institute for Climate, Ocean and Ecosystem Studies, a UW-based institute with partners at the University of Alaska Fairbanks and Oregon State University. The institute will lead collaborative, multidisciplinary research and education activities around oceans and climate.
May 11, 2020
EarthLab announces Innovation Grant recipients for 2020
Research projects funded for 2020 by EarthLab’s Innovation Grants Program will study how vegetation might reduce pollution, help an Alaskan village achieve safety and resilience amid climate change, organize a California river’s restoration with tribal involvement, compare practices in self-managed indigenous immigrant communities and more.
May 1, 2020
Pacific oysters in the Salish Sea may not contain as many microplastics as previously thought
University of Washington researchers have discovered that the abundance of tiny microplastic contaminants in Pacific oysters from the Salish Sea is much lower than previously thought.
March 30, 2020
Faculty/staff honors: Outstanding educator in landscape architecture, Royal Society of Edinburgh corresponding fellowship — and the Green Rat Clingfish takes a bow
Recent honors to University of Washington faculty and staff have come from the Council of Educators in Landscape Architecture, the Royal Society of Edinburgh and the World Register of Marine Species.
March 23, 2020
Anatomy of a frogfish: New book explores world of fishes with arms and legs
Any old fish can swim. But what fish can walk, scoot, clamber over rocks, change color and even fight to the death? That would be the frogfish. A talk with Ted Pietsch, UW professor of emeritus of aquatic and fishery sciences, about his latest book, “Frogfishes: Biodiversity, Zoogeography, and Behavioral Ecology”
March 19, 2020
‘Sushi parasites’ have increased 283-fold in past 40 years
A new study led by the University of Washington finds dramatic increases in the abundance of a worm that can be transmitted to humans who eat raw or undercooked seafood. Its 283-fold increase in abundance since the 1970s could have implications for the health of humans and marine mammals, which both can inadvertently eat the worm.
March 12, 2020
Ocean acidification impacts oysters’ memory of environmental stress
Researchers from the University of Washington School of Aquatic and Fishery Sciences have discovered that ocean acidification impacts the ability of some oysters to pass down “memories” of environmental trauma to their offspring.
March 2, 2020
New honors for scientists studying ‘ecosystem sentinels’
P. Dee Boersma, a UW professor of biology and director of the Center for Ecosystem Sentinels, is a finalist for the 2020 Indianapolis Prize for conservation, to be awarded later this year by the Indianapolis Zoological Society. Sue Moore, a scientist with the center and a UW affiliate professor of biology and of aquatic and fishery sciences, has won the 2020 IASC Medal, also known as the Arctic Medal, from the International Arctic Science Committee.
February 12, 2020
Four UW scientists awarded Sloan Fellowships for early-career research
Four faculty members at the University of Washington have been awarded early-career fellowships from the Alfred P. Sloan Foundation. The new Sloan Fellows, announced Feb. 12, are Kyle Armour and Jacqueline Padilla-Gamiño, both assistant professors in the College of the Environment; and Hanna Hajishirzi and Yin Tat Lee, both assistant professors in the College of Engineering.
Polar bears in Baffin Bay skinnier, having fewer cubs due to less sea ice
Satellite tracking of adult females and visual monitoring of polar bears in Baffin Bay show changes from the 1990s to the period from 2009 to 2015. Bears in Baffin Bay are getting thinner and adult females are having fewer cubs than when sea ice was more available.
January 15, 2020
‘The blob,’ food supply squeeze to blame for largest seabird die-off
When nearly one million common murres died at sea and washed ashore from California to Alaska in 2015 and 2016, it was unprecedented. Scientists from the University of Washington, the U.S. Geological Survey and others blame an unexpected squeeze on the ecosystem’s food supply, brought on by a severe and long-lasting marine heat wave known as “the blob.”
January 13, 2020
Fisheries management is actually working, global analysis shows
Nearly half of the fish caught worldwide are from stocks that are scientifically monitored and, on average, are increasing in abundance. Effective management appears to be the main reason these stocks are at sustainable levels or successfully rebuilding, according to a new study led by the University of Washington.
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