Regions of Arctic water are becoming ice-free in late summer and early fall. A new study is the first to consider potential impacts on the marine mammals that use this region and identify which populations will be the most vulnerable to ships.
Tag: School of Aquatic and Fishery Sciences
A new analysis suggests the value of structured research programs for undergraduates extends to society as a whole by encouraging participants to seek advanced degrees in scientific and technological fields.
Anchovies, herring, sardines and other forage fish play an essential role in the food web as prey for seabirds, marine mammals and larger fish like salmon. When ground into fishmeal and oil, they are also a key food source for farmed seafood and land-based livestock such as pigs and poultry. As seafood consumption outpaces the growth of other food sectors and continues to grow worldwide, farmed seafood — also called aquaculture — has increased rapidly to meet consumer demand. That…
A new study led by the University of Washington considers which food type is more environmentally costly to produce: livestock, farmed seafood or wild-caught fish.
A new University of Washington-led paper pinpoints starvation as the cause of death for hundreds of thousands of Cassin’s auklet seabirds in late 2014 to early 2015.
Twenty-five polar bear hunters in East Greenland were interviewed before the first formal assessment of this subpopulation, one of 19 subpopulations of polar bears in a changing Arctic.
A pair of anglerfish, a species never before seen alive by humans, was recorded recently on camera by researchers aboard the LULA1000, a submersible operated by the marine science-focused Rebikoff-Niggeler Foundation.
The largest and oldest Chinook salmon — fish also known as “kings” and prized for their exceptional size — have mostly disappeared along the West Coast, according to a new study led by the University of Washington.
Reductions in sea ice in the Arctic have a clear impact on animals such as polar bears that rely on frozen surfaces for feeding, mating and migrating. But sea ice loss is changing Arctic habitat and affecting other species in more indirect ways, new research finds. Beluga whales that spend summers feeding in the Arctic are diving deeper and longer to find food than in earlier years, when sea ice covered more of the ocean for longer periods, according to…
Five 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. 15, include Maya Cakmak, assistant professor of computer science and engineering; Jiun-Haw Chu, assistant professor of clean energy and physics; Arka Majumdar, assistant professor of electrical engineering and physics; Jessica Werk, assistant professor of astronomy; and Chelsea Wood, assistant professor of aquatic and fishery sciences.
New findings could help scientists understand a little more about the elusive narwhal and how these marine mammals might fare in a changing climate.
A team of ecologists and economists is the first to test whether real-life ecological interactions produce economic benefits for the fishing industry. The results were published online Jan. 29 in the Proceedings of the National Academy of Sciences.
University of Washington researchers have published the first major assessment of small hydropower dams around the world — including their potential for growth — and highlight the incredibly variability in how dams of varying sizes are categorized, regulated and studied.
More than three centuries ago, a French monk made thousands of drawings of plants and animals, traveling under the authority of King Louis XIV to the French Antilles to collect and document the natural history of the islands. These drawings were often the first ever recorded for each species and were completed in remarkable detail. The illustrations were nearly lost forever during the tumultuous French Revolution, and the volumes compiled by Father Charles Plumier were discovered by chance, found serving…
A small group of fishes — possibly the world’s cleverest carnivorous grazers — feeds on the scales of other fish in the tropics. A team led by biologists at the University of Washington’s Friday Harbor Laboratories is trying to understand these scale-feeding fish and how this odd diet influences their body evolution and behavior.
Recognizing that many large dams are here to stay, a University of Washington team is investigating an emerging solution to help achieve freshwater conservation goals by re-envisioning the ways in which water is released by dams.
A new NSF-funded project will use findings in the Mekong River basin as an example of how three critical issues — feeding people, generating energy and maintaining functioning ecosystems — can be addressed thoughtfully and progressively in the developing world.
The University of Washington, Arizona State University and other collaborators have proposed a method in the Dec. 8 issue of Science that allows hydroelectric dam operators to generate power in ways that protect — and possibly improve — food supplies and businesses throughout the Mekong river basin in Southeast Asia.
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.
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.
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.
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 of Washington researchers are tackling this question in the first analysis of how vulnerable the world’s freshwater and marine fishes are to climate change. Their…
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.
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.
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.
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.
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.
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 the Royal Society B, which analyzed the relationship between infectious diseases and their environmental, demographic and economic drivers in dozens of countries over 20 years….
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.