Why fish look down when they swim
Just as you might look down at the sidewalk as you walk, fish look downward when they swim, a new study by a Northwestern University-led international collaboration has confirmed......»»
Genetic study finds early summer fishing can have an evolutionary impact, resulting in smaller salmon
Atlantic salmon are caught by fisheries when the fish are migrating to spawn. A new study led by the University of Helsinki explored how salmon caught at different times during their spawning migration differ from each other genetically. The study on.....»»
Scientists find ancient, endangered lamprey fish in Queensland, 1400 km north of its previous known range
The Australian brook lamprey (Mordacia praecox) is part of a group of primitive jawless fish. It's up to 15 cm long, with rows of sharp teeth. Surprisingly, it doesn't use these teeth to suck blood like most lamprey species—it's non-parasitic......»»
Researchers develop bioinspired Bouligand structure for enhanced mechanical properties
Bouligand structures, found in natural materials like fish scales, lobster peritoneum and bones, are known for providing exceptional mechanical properties to biomaterials. While progress has been made in creating bioinspired materials, most research.....»»
Fish residues can compensate for raw materials shortages and improve our health in the bargain
More than a million tons of fish residues can rescue the food and cosmetic industries from raw materials shortages—and create new jobs. The key factors here are oils rich in omega-3, collagen and gelatin......»»
DDT pollutants found in deep sea fish off LA coast raise questions about the pesticide"s continuing threat to wildlife
In the 1940s and 1950s, the ocean off the coast of Los Angeles was a dumping ground for the nation's largest manufacturer of the pesticide DDT—a chemical now known to harm humans and wildlife. Due to the stubborn chemistry of DDT and its toxic brea.....»»
NOAA reports continued drop in overfishing
In a report released May 2, NOAA Fisheries announced that 2023 saw a record low for the number of fish stocks subject to overfishing. The annual "Status of the Stocks" report is an assessment of the 506 stocks and stock complexes managed by NOAA Fish.....»»
Scientists advance research of harmful PFAS chemicals and their impacts
A bemused fishmonger at a seafood market in Portsmouth, N.H., weighed and packaged a dozen filets of fish and three lobster tails for his unusually exacting customers, Dartmouth researchers Celia Chen, Guarini, a research professor of biological scie.....»»
Why do male chicks play more than females? Study finds answers in distant ancestor
Play is widespread, but far from ubiquitous, across the animal kingdom. Especially common in mammals, play is also known to occur in taxa as diverse as birds, fish, octopuses, and even insects. But what is its function, given that natural selection n.....»»
Marine sharks and rays "use" urea to delay reproduction, finds study
Urea—the main component of human urine—plays an important role in the timing of maturation of sharks, rays and other cartilaginous fish......»»
Mass fish die-off in Vietnam as heat wave roasts Southeast Asia
Hundreds of thousands of fish have died in a reservoir in southern Vietnam's Dong Nai province, with locals and media reports suggesting a brutal heat wave and the lake's management are to blame......»»
Umami-rich scrap fish and invasive species can liven up vegetables, says gastrophysicist
Greening the way we eat needn't mean going vegetarian. A healthy, more realistic solution is to adopt a flexitarian diet where seafoods add umami to "boring" vegetables. University of Copenhagen gastrophysicist Ole G. Mouritsen puts mathematical equa.....»»
Feds greenlight return of grizzly bears to Washington"s North Cascades
The National Parks Service and U.S. Fish & Wildlife Service filed a decision April 25 outlining a plan to capture three to seven grizzlies from other ecosystems in the Rocky Mountains or interior British Columbia and release them in the North Cascade.....»»
Steelhead trout, once thriving in Southern California, are declared endangered
Southern California's rivers and creeks once teemed with large, silvery fish that arrived from the ocean and swam upstream to spawn. But today, these fish are seldom seen......»»
Reintroduced gray wolf found dead in Larimer County, Colorado
One of 10 gray wolves reintroduced to Colorado in December was found dead in Larimer County, the U.S. Fish and Wildlife Service confirmed......»»
Study finds climate change is helping tropical fish invade Australian ocean water
A University of Adelaide study of shallow-water fish communities on rocky reefs in south-eastern Australia has found climate change is helping tropical fish species invade temperate Australian waters. The work is published in the Journal of Animal Ec.....»»
Laser-treated cork absorbs oil for carbon-neutral ocean cleanup
Oil spills are deadly disasters for ocean ecosystems. They can have lasting impacts on fish and marine mammals for decades and wreak havoc on coastal forests, coral reefs, and the surrounding land. Chemical dispersants are often used to break down oi.....»»
Mojave desert tortoise officially joins California"s endangered list
The California Fish and Game Commission has formally recognized the Mojave desert tortoise as endangered......»»
Why zebrafish can regenerate damaged heart tissue, while other fish species cannot
A heart attack will leave a permanent scar on a human heart, yet other animals, including some fish and amphibians, can clear cardiac scar tissue and regrow damaged muscle as adults......»»
Respiratory stress response that stunts temperate fish also affects coral reef fish
Coral reef fish, like the fish in other marine and freshwater ecosystems, are likely to reach smaller maximum sizes and start reproducing earlier with smaller and fewer eggs as climate change continues to warm up the ocean......»»
Disease-resistant strains of carp provide advancements in aquaculture, enhance gefilte fish quality
A new study led by Prof. Lior David from the Faculty of Agriculture at the Hebrew University investigated the infectivity of disease-resistant and susceptible fish by examining their roles as shedders (infecting) and cohabitants (infected) in various.....»»