Study: Researchers use eel-like protein to control brain

NewsWise — Researchers looking to help people suffering from addiction, depression, and pain are studying how certain brain neurons operate to see if they can be controlled. In a paper published May 11 in Neuron, researchers at the University of Washington School of Medicine and Washington University in St. Louis, along with several other universities, successfully used a protein called Read More…

Sharks can navigate via Earth’s magnetic field, study confirms for…

National Geographic — When it comes to remarkable feats of migration, you’ll often hear about birds or salmon. But many sharks also undertake impressive journeys across the oceans, from great white sharks—some of which travel from South Africa to Australia and back—to lemon sharks that can find their way home to a tiny island in the Bahamas. For decades, scientists have wondered how Read More…

Research confirms trawl ban substantially increases the abundance of…

PhysOrg — Biodiversity is of crucial importance to the marine ecosystem. The prohibition of trawling activities in the Hong Kong marine environment for two and a half years has significantly improved biodiversity, an inter-university study led by City University of Hong Kong (CityU) has found. Research results showed that the trawl ban could restore and conserve biodiversity in tropical Read More…

Researchers: Gulf Of California Sardine Fishery In Trouble

KPBS — The gulf’s sardine fishery has collapsed four times in the past 30 years, and researchers in California worry about the future of the sardine industry. Alfredo Giron of Stanford University and Octavio Aburto of the Scripps Institution of Oceanography looked at how sardines are faring. The study shows that there are natural boom-bust cycles where the small fish are plentiful and then Read More…

New Findings Suggest that the Removal of Sea Urchins Result in…

USC Dornsife — USC Sea Grant-funded research recently concluded a decade-long study on determining the effects of reducing sea urchin density in efforts to restore kelp forests in Southern California. Their results were recently published in the April 2021 issue of the Marine Ecology Progress Series. Many years, collaborations, and publications later, along with an unexpected curveball Read More…

Historical fish gut study shows they’ve been eating plastic since…

New Atlas — Modern scientific techniques are rapidly improving our understanding of how plastic pollution can impact marine organisms, and a new study has demonstrated how they can also be used to understand the plight of creatures past. Scientists have used museum collections to step back in time and study the guts of freshwater fish over the past century, which revealed not just that they've Read More…

Research project examines male pregnancy and microbes in fish

University of Oregon — A research project from the lab of University of Oregon evolutionary biologist Bill Cresko is setting out to explore the effects of a remarkable evolutionary innovation: male pregnancy in seahorses, pipefish and seadragons. “This is an amazingly diverse family of fish, and some species are the only vertebrates in which males become truly pregnant,” Cresko said Read More…

Fish Factor: Study would measure threat to salmon from road runoff

The Cordova Times — Are toxins from road runoff a threat to salmon in Anchorage’s most popular fishing streams? A GoFundMe campaign has been launched so Alaskans can chip in to find out. The push stems from an organic compound in tires, called quinone, that was newly identified by researchers at the University of Washington, said Birgit Hagedorn, a geochemist and longtime board member of Read More…

Research on Lake Victoria cichlids uncovers the processes of rapid…

EurekAlert! — Biologists use the term adaptive radiation to describe a phenomenon in which new species rapidly evolve from an ancestral species, often in response to changes in the local environment that lead to new biological niches becoming available. To understand this process, biologists often turn to the cichlids of Lake Victoria, in which over 500 species of the fish have evolved over Read More…

Bone collagen of fish shows individual history of migration and…

EurekAlert! — Collagen is a protein found widely in almost all cells of animals, and scientifically can be used to learn much about an animal's life history including human being in the present or in the past. Scientists at the Research Institute for Humanity and Nature (RIHN) and Japan Fisheries Research and Education Agency (FRA), Japan, prove this point for Japanese flounder by measuring Read More…