California sea lions have begun to feed on salmon at Bonneville Dam and scientists have discovered a model to explain this new behavior since this is a major wildlife challenge since the Marine Mammal Protection Act protects the sea lions while the Endangered Species Act protects the salmon they are eating.
The large declines of salmon stocks were identified in North-Western Europe. For a long time, ecologists blamed water contamination and over-fishing that happened in and after the 19th century for the decrease of salmon in water bodies.
Vast genetic changes can occur in hatchery-raised fish in as little as one generation, according to the latest study from Oregon State University. This poses a significant threat to wild populations that come in contact with their genetically unique relatives.
The recent discover that an endangered population of Killer whales living in the Pacific Northwest preferred eating salmon in summer may lead to improved targeted conservation practices.
Researchers have noted that the removal of some dams has helped songbirds and other wildlife rebound faster than expected.
A widespread parasite known to infect salmon and trout is actually a "micro jellyfish." This may change the way scientists define animals.
To adapt to changing environments, fish have evolved with an enzyme researchers refer to as Cyp27c1, which is closely linked to vitamin A and known to promote good vision in low light.
Dolly Varden, an Alaskan trout species, are able to retire from migrating each year after growing big enough to store and utilize fat reserves. This is the only known species that partakes in such a retirement.
Toxic stormwater has been linked to the death of coho salmon along the U.S. West Coast. Now, using a simply filtration system, researchers may be able to save them from extinction.
Researchers excavating ancient salmon chum bones from the Upward Sun River site in Alaska have found that Ice Age humans had a broader diet than previously surmised and used specialized tools to fish.
Researchers collected small chum salmon from Elliot Bay and restored beaches along the coast of Seattle in order to better understand how urbanized shorelines affect salmon eating habits. It turns out restored beaches provide the young fish with a buffet of small crustaceans that help them survive and grow into adulthood.
Nutritionists and other health experts will all tell you the same thing: eating fish can be very good for your health. However, did you know that even a salmon plague can treat cancer? It may sound ridiculous, but this is what some researchers are suggesting after the discovery of toxins in fish bacteria that can stop tumor growth in its tracks.
When a prehistoric fish fails by the dozens in a huge Western river like the Columbia, what is causing the problem?
Particularly in the Russian Far East, near Japan, the country's ban on large-scale driftnets might really help some of the 400,000 seabirds caught in gillnets worldwide each year.
It's no secret that climate change has been affecting our oceans, with things like warming surface temperatures and rising acidity affecting various species across the world. Now a new report has revealed that the West Coast of North America may be feeling changes so intense that it is altering the overall productivity of local waters, leading to a reduction in marine species spanning from seabirds to salmon.