A recent study examining salmon hatchery operations practices in the Salish Sea (Puget Sound) in Washington State for the past 65 years finds that current practices are releasing juvenile salmon at a larger size than in the past – a size preferred by predators – and with decreasing diversity. It calls for a consideration of modifying hatchery programs to allow for more diversity by reducing this size homogenization.
There's a long-standing belief in the freshwater fishing community that once anglers find it too hard to land a particular fish for their dinner plate, they either move on to fishing for different species or fish in new waters, giving depleted populations time to rebound.
The survival of juvenile Snake River salmon and steelhead and their eventual return to spawning streams as adults depends more on the juveniles' size than the way they pass through hydroelectric dams on their migration to the ocean, new research shows.
Tiny threads of plastics are showing up in Pacific oysters and razor clams along the Oregon coast -- and the yoga pants, fleece jackets, and sweat-wicking clothing that Pacific Northwesterners love to wear are a source of that pollution, according to a new Portland State University study.
A panel of scientists completed a review of the Upper Columbia United Tribes’ phase 1 report that describes the feasibility of reintroducing salmon and steelhead into the reaches of the Columbia River upstream of Chief Joseph and Grand Coulee dams.
The addition of steelhead carcasses to tributaries of the Grande Ronde River in northeastern Oregon resulted in short-term increases in the growth rates, body condition and size of juvenile chinook salmon and steelhead, factors that may contribute to their survival, according to a recent study.
Natural abundance potential of spring/summer chinook salmon in the Middle Fork Salmon River of Idaho recalculated by three biologists is far higher than most current management goals for the fish by NOAA Fisheries, the Nez Perce Tribe and the Idaho Department of Fish and Game, according to a recent study.
Anglers fishing the upper Salmon River this fall and winter may notice large antennas in various locations near the riverbank.
New genetic research has identified fin whales in the northern Pacific Ocean as a separate subspecies, reflecting a revolution in marine mammal taxonomy as scientists unravel the genetics of enormous animals otherwise too large to fit into laboratories.