Chinook salmon smolts that rear in upper Willamette River reservoirs grow much faster and are larger than their counterparts that rear in streams, according to a recent study.
A large-scale and long-term monitoring of habitat restoration projects in the state of Washington found that the size and depth of pools created by the restoration projects failed to fully remain in place after year 10 at 23 monitored projects.
The Association of Fish and Wildlife Agencies recently honored Idaho Fish and Game with the Ernest Thompson Seton Award for the agency’s research on the effects of air exposure on caught-and-released fish.
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.