Spawn timing for wild chinook salmon in the Skagit River system in Washington is slowly occurring later in the year as the river warms due to climate change, a finding that fits with previous research. However, the trend for hatchery-origin stray chinook salmon in the same river is towards earlier spawning, according to a recent study.
Endangered steelhead in California might use its internal clock to decide when to migrate, according to a study by the University of Cincinnati.
Pacific lamprey is a relatively understudied species compared to other anadromous fish, such as salmon and steelhead. Basic biological information has been lacking and there is still uncertainty regarding its life history diversity.
Wastewater containing coronaviruses may be a serious threat, according to a new, global study led by researchers from the Zuckerberg Institute for Water Research at Ben-Gurion University of the Negev (BGU).
The size of salmon returning to rivers in Alaska has declined dramatically over the past 60 years because they are spending fewer years at sea, according to a new study led by researchers at the University of California, Santa Cruz, and the University of Alaska Fairbanks.
People hoping to get a handle on future droughts in the American West are in for a disappointment, as new University of Southern California-led research spanning centuries shows El Niño cycles are an unreliable predictor.
Marine heatwaves across the world's oceans can displace habitat for sea turtles, whales, and other marine life by 10s to thousands of kilometers. They dramatically shift these animals' preferred temperatures in a fraction of the time that climate change is expected to do, new research shows.
To get a better idea of how much predation plays in steelhead populations, a couple of Nez Perce Tribe Fisheries biologists began looking for clues at a heron rookery on northeast Oregon’s Wallowa River.
To aid a research project, Idaho steelhead anglers are once again being asked to watch for tagged steelhead they might catch during the 2020-21 steelhead fishing seasons, and report tagged fish if they catch one.