Traditionally it was thought that warm coastal water temperatures in Alaska were considered beneficial for salmon productivity, while the opposite was true off the coasts of British Columbia and Washington State where warmer temperatures were not as good for salmon.
The Great Alaskan Earthquake of 1964 and the tsunamis it spawned may have washed a tropical fungus ashore, leading to a subsequent outbreak of often-fatal infections among people in coastal regions of the Pacific Northwest, according to a paper co-authored by researchers at the Johns Hopkins Bloomberg School of Public Health and the nonprofit Translational Genomics Research Institute.
Three conservation organizations this week petitioned NOAA Fisheries to list spring chinook salmon along much of the Oregon Coast south of the Columbia River as threatened or endangered under the Endangered Species Act.
The annual budget for a panel of scientists that review fish and wildlife projects and regional research issues was cut by almost $200,000 by the Northwest Power and Conservation Council at its meeting in Corvallis, Sept. 18, and the cost savings could be used for Northern pike monitoring and suppression, according to Council staff.
NOAA Fisheries is proposing to expand critical habitat for Southern Resident killer whales along the West Coast, based on information about their coastal range and habitat use.
Technological advances are allowing commercial fishing fleets to double their fishing power every 35 years and put even more pressure on dwindling fish stocks, new research has found.
The hoary bat, the species of bat most frequently found dead at wind power facilities, is declining at a rate that threatens its long-term future in the Pacific Northwest, according to a novel and comprehensive research collaboration based at Oregon State University – Cascades (Bend).
To a certain extent, coho salmon smolts can withstand temperatures somewhat higher than previously thought to be optimal for survival and growth, and, in fact, will even grow faster and larger in higher temperatures, although survival may drop. However, the important variable in their growth over summer periods is the availability and abundance of invertebrate prey for the young salmon to eat, according to a recent study.
Three new viruses—including one from a group of viruses never before shown to infect fish—have been discovered in endangered chinook and sockeye salmon populations.