Tag Archives: Ocean conditions

Researchers: Columbia spring chinook forecast might be too high

Fisheries managers have been predicting a slightly below-average run of spring chinook salmon on the Columbia River this year, but a newly published suggests that it may be worse. According to researchers from Oregon State University and the National Oceanic and Atmospheric Administration, ocean conditions were historically bad in the spring of 2015, when migrating yearling fish that will comprise the bulk of this spring’s adult chinook salmon run first went out to sea. In fact, Pacific Decadal Oscillation values — which reflect warm and cold sea surface temperatures — suggest it was one of the warmest nearshore oceans encountered by migrating chinook salmon dating back to at least 1900. The lack of food for the salmon in 2015 may have resulted in significant mortality that will show in this year’s run of Columbia River springers. One way or another, it will provide new information on fish survival and whether juvenile salmon prey data can help resource managers predict future returns. continue reading the story here 10:11

Ocean conditions appear improving for salmon

Warm water temperatures in the north Pacific Ocean are starting to cool after three years, but their effect on Northwest salmon will persist for another year or two. “Strange times, but things are looking up, that’s the message,’’ said Marisa Litz of the Washington Department of Fish and Wildlife. Litz made her comments on Tuesday at the agency’s annual unveiling of Columbia River, coastal and Puget Sound salmon forecasts. She recently completed her doctorate from Oregon State University in Fisheries Science, focusing on how variable ocean conditions affect growth and survival of young salmon in the Northwest. Tuesday’s meeting began a six-week process that concludes with the Pacific Fishery Management Council adopting ocean salmon fishing seasons in mid-April. continue reading the story here 11:31