With declining returns of Pacific lamprey to the Columbia River basin, tribes are turning to artificial propagation, supplementation and translocation to boost lamprey numbers and move the fish back into historic spawning grounds.
Latest News
Study Finds Suitable Mainstem Spawning Habitat Upstream Of Grand Coulee Dam To Support Up To 32,000 Adult Summer/Fall Chinook
May 13th, 2021
Researchers have found enough suitable habitat for more than 32,000 spring/fall chinook salmon to spawn in a section of upper Lake Roosevelt to the border with Canada where current is swifter than it is near Grand Coulee Dam – but that’s only if the fish can make it upstream of Grand Coulee and Chief Joseph dams.
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Dry Dry April As Columbia Basin Water Supply Continues To Drop, Remaining Snowpack A Mixed Bag
May 13th, 2021
Monthly estimates of available water supply in the Columbia River basin are continuing to drop after a month of record low rainfall in April.
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Endangered Sturgeon: Lake Koocanusa’s Warmer Water Released Into Kootenai River To Trigger Spawning, Egg Hatching
May 13th, 2021
A lower than average May water supply forecast at Montana’s Libby Dam has reduced the amount of flow augmentation available to encourage spawning of endangered Kootenai River white sturgeon downstream in Idaho.
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The Competing Trade-Offs Of Mixed-Stock Fisheries: Can Fisheries Benefit From Such Biodiversity Without Harming Weak Populations?
May 13th, 2021
A new study by researchers from Simon Fraser University and Canada’s Department of Fisheries and Oceans reveals the trade-offs of fish biodiversity--its costs and benefits to mixed-stock fisheries--and points to a potential way to harness the benefits while avoiding costs to fishery performance.
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EPA Relaunches Climate Change Indicators Showing Rising Temperatures, Less Snowpack, Heat Waves, Wildfires, Droughts, Flooding, Glacier Loss
May 13th, 2021
After being put on hold during the four years of the Trump Administration, the Environmental Protection Agency is relaunching its Climate Change Indicators in the United States website for the public.
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With Northwest Boating Season Just Beginning WDFW Already Finds 11 Watercraft Fouled With Invasive Mussels
May 13th, 2021
Only five months into the year, and Washington Department of Fish and Wildlife aquatic invasive watercraft inspection stations staff have already inspected over 5,500 watercraft; 11 of which were fouled with invasive zebra and/or quagga mussels.