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NW Fishletter
NWF.357/May 2, 2016
Life-Cycle Modeling Shows Hydro System Op Changes Have Immediate Benefits
Changes to operation of the Federal Columbia River Power System, particularly those that accommodate spill, have the most immediate benefit to salmon and steelhead recovery, according to a presentation at the Fish Passage Center's annual briefing in Portland April 20. ...more
Predation Control Starts Again In Lower Columbia As Salmon Migrations Begin
The U.S. Army Corps of Engineers and fish managers have two predator groups, cormorants and sea lions, in their sights this spring as fish migration season begins on the Columbia River. ...more
New BiOp Requires Changes In Flood Insurance To Protect Species
The National Flood Insurance Program in Oregon jeopardizes the continued existence of not only salmon and steelhead species, but also eulachon and Southern Resident killer whales and their protected habitats, the National Marine Fisheries Service said in a new biological opinion released April 14. ...more
2015 Sockeye Disaster Recapped: Cautionary Tale For The Future
Last year's above-normal air temperatures, together with early and below-normal runoff, created low-flow and hot-water conditions that killed some 380,000 Columbia River Basin sockeye, according to summaries by biologists and river-operations managers at a recent Northwest Power and Conservation Council meeting. ...more
Coastal Salmon Fishing Seasons Set, Except In Puget Sound
Offshore salmon fisheries regulations announced April 14 left off Puget Sound, because for the first time in some 30 years, the State of Washington and were unable to reach an agreement on salmon-fishing seasons while working as co-managers. ...more
With Some Exceptions, Regional Snowpack At Or Near Normal
While a few areas are below normal, overall regional snowpack continues to be much better than last year at this time, according to an April prediction by the Northwest River Forecast Center. ...more
Wild Fish Conservancy Sues Over Columbia Basin Hatcheries
As promised, the Wild Fish Conservancy filed a legal challenge against the National Marine Fisheries Service and the U.S. Department of Commerce for funding hatchery programs in the Columbia River Basin without complying with Section 7 of the Endangered Species Act. The March 31 filing came after a 60-day notice of intent to sue in January. ...more
Study of Habitat Above Grand Coulee Approved By Council
A study of fish habitat above Chief Joseph and Grand Coulee dams will officially begin in June, the Northwest Power and Conservation Council said after months of deliberation. ...more
Dworshak Unit 3 Out For Repairs: Changes In Discharge Call For Fish Test
Dworshak Dam's Unit 3 turbine-generator will be out of service for extensive repairs from Sept. 1, 2016, until May 1, 2017. The 250-MW unit is the largest of three turbines and provides spring-flow augmentation to improve river conditions for migrating fish. With only two smaller units in operation next spring, spilling is likely to cause higher concentrations of total dissolved gas, which can be harmful to fish. ...more
Northern Pike Suppression Plan Gets Green Light From Science Panel
A plan to remove the invasive northern pike from Lake Roosevelt, the reservoir behind Grand Coulee Dam, recently passed scientific review and moved a step closer to possible implementation. ...more

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