Nez Perce Study Shows Snake River Basin Salmon/Steelhead At Risk Of Extinction; Tribe Says Emergency Actions Needed

May 7th, 2021

Natural origin spring/summer chinook salmon adult returns to the Snake River basin are declining at a rate of 19 percent each year and 77 percent of Snake River spring/summer chinook populations will fall below a quasi-extinction risk threshold of 50 fish for each distinct population by 2025 without emergency actions, Nez Perce tribal fisheries biologists warned this week.

Read the Full Article

Login to your account or Become a Member

Three NW Lawmakers Say Rep. Simpson Coordinating With Oregon Governor On Dam Breaching Plan; Simpson Calls Accusations ‘Offensive’

May 7th, 2021

Republican U.S. House members from eastern Washington and eastern Oregon are accusing Idaho Republican Rep. Mike Simpson of “in-depth coordination” with Oregon Gov. Kate Brown “behind the scenes” to “shepard” through Congress his proposal to breach the Lower Snake river dams to increase returns of salmon and steelhead to the Snake River basin.

Read the Full Article

Login to your account or Become a Member

Mortality Event, Warm Weather, Water Conditions Prompt Early Release Of One Million Sockeye Smolts Directly Into Upper Salmon River

May 6th, 2021

Idaho Fish and Game released more than 1 million endangered Snake River sockeye salmon smolts from its Sawtooth Hatchery directly into the Upper Salmon River April 30 rather than transporting and then releasing the smolts into Redfish Lake Creek, which is normally the last stop for the smolts as they begin their downstream migration to the ocean.

Read the Full Article

Login to your account or Become a Member

Columbia River Treaty: Canada Develops Computer Model Showing How Different Dam Operations Affect Ecosystems, Culture, Economy

April 29th, 2021

Negotiating a transboundary water treaty is a complicated undertaking. There are many different, often competing, factors to consider. As Canada, British Columbia, and the Columbia Basin Indigenous Nations collaborate on positions and options for a modernized Columbia River Treaty with the United States, a new computerized model aims to help the parties understand just how these factors are interconnected.

Read the Full Article

Login to your account or Become a Member

Independent Science Panel Reviews Conflicting Studies On Impacts Of Columbia/Snake Dam Bypass Systems On Juvenile Salmonids, Smolt-To-Adult Returns

April 23rd, 2021

The bypass systems at Columbia/Snake dams for juvenile salmon and steelhead are mostly attracting the smaller fish, which return as adults in lower numbers than larger fish. Is it the size of the fish impacting survival, or “delayed mortality” from dam passage?

Read the Full Article

Login to your account or Become a Member

Late Spring Runoff Has River Managers Looking For Water To Aid Juvenile Salmon Migration; Rivers Too Low To Hit BiOp Spill Levels

April 23rd, 2021

With juvenile chinook and sockeye salmon, as well as juvenile steelhead, beginning their migration from the mid-Columbia River tributaries and hatcheries, but with very low water in the river due to a late spring runoff, salmon managers this week asked for augmentation flows originating from Grand Coulee Dam’s Lake Roosevelt.

Read the Full Article

Login to your account or Become a Member

Corps Moves Into Refill Mode For Dworshak Dam, Cold Water Will Be Needed To Cool Lower Granite Reservoir For Migrating Fish

April 22nd, 2021

After a week of increasing outflows at Idaho’s Dworshak Dam to support releases of juvenile salmon from Clearwater River hatcheries, the U.S. Army Corps of Engineers announced last Friday (April 16) that it will now begin to decrease those flows so that it can be assured of refilling the dam’s reservoir.

Read the Full Article

Login to your account or Become a Member