This page discusses the effects on fish from hydroelectric power system.

November 2000 This video from CBS news discusses the situation in the Columbia River.
60-Minutes Leslie Stahl Fuss Over Fish

Click here: Fish Fuss Over Salmon - 60 Minutes Videos - CBS News

May 2011 This first video
 from Public Television website shows the net effect on salmon populations in the Snake River in Idaho.

Watch the full episode. See more Nature.

Fish Friends
A lawsuit was filed in Portland, Oregon federal court to deal with this problem. Many web-sites and articles have been written about it.

Salmon Justice: An Interview With Judge James Redden — High Country News

History of a decline."

In 1933, Rock Island Dam was completed 44 miles south of the Canadian border was completed in 1933 as detailed in this page about Native Fisheries. The Native Americans immediately complained to Congress about how the dams were going to destroy all of the fish. In response to these claims that the dams would kill all of the fish, fish-ladders were ordered by Congress and testing of the downstream passage survivability was conducted.

Live-fish testing was conducted by putting live fish into the turbines and catching them with nets across the discharge.
Observations of these fish found survival rates to be greater than 95% so the dams were deemed "survivable" to the downstream migrant fish. This was a satisfactory arrangement for everyone. Dams were built, electricity was being generated and fish could pass the dams in both directions with acceptable survival rates.

Everything went fine until the 1980's when the fish populations suddenly went into a serious decline.

This coincides with USACE Hydro Design Center deploying their first generation of *Seawell electronic 3-D cams.
Placing the events about the turbine control systems into this timeline of the impact of hydropower on fish populations will provide a greater understanding of this root cause of the fish mortality problem and the turbine blade misalignment. Procurement favoritism in the acquisition and deployment of the turbine blade controls systems all along the Snake and Columbia Rivers, which started in the mid 1980's after USACE Hydro Design Center reverse-engineered Woodward's electronic 3-D cam.

*Seawell was the name of the company that built and deployed the first generation of USACE's 3-D cam designs. Note that in 1980 USACE acquired 18 perfectly functional Woodward Governor electronic 3-D cams for Bonneville Dam, then - as if that acquisition had never happened USACE claimed to have "invented" a digital electronic 3-D cam 10 years later in 1990. This new "invention" of USACE's personnel was subsequently deployed into every hydropower dam on the Snake and Columbia Rivers. It is our contention that this one action is a root-cause of the fish-mortality problem.

Fish Passage Center

Save Our Wild Salmon

History Elwha and Glines Canyon Dams

Click here: McNary Dam and Fish Viewing Room
Baltic Sea RAC:: Peter Mohnert/Robert Vollborn, European Anglers Alliance

Fish-friendly Hydro Turbine - Power Engineering

History of Bull Run - Salmon and the Sandy River through time
Zeroing Out the Messenger

Low Impact Hydropower Institute
LIHI Criterion

LIHI News #1

King Salmon in decline

Shear Stresses in Hydroelectric Turbines

NW Fishletter (No. 251-September 4, 2008)

NW FishLetter (No. 256 January 8, 2009)

Cool weather and a hard rain likely played a large role in this year's early return of fall Chinook to the Columbia River. Harvest managers had hoped to keep the popular Buoy 10 fishery in the lower river open through the Labor Day weekend, but anglers had caught their 6,500-fish quota by Aug. 25.

Federal District Court Judge James Redden ruled Aug. 21 that the new BiOp will not get any independent scientific scrutiny before he decides whether to throw it out. Plaintiff environmental and fishing groups are mounting a challenge to the new salmon plan and have asked for such a review. But attorneys for the defendants, especially Coby Howell from the Department of Justice, evidently swayed the judge.

La Niņa is lingering, but that part of the world where El Niņos are born is warming once again. In the equatorial Pacific, waters have warmed to above-average temperatures in some places, from several degrees below average last winter. The waters off Washington and Oregon have remained 2 degrees F below average. How long that will last is anybody's guess. The Sept. 2 update from the National Oceanic and Atmospheric Administration's Climate Prediction Center says El Niņo/Southern Oscillation-neutral conditions are expected to continue through the fall.

The Northwest Power and Conservation Council voted 6-2  on Aug. 28 to release its latest draft of the region's fish and wildlife plan for public comment. It's the latest step in an amendment process that began last October. Oregon members voted against releasing the document. A final version will be released after a 60-day public comment period.

All parties in litigation over the USFWS' 2006 sturgeon BiOp have reached an agreement that calls for extending interim operations at Libby Dam to help the ESA-listed sturgeon spawn in the Kootenai River below the dam. If these attempts at mimicking spring flows and reducing temperatures don't work, the Corps of Engineers will then boost spillway flows to see if that helps the sturgeon to reproduce.

FishWire is an Energy NewsData fish & wildlife news service reporting on salmon recovery in the Pacific Northwest.  It previews each issue of NW Fishletter and is a feature of FishWEB, a public service guide to NW salmon recovery.