The new Opal Springs fish ladder became operational on Nov. 15 and an automated fish detection system was installed 4 days later. In the first 13 days (11/19 to 12/1) 23 trout, 28 whitefish, and 3 steelhead have been counted. That’s an excellent start.
The Bend Bulletin ran a story today on the Opal Springs fish ladder. It’s worth a quick read. I’m glad to see the new ownership of the local paper paying more attention to environmental news.
Here is a short video of the first steelhead in the new Opal Springs fish ladder. First volitional passage in almost 60 years. So very cool.
For over 20 years a wide range of companies, organizations, agencies, and individuals have been working on the reintroduction of steelhead and salmon into the upper Deschutes Basin above Lake Billy Chinook. This includes the middle Deschutes, the Crooked River, the Metolius Rivers, and their tributaries.
To the surprise of fish biologists who had anticipated that Whychus Creek and the Metolius Rivers would be the primary destinations, the great majority of the returning steelhead and Chinook salmon have attempted to head up the Crooked River to spawn. The overwhelming preference for the Crooked has been the case every year there have been anadromous fish returns. Unfortunately, until last week a dam at the bottom of the Crooked River had largely blocked upstream passage for these returning anadromous fish. Read More »
Last June, Portland General Electric released a comprehensive, multiyear water quality study of Lake Billy Chinook, the rivers that supply it, and the lower Deschutes River into which water is released. Among other things, the report showed that the Crooked River contains significant amounts of pollution. This pollution combined with sunlight generates suspended algae on the surface of Lake Billy Chinook which is subsequently released into Lake Simtutus and then the lower Deschutes River. Algae blooms are increasing in occurrence, leading the Oregon Health Authority to warn last June that “harmful algae blooms” could “routinely develop in the lake”.
One of the shortcomings in the Habitat Conservation Plan is lack of adequate consideration for water quality. Clearly, high temperatures and pollution can have adverse impacts on fish and the aquatic environment, including mortality (“take”). Irrigation return flows are “covered activities” but the HCP does not adequately examine impacts on water quality from agricultural runoff or provide for minimum standards in covered waterways.Read More »
Three federal agencies (Bureau of Reclamation, National Marine Fisheries Service, and US Fish & Wildlife) manage water releases out of Prineville Reservoir into the Crooked River. As of last week, they believe flows for fish and wildlife can be maintained through the winter. Prineville Reservoir has a capacity of 148,640 acre feet of water, approximately half of which is guaranteed for irrigation. Water in excess of that at the beginning of irrigation season is “fish water” to be released for the “maximum biological benefit” for fish and wildlife. Irrigation season ends in a month and Prineville Reservoir is still 66% full, leaving plenty of fish water to release during the winter. Keep reading for more details.Read More »
The July 24th Source Weekly contained a guest column by Greg McMillan, president of the Deschutes River Alliance, that needs a response. It is absolutely true that attempts to reintroduce salmon and steelhead into the upper Deschutes basin above Lake Billy Chinook have been extremely disappointing. It is important to understand, however, that adult returns for salmon and steelhead have been plunging in the entire Columbia River basin and much of the Pacific Northwest. The truth is that many anadromous fish runs are on the path to extinction due to habitat loss, dams, over harvest, hatcheries, and the heating of the Pacific which has led to the collapse of the food web in many areas. This has nothing to do with local reintroduction efforts.Read More »