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Book A Fisheries Evaluation of the Westside Ditch and Town Canal Fish Screening Facilities Spring 1990

Download or read book A Fisheries Evaluation of the Westside Ditch and Town Canal Fish Screening Facilities Spring 1990 written by and published by . This book was released on 1990 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pacific Northwest Laboratory (PNL) evaluated the effectiveness of new fish screening facilities in the Westside Ditch and Town Canal, near Ellensburg, in south-central Washington State. At the Town Canal, we estimated that 0.3% of steelhead Oncorhynchus mykiss smolts released during tests were significantly descaled. The time required for 50% of the fish in the two steelhead test groups to exit from the Town Screens forebay ranged from 12 h to>85 h. Integrity tests at the Town Screens indicated that none of the rainbow trout fry released in front of the rotary drum screens passed through the screens, although 8.5% of the native zero-age chinook salmon fry diverted from the river into the screening facility were lost through the screens. At the Westside Screens, 16.8% of native zero-age chinook salmon fry passed through the screens. Most of the chinook salmon lost through the screens were small,

Book A Fisheries Evaluation of the Westside Ditch and Town Canal Fish Screening Facilities

Download or read book A Fisheries Evaluation of the Westside Ditch and Town Canal Fish Screening Facilities written by United States. Bonneville Power Administration and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Fisheries Evaluation of the Westside Ditch and Wapato Canal Fish Screening Facilities Spring 1989

Download or read book A Fisheries Evaluation of the Westside Ditch and Wapato Canal Fish Screening Facilities Spring 1989 written by and published by . This book was released on 1990 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bonneville Power Administration, the United States Bureau of Reclamation, and the Washington State Department of Ecology are funding the construction and evaluation of fish passage and protection facilities at irrigation and hydroelectric diversions in the Yakima River Basin, Washington State. The programs provide offsite enhancement to compensate for fish and wildlife losses caused by hydroelectric development throughout the Columbia River Basin, and they address natural propagation of salmon to help mitigate the impact of irrigation in the Yakima River Basin. The Westside Ditch and Wapato Screens are two of the juvenile screening facilities. This report evaluates the effectiveness of the screens facilities for intercepting and returning juvenile salmonids unharmed to the Yakima River from which they were diverted. We evaluated the effectiveness of new fish screening facilities in the Westside Ditch and Wapato Canal in south-central Washington State. The screen integrity tests indicated that test fish released in front of the screens could enter the canal behind the screens. The study emphasized salmonids. Test fish were steelhead Oncorhynchus mykiss smolts, spring chinook salmon O. tshawytscha smolts, and rainbow trout O. mykiss fry. Evaluations were conducted during typical spring flows in the diversion. 13 refs., 10 figs., 6 tabs.

Book Fish Passage Technologies

Download or read book Fish Passage Technologies written by and published by Office of Technology Assessment. This book was released on 1995 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fish passage technologies protection at hydropower facilities

Download or read book Fish passage technologies protection at hydropower facilities written by and published by DIANE Publishing. This book was released on 1995 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this report is technologies for fish passage around hydropower generation facilities and protection against entrainment and turbine mortality. Emphasis is given to Federal Energy Regulatory Commission (FERC)-licensed hydropower projects where fish protection is a subject of controversy and congressional interest due to the Federal Power Act (FPA) and the Electric Consumers Protection Act (ECPA). Thus institutional issues related to FERC-relicensing are also discussed. (Major points of controversy are high-lighted in box 1.1).

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Programmatic EIS Yakima River Basin Water Enhancement Phase 2 Project

Download or read book Programmatic EIS Yakima River Basin Water Enhancement Phase 2 Project written by and published by . This book was released on 1999 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government reports annual index

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Fisheries Evaluation of the Richland and Wapato Canal Fish Screening Facilities Spring 1987

Download or read book A Fisheries Evaluation of the Richland and Wapato Canal Fish Screening Facilities Spring 1987 written by and published by . This book was released on 1988 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: We evaluated the effectiveness of new fish screening facilities at the Richland and Wapato canals in south-central Washington State. The screen integrity tests at the Richland Screens indicated that 100% of fall chinook salmon fry (Oncorhynchus tshawytscha) released in front of the screens were prevented from entering the canal behind the screens. Our estimate is based on a 61% catch efficiency for control fish planted behind the screens. At the Wapato Canal, we estimated that between 3% and 4% of the test fish were either impinged on the screen surface and passed over the screens or passed through faulty screen seals. Our estimate is based over the screens or passed through faulty screen seals. Our estimate is based on a greater than 90% capture of control fish released in front of the screens. At the Wapato Screens, we estimated that 0.8% of steelhead smolts (Salmo gairdneri) and 1.4% of spring chinook salmon smolts released during low canal flow tests wee descaled. During full canal flow tests, 1.6% of the steelhead and 3.1% of the spring chinook salmon released were descaled. The fish return pipe at the Wapato Canal was tested: the estimate of descaled test fish wa not different from the estimate of descaled control fish. The time required for fish to exit from the Wapato Screen forebay varied with species and with canal flow. During low canal flows, 43.2% of steelhead and 61.6% of spring chinook salmon smolts released at the trash racks were captured in the fish return within 96 hr. 11 refs., 11 figs., 10 tabs.