EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Evaluation of Hydroacoustic Site on the Yukon River to Monitor Passage of Salmon Across the US Canada Border 2003

Download or read book Evaluation of Hydroacoustic Site on the Yukon River to Monitor Passage of Salmon Across the US Canada Border 2003 written by Carl Thomas Pfisterer and published by . This book was released on 2004 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Objective of this study was to identify a suitable location on the Yukon River to deploy hydroacoustic equipment to detect chinook and chum salmon migrating into Canada ... Transects were taken starting at White Rock in Canada proceeding downriver to a sandbar below Calico Bluff in Alaska"--P. 2.

Book Hydroacoustic Evaluation of Elevated Flow for Passing Downstream Migrating Juvenile Salmon and Steelhead at Foster Dam Oregon 16 21 1984

Download or read book Hydroacoustic Evaluation of Elevated Flow for Passing Downstream Migrating Juvenile Salmon and Steelhead at Foster Dam Oregon 16 21 1984 written by Oregon. Department of Fish and Wildlife and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oregon Dept. of Fish and Wildlife (ODFW) conducted flow experiments to optimize smolt passage through Foster Dam duing April and May 1984. ODFW used hydroacoustic techniques to monitor the smolts as they passed through the dam. Trends in passage were observed relative to diel period, flow, and location.

Book Hydroacoustic Evaluation of Fish Passage Efficiency at Bonneville Dam in 2001

Download or read book Hydroacoustic Evaluation of Fish Passage Efficiency at Bonneville Dam in 2001 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Portland District of the U.S. Army Corps of Engineers requested that scientists with the Pacific Northwest National Laboratory (PNNL) and the U.S. Army Engineer Research and Development Center (ERDC) conduct the hydroacoustic fish-passage studies described in this report. The ERDC also contracted with MEVATEC Corporation and Dyntel to provide staff ranging from scientists to technicians for the study. This study supports the Portland-District goal of maximizing fish passage efficiency (FPE) and obtaining 95% survival for juvenile salmon passing the Bonneville Project. This report presents results of two hydroacoustic studies of juvenile salmonids. One was a Project-wide study of fish-passage efficiency, and the other was more narrowly focused upon the approach, vertical distribution, and fish-guidance efficiency (FGE) of fish at Unit 15, where the Portland District extensively modified the gatewell and vertical barrier screen to improve gatewell flow and FGE. The goal of the larger of the two studies was to provide project-wide estimates of FPE, spill efficiency, and spill effectiveness for run-of-river fish passing the Bonneville Project during the 2001 out-migration. This type of study also provides estimates of the horizontal, vertical, and diel distributions of fish passage and FGE by turbine unit. These data will provide a baseline for evaluating the performance of future management efforts to improve juvenile fish passage. The goal of the second study was to assess the effect of gatewell and vertical-barrier-screen modifications on the FGE of Unit 15.

Book United States and Canada Yukon River Salmon Joint Technical Committee Plan

Download or read book United States and Canada Yukon River Salmon Joint Technical Committee Plan written by Yukon River Joint Technical Committee and published by . This book was released on 2005 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hydroacoustic Evaluation of Juvenile Salmonid Passage Through Experimental Routes at Bonneville Dam in 1998

Download or read book Hydroacoustic Evaluation of Juvenile Salmonid Passage Through Experimental Routes at Bonneville Dam in 1998 written by Gene R. Ploskey and published by . This book was released on 2001 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 2002

Download or read book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 2002 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Portland District of the U.S. Army Corps of Engineers requested that the Pacific Northwest National Laboratory (PNNL) and the U.S. Army Engineer Research and Development Center (ERDC) conduct fish-passage studies at Bonneville Dam in 2002. The ERDC contracted with MEVATEC Corporation to provide staff ranging from scientists to technicians to help conduct the study. This study supports the Portland-District goal of maximizing fish-passage efficiency (FPE) and obtaining 95% survival for juvenile salmon passing Bonneville Dam. In this report, we present results of two studies of juvenile salmonid passage at Bonneville Dam that we carried out in the 2002 downstream passage season April 20 through July 15, 2002. The first study of Project-wide FPE provides hourly estimates of fish passage and associated variances for all operating turbine units, spill bays, and the two sluiceway entrances at Powerhouse 1 (B1), as well as estimates of a variety of fish-passage efficiency and effectiveness measures. This was the third consecutive year of full-project hydroacoustic sampling and passage estimation. The second study was more narrowly focused on B2 turbines and had two components: (1) to sample the FGE at two modified turbine intakes and compare them with efficiencies of other B2 units that were sampled in the first study, and (2) to evaluate proportions of fish passing up into gatewell slots versus through screen gaps at a few B2 turbine intakes.

Book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 2005

Download or read book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 2005 written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Portland District of the U.S. Army Corps of Engineers requested that the Pacific Northwest National Laboratory (PNNL) conduct fish-passage studies at Bonneville Dam in 2005. These studies support the Portland District's goal of maximizing fish-passage efficiency (FPE) and obtaining 95% survival for juvenile salmon passing Bonneville Dam. Major passage routes include 10 turbines and a sluiceway at Powerhouse 1 (B1), an 18-bay spillway, and eight turbines and a sluiceway at Powerhouse 2 (B2). In this report, we present results of two studies related to juvenile salmonid passage at Bonneville Dam. The studies were conducted between April 16 and July 15, 2005, encompassing most of the spring and summer migrations. Studies included evaluations of (1) Project fish passage efficiency and other major passage metrics, and (2) smolt approach and fate at B1 Sluiceway Outlet 3C from the B1 forebay. Some of the large appendices are only presented on the compact disk (CD) that accompanies the final report. Examples include six large comma-separated-variable (. CSV) files of hourly fish passage, hourly variances, and Project operations for spring and summer from Appendix E, and large Audio Video Interleave (AVI) files with DIDSON-movie clips of the area upstream of B1 Sluiceway Outlet 3C (Appendix H). Those video clips show smolts approaching the outlet, predators feeding on smolts, and vortices that sometimes entrained approaching smolts into turbines. The CD also includes Adobe Acrobat Portable Document Files (PDF) of the entire report and appendices.

Book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 1997

Download or read book Hydroacoustic Evaluation of Fish Passage Through Bonneville Dam in 1997 written by and published by . This book was released on 1998 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "BioSonics was contracted by COE to conduct hydroacoustic studies at Bonneville Dam in 1997 in support of fish passage improvements. The work was organized into two Tasks according to the hydroacoustic methods. Task 1 has three objectives: 1.) Estimate the number of juvenile salmon passing into the sluicechute at the second powerhouse. 2.) Estimate the effects of sluicechute operation on the number submerged traveling screen (STS) guidance efficiency of juvenile salmon entering intake 11A. 3.) Evaluate different types of transducer mounts and mounting locations to estimate juvenile fish passage through the spillway. Task 2 has a single objective: determine the spatial and temporal distribution of juvenile salmon in the forebay of Bonneville Dam, by sluicechute operation, and by day and night. All three objectives of Task 1 were all addressed with fixed-location hydroacoustics. The Task 2 objective was addressed with mobile acoustic techniques." From executive summary.

Book Hydroacoustic Monitoring of Downstream Migrant Salmon and Steelhead at Wells Dam in Spring 1984

Download or read book Hydroacoustic Monitoring of Downstream Migrant Salmon and Steelhead at Wells Dam in Spring 1984 written by and published by . This book was released on 1984 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: The downstream migration of salmon and steelhead in spring 1984 at Wells Dam on the mid-Columbia River was monitored using hydroacoustics. The primary objective of this research was to document run timing and describe the distribution of smolts at the dam. The study occurred from April 2 to June 15, 1984. Four transducers were deployed at the bases of pier noses at Turbines 3, 5, 7, and 9 and aimed up 24° into the forebay. They were sampled once every hour, 24 hours per day, for 75 days. An index of fish passage was reported daily to the Water Budget Center in Portland, Oregon. This index was computed as follows. For each 24-h period, separate fish passage rates (number/time) at each of the four sampling locations were estimated by dividing the sum of the ''weighted'' fish detections by total sample time. These four values then were averaged to produced the daily index (number/day/location). The first substantial increase in fish passage occurred on April 25, 1984 due to the chinook released from the Winthrop hatchery on April 23. During May, run timing was fairly uniform except for peaks on May 2, 14, 18, and 22. The unexpected peak in run size that occurred from May 29 to June 2 could have been caused by juvenile mountain whitefish. Although the proportion of each species varied, chinook passage probably peaked in late April, and steelhead in the first two weeks of May; sockeye passage was variable throughout the study. The data indicated that most downstream migrants were distributed high in the water column and toward the western end of the dam. Average hourly passage rates for day and night were similar, but more fish passed the dam during the longer period of daylight than the shorter period of darkness. 7 refs., 13 figs.

Book Hydroacoustic Evaluation of Fish Passage Through the Powerhouse and Surface Collectors at Rocky Reach Dam in the Spring of 1998

Download or read book Hydroacoustic Evaluation of Fish Passage Through the Powerhouse and Surface Collectors at Rocky Reach Dam in the Spring of 1998 written by Tracey W. Steig and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: