Download or read book Hydroacoustic Evaluation and Studies at The John Day Dam 1997 written by BioSonics, Inc and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation and Studies at Bonneville Dam Spring summer 1997 written by BioSonics, Inc and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization of Hydroacoustic Deployments at John Day Dam written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes short-term studies conducted in late November and early December 2001 to optimize hydroacoustic sampling techniques for John Day Dam before the 2002 fish passage efficiency (FPE) study. Knowledge gained in this study should significantly improve hydroacoustic sampling and the accuracy of estimates of fish passage at two locations that have presented problems in past studies. The spillway has been most problematic because many fish detected there were not entrained. Without correction, non-commitment of fish can result in multiple detections and overestimation of fish passage and FPE. Trash-rack-mounted, down-looking transducers for sampling unguided fish at a submerged traveling screen (STS) also have posed problems because the beam was aimed so far downstream that researchers had concerns about fish aspect and detectability. The deployments, aiming angles, and ping rates described here should eliminate all problems encountered in previous studies. This report describes hydroacoustic evaluations. The spill-bay deployment identified in this study should completely eliminate multiple detections of fish by limiting the sample volume for counting fish to the deep high-discharge volume adjacent to the gate. Results from testing of transducers deployed in a turbine intake with an STS suggest that, after testing in 2002, it may be possible to cut the number of powerhouse transducers sampling STS units by 50% or to double the spatial sampling coverage with the same number of transducers, all while improving detectability.
Download or read book Hydroacoustic Evaluation of the Spill Program for Fish Passage at John Day Dam in 1987 written by Llew Johnson and published by . This book was released on 1987 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation of Juvenile Salmonid Fish Passage at John Day Dam in Summer 1988 written by David A. Ouellette and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation and Studies at Bonneville Dam Spring 1997 written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation and Studies at The Dalles Dam Spring summer 1998 written by BioSonics, Inc and published by . This book was released on 1999 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation and Studies at The Dalles Dam Spring summer 1996 written by BioSonics, Inc and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Hydroacoustic Study at John Day Dam 1998 written by BioSonics, Inc and published by . This book was released on 1999 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Studies at John Day Dam Spring summer 1999 written by Samuel V. Johnston and published by . This book was released on 2000 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book John Day Dam 1999 Hydroacoustic Studies Quality Control Plan written by Hydroacoustic Technology, Inc and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses subjects listed under Section 8 of the original scope of work for the hydroacoustic studies at John Day Dam in 1999.
Download or read book The John Day Dam Columbia River Basin Washington Oregon written by B. C. Cook and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fixed location Hydroacoustic Evaluation of The Dalles Dam in 2001 written by K. D. Ham and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydroacoustic Evaluation of Notched Surface Flow Spill Gates and Overall Fish Passage at Rock Island Dam in 1997 written by Tom K. Iverson and published by . This book was released on 1997 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Hydroacoustic Evaluation of the Fish Passage Through the Powerhouse the Spillways and the Surface Collector at Rocky Reach Dam in the Spring and Summer of 1997 written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
