Author: R. A. Moursund
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ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Hydroacoustic Evaluation of the Effects of Spill Treatments on Fish Passage at Ice Harbor Dam in 2003
Author: R. A. Moursund
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Hydroacoustic Evaluation of the Effects of Spill Treatments on Fish Passage at Ice Harbor Dam in 2003--Final Report 31 March 2004
Author:
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Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Hydroacoustic Evaluation of Fish Passage at Ice Harbor Dam with a Removable Spillway Weir in 2005
Author: Russell A. Moursund
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ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Hydroacousitc Evaluation of Juvenile Fish Passage at Ice Harbor Dam in Spring 1987
Author: Bruce H. Ransom
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ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Re-Analysis of Hydroacoustic Fish-Passage Data from Bonneville Dam After Spill-Discharge Corrections
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The U.S. Army Corps of Engineers - Portland District asked Pacific Northwest National Laboratory to re-analyze four years of fixed-aspect hydroacoustic data after the District made adjustments to spill discharge estimates. In this report, we present new estimates of all major fish-passage metrics for study years 2000, 2001, 2002, and 2004, as well as estimates for 2005. This study supports the Portland District and its effort to maximize survival of juvenile salmon passing Bonneville Dam. Major passage routes through Bonneville Dam include 10 turbines and a sluiceway at Powerhouse 1 (B1), an 18-bay spillway, and eight turbines at Powerhouse 2 (B2) and a sluiceway including the B2 Corner Collector. The original reports and all associated results, discussion, and conclusions for non flow-related metrics remain valid and useful, but effectiveness measures for study years 2000, 2001, 2002, and 2004 as reported in previous reports by Ploskey et al. should be superseded with the new estimates reported here. The fish-passage metrics that changed the most were related to effectiveness. Re-analysis produced spill effectiveness estimates that ranged from 12% to 21% higher than previous estimates in spring and 16.7% to 27.5% higher in summer, but the mean spill effectiveness over all years was only slightly above 1:1 (1.17 for spring and 1.29 for summer). Conversely surface-passage effectiveness decreased in the years this metric was measured (by 10.1% in spring and 10.7% in summer of 2002 and 9.5% in spring and 10.2% in summer of 2004). The smallest changes in the re-analysis were in project fish passage efficiency (0%-1%) and spill efficiency (0.9%-3.0%).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The U.S. Army Corps of Engineers - Portland District asked Pacific Northwest National Laboratory to re-analyze four years of fixed-aspect hydroacoustic data after the District made adjustments to spill discharge estimates. In this report, we present new estimates of all major fish-passage metrics for study years 2000, 2001, 2002, and 2004, as well as estimates for 2005. This study supports the Portland District and its effort to maximize survival of juvenile salmon passing Bonneville Dam. Major passage routes through Bonneville Dam include 10 turbines and a sluiceway at Powerhouse 1 (B1), an 18-bay spillway, and eight turbines at Powerhouse 2 (B2) and a sluiceway including the B2 Corner Collector. The original reports and all associated results, discussion, and conclusions for non flow-related metrics remain valid and useful, but effectiveness measures for study years 2000, 2001, 2002, and 2004 as reported in previous reports by Ploskey et al. should be superseded with the new estimates reported here. The fish-passage metrics that changed the most were related to effectiveness. Re-analysis produced spill effectiveness estimates that ranged from 12% to 21% higher than previous estimates in spring and 16.7% to 27.5% higher in summer, but the mean spill effectiveness over all years was only slightly above 1:1 (1.17 for spring and 1.29 for summer). Conversely surface-passage effectiveness decreased in the years this metric was measured (by 10.1% in spring and 10.7% in summer of 2002 and 9.5% in spring and 10.2% in summer of 2004). The smallest changes in the re-analysis were in project fish passage efficiency (0%-1%) and spill efficiency (0.9%-3.0%).
Hydroacoustic Evaluation of the Spill Program for Fish Passage at John Day Dam in 1987
Author: Llew Johnson
Publisher:
ISBN:
Category : Fishways
Languages : en
Pages : 93
Book Description
Publisher:
ISBN:
Category : Fishways
Languages : en
Pages : 93
Book Description
Laboratory Evaluation of the 1-on-10 Slope Ice Harbor Fishway Design
Author: Clark S. Thompson
Publisher:
ISBN:
Category : Fishways
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Fishways
Languages : en
Pages : 28
Book Description
Hydroacoustic Evaluation of the Efficiencies of the Ice and Trash Sluiceway and Spillway at Ice Harbor Dam for Passing Downstream Migrating Juvenile Salmon and Steelhead, 1983
Author: Llew Johnson
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages :
Book Description
Hydroacoustic Evaluation of Fish Distribution at the Ice Harbor Dam Removable Spillway Weir in 2006
Author: Kenneth D. Ham
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Category :
Languages : en
Pages :
Book Description
Publisher:
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Category :
Languages : en
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Book Description
Hydroacoustic Evaluation of Fish-Passage Efficiency at Bonneville Dam in 2001
Author:
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Category : Bonneville Dam (Or. and Wash.)
Languages : en
Pages :
Book Description
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.
Publisher:
ISBN:
Category : Bonneville Dam (Or. and Wash.)
Languages : en
Pages :
Book Description
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.