Quantification of the Probable Effects of Alternative In-River Harvest Regulations on Recovery of Snake River Fall Chinook Salmon : Final Report March 1996.

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The goal of this study was to quantify the probable effects that alternative strategies for managing in-river harvest would have on recovery of Snake River fall chinook salmon. This report presents the analysis of existing data to quantify the way in which various in-river harvest strategies catch Snake River bright (SRB) fall chinook. Because there has been disagreement among experts regarding the magnitude of in-river harvest impacts on Snake River fall chinook, the authors compared the results from using the following three different methods to estimate in-river harvest rates: (1) use of run reconstruction through stock accounting of escapement and ... continued below

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110 pages

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Cramer, Steven P. & Vigg, Steven March 1, 1996.

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Description

The goal of this study was to quantify the probable effects that alternative strategies for managing in-river harvest would have on recovery of Snake River fall chinook salmon. This report presents the analysis of existing data to quantify the way in which various in-river harvest strategies catch Snake River bright (SRB) fall chinook. Because there has been disagreement among experts regarding the magnitude of in-river harvest impacts on Snake River fall chinook, the authors compared the results from using the following three different methods to estimate in-river harvest rates: (1) use of run reconstruction through stock accounting of escapement and landings data to estimate harvest rate of SRB chinook in Zone 6 alone; (2) use of Coded Wire Tag (CWT) recoveries of fall chinook from Lyons Ferry Hatchery in a cohort analysis to estimate age and sex specific harvest rates for Zone 6 and for below Bonneville Dam; (3) comparison of harvest rates estimated for SRB chinook by the above methods to those estimated by the same methods for Upriver Bright (URB) fall chinook.

Physical Description

110 pages

Source

  • Other Information: PBD: Mar 1996

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  • Other: DE96014754
  • Report No.: DOE/BP-99654-14
  • Grant Number: AM79-93BP99654
  • DOI: 10.2172/373845 | External Link
  • Office of Scientific & Technical Information Report Number: 373845
  • Archival Resource Key: ark:/67531/metadc675816

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Office of Scientific & Technical Information Technical Reports

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  • March 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • July 5, 2016, 2:52 p.m.

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Cramer, Steven P. & Vigg, Steven. Quantification of the Probable Effects of Alternative In-River Harvest Regulations on Recovery of Snake River Fall Chinook Salmon : Final Report March 1996., report, March 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc675816/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.