Effects of Dissolved Gas Supersaturation on Fish Residing in the Snake and Columbia Rivers, 1997 Annual Report.

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Description

Large amounts of spill at dams has commonly generated levels of dissolved gas supersaturation that are higher than levels established by state and federal agencies setting criteria for acceptable water quality in the Columbia and Snake Rivers. Large spill volumes are sometimes provided voluntarily to increase the proportion of migrating juvenile salmon that pass dams through nonturbine routes. However, total dissolved gas supersaturation (TDGS) resulting from spill in past decades has led to gas bubble disease (GBD) in fish. Therefore, during the period of high spill in 1997, the authors monitored the prevalence and severity of gas bubble disease by ... continued below

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60 pages

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Ryan, Brad A. April 1, 1998.

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Description

Large amounts of spill at dams has commonly generated levels of dissolved gas supersaturation that are higher than levels established by state and federal agencies setting criteria for acceptable water quality in the Columbia and Snake Rivers. Large spill volumes are sometimes provided voluntarily to increase the proportion of migrating juvenile salmon that pass dams through nonturbine routes. However, total dissolved gas supersaturation (TDGS) resulting from spill in past decades has led to gas bubble disease (GBD) in fish. Therefore, during the period of high spill in 1997, the authors monitored the prevalence and severity of gas bubble disease by sampling resident fish in Ice Harbor reservoir and downstream from Ice Harbor and Bonneville Dams.

Physical Description

60 pages

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  • Other Information: PBD: 1 Apr 1998

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  • Report No.: DOE/BP-93605-2
  • Grant Number: 1996AI93605
  • DOI: 10.2172/14322 | External Link
  • Office of Scientific & Technical Information Report Number: 14322
  • Archival Resource Key: ark:/67531/metadc628198

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 1998

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  • June 16, 2015, 7:43 a.m.

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Ryan, Brad A. Effects of Dissolved Gas Supersaturation on Fish Residing in the Snake and Columbia Rivers, 1997 Annual Report., report, April 1, 1998; United States. (digital.library.unt.edu/ark:/67531/metadc628198/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.