Difference between revisions of "Entrainment"
From Glen Canyon Dam AMP
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*[https://www.usbr.gov/uc/progact/amp/twg/2024-01-25-twg-meeting/20240125-TWGMeeting-HydroacousticMonitoring-508-UCRO.pdf Hydroacoustic Monitoring ] | *[https://www.usbr.gov/uc/progact/amp/twg/2024-01-25-twg-meeting/20240125-TWGMeeting-HydroacousticMonitoring-508-UCRO.pdf Hydroacoustic Monitoring ] | ||
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| + | '''2023''' | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2023-11-08-twg-meeting/20231108-NonnativeFishDistributionLakePowellForebay-508-UCRO.pdf Characterizing the fish assemblage in the Lake Powell forebay and identifying the potential for nonnative fish escapement into the Lower Colorado River ] | *[https://www.usbr.gov/uc/progact/amp/twg/2023-11-08-twg-meeting/20231108-NonnativeFishDistributionLakePowellForebay-508-UCRO.pdf Characterizing the fish assemblage in the Lake Powell forebay and identifying the potential for nonnative fish escapement into the Lower Colorado River ] | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2023-04-13-twg-meeting/20230413-HydroacousticFishDistributionLakePowell-508-UCRO.pdf Hydroacoustic Fish Distribution] | *[https://www.usbr.gov/uc/progact/amp/twg/2023-04-13-twg-meeting/20230413-HydroacousticFishDistributionLakePowell-508-UCRO.pdf Hydroacoustic Fish Distribution] | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2023-04-13-twg-meeting/20230413-CharacterizingFishAssemblageLakePowellForebay-508-UCRO.pdf Characterizing the fish assemblage in the Lake Powell forebay and identifying the potential for nonnative fish escapement into the Lower Colorado River] | *[https://www.usbr.gov/uc/progact/amp/twg/2023-04-13-twg-meeting/20230413-CharacterizingFishAssemblageLakePowellForebay-508-UCRO.pdf Characterizing the fish assemblage in the Lake Powell forebay and identifying the potential for nonnative fish escapement into the Lower Colorado River] | ||
*[https://www.usbr.gov/uc/progact/amp/amwg/2023-02-16-amwg-meeting/20230216-GlenCanyonDamFishExclusionProjectOverview-508-UCRO.pdf Glen Canyon Dam Fish Exclusion: Project Overview] | *[https://www.usbr.gov/uc/progact/amp/amwg/2023-02-16-amwg-meeting/20230216-GlenCanyonDamFishExclusionProjectOverview-508-UCRO.pdf Glen Canyon Dam Fish Exclusion: Project Overview] | ||
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| + | '''2022''' | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2022-10-13-twg-meeting/20221013-HydroacousticFishDistribution-508-UCRO.pdf Hydroacoustic Fish Distribution ] | *[https://www.usbr.gov/uc/progact/amp/twg/2022-10-13-twg-meeting/20221013-HydroacousticFishDistribution-508-UCRO.pdf Hydroacoustic Fish Distribution ] | ||
*[https://www.usbr.gov/uc/progact/amp/amwg/2022-08-18-amwg-meeting/20220818-GlenCanyonDamFishEscapementOptions-508-UCRO.pdf Glen Canyon Dam Fish Escapement Options ] | *[https://www.usbr.gov/uc/progact/amp/amwg/2022-08-18-amwg-meeting/20220818-GlenCanyonDamFishEscapementOptions-508-UCRO.pdf Glen Canyon Dam Fish Escapement Options ] | ||
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*[https://www.usbr.gov/uc/progact/amp/twg/2022-04-13-twg-meeting/20220413-CharacterizinFishAssemblageLakePowellForebay-Presentation-508-UCRO.pdf Characterizing the fish assemblage of the Lake Powell forebay: identifying the potential for nonnative fish escapement through Glen Canyon Dam and into the lower Colorado River ] | *[https://www.usbr.gov/uc/progact/amp/twg/2022-04-13-twg-meeting/20220413-CharacterizinFishAssemblageLakePowellForebay-Presentation-508-UCRO.pdf Characterizing the fish assemblage of the Lake Powell forebay: identifying the potential for nonnative fish escapement through Glen Canyon Dam and into the lower Colorado River ] | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2022-04-13-twg-meeting/20220413-TWGMeeting-FinalMinutes-508-UCRO.pdf Glen Canyon Fish Escapement Options ] | *[https://www.usbr.gov/uc/progact/amp/twg/2022-04-13-twg-meeting/20220413-TWGMeeting-FinalMinutes-508-UCRO.pdf Glen Canyon Fish Escapement Options ] | ||
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| + | '''2021''' | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2021-10-14-twg-meeting/20211014-ExistingPlannedMonitoringNon-NativeAquaticSpeciesLakePowellBelowGlenCanyonDam-Presentation-508-UCRO.pdf Existing and Planned Monitoring of Non-Native Aquatic Species in Lake Powell and Below Glen Canyon Dam] | *[https://www.usbr.gov/uc/progact/amp/twg/2021-10-14-twg-meeting/20211014-ExistingPlannedMonitoringNon-NativeAquaticSpeciesLakePowellBelowGlenCanyonDam-Presentation-508-UCRO.pdf Existing and Planned Monitoring of Non-Native Aquatic Species in Lake Powell and Below Glen Canyon Dam] | ||
*[https://www.usbr.gov/uc/progact/amp/twg/2021-10-14-twg-meeting/20211014-LakePowellFishMonitoringStudy2021-2024-Presentation-508-UCRO.pdf Lake Powell Fish Monitoring Study 2021 -2024 ] | *[https://www.usbr.gov/uc/progact/amp/twg/2021-10-14-twg-meeting/20211014-LakePowellFishMonitoringStudy2021-2024-Presentation-508-UCRO.pdf Lake Powell Fish Monitoring Study 2021 -2024 ] | ||
Latest revision as of 14:36, 1 October 2024
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Entrainment of warmwater nonnative fish through Glen Canyon DamWhen the reservoir was cold (<10 °C) and well-mixed, most fishes selected gently sloping habitat such as that found in Wahweap Bay (5 km from GCD), and thus winter entrainment risk is low for most species. When the reservoir was stratified (>20 °C surface temp.) fish were active in the forebay epilimnion within meters of the dam, increasing entrainment when the dam penstock is positioned within the epilimnion, as it was during our study, rather than below the thermocline when the reservoir water level is higher.
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