Scott, Shane

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ScholarWorks@UMass Amherst

University of Massachusetts AmherstScholarWorks@UMass AmherstInternational Conference on Engineering andEcohydrology for Fish PassageInternational Conference on Engineering andEcohydrology for Fish Passage 2016Jun 20th, 5:00 PM - 5:15 PMPushing and Pulling II: Survey of Two BehavioralFish Guidance Systems (FGSs) Designed toImprove Safe Downstream Passage of AnadromousSalmonidsShane ScottS. Scott & Associates LLCFollow this and additional works at: https://scholarworks.umass.edu/fishpassage_conferenceThis Event is brought to you for free and open access by the Fish Passage Community at UMass Amherst at ScholarWorks@UMass Amherst. It hasbeen accepted for inclusion in International Conference on Engineering and Ecohydrology for Fish Passage by an authorized administrator ofScholarWorks@UMass Amherst. For more information, please contact scholarworks@library.umass.edu.Scott, Shane, "Pushing and Pulling II: Survey of Two Behavioral Fish Guidance Systems (FGSs) Designed to Improve SafeDownstream Passage of Anadromous Salmonids" (2016). International Conference on Engineering and Ecohydrology for Fish Passage. 30.https://scholarworks.umass.edu/fishpassage_conference/2016/June20/30Survey of Two Behavioral Fish Guidance Systems (FGSs) Designed to Improve Safe Downstream Passage of Anadromous SalmonidsShane ScottS. Scott & Associates LLC(360) 601-2391shane@sscottandassociates.com In general, juvenile anadromous salmonids and clupeids (herrings and shads): Follow bulk flow in the river thalweg Are surface oriented Cue on flow and turbulence  May respond to changes in water qualityMigratory cues are disrupted in reservoirsProblemHow to get downstream migrants safely past a dam or intake???Spillway Passage Collection and Transport SystemsPhysical Bypass SystemsScreened Intake and BypassTurbine PassageBubble CurtainsAcousticNon-Physical GuidanceLightsFish Guidance System (FGS)Fish Guidance System (FGS) Provides several cues to alter fish migration routes• Physical• Visual• HydraulicSpillwayPowerhouseForebay Hydraulics and Fish BehaviorSpillwayPowerhouseBulkFlowForebay Hydraulics and Fish BehaviorSpillwayPowerhouseBulkFlowIntermediate ZoneForebay Hydraulics and Fish BehaviorSpillwayPowerhouseBulkFlowTurbineFlownetSpillwayFlownetNearfieldZoneIntermediate ZoneForebay Hydraulics and Fish BehaviorSpillwayPowerhouseBulkFlowTurbineFlownetSpillwayFlownetNearfieldZoneIntermediate ZoneZone of SeparationForebay Hydraulics and Fish BehaviorSpillwayPowerhouseBulkFlowFish Guidance SystemTurbineFlownetSpillwayFlownetNearfieldZoneIntermediate ZoneZone of SeparationForebay Hydraulics and Fish BehaviorFGS• 80% Guidance• Reduced turbine entrainment 16%  Lower Granite Dam FGS ResultsBonneville Dam, Powerhouse 2Fish Guidance SystemJuvenile BypassChannelFish Guidance SystemPowerhouse 15% guidance improvement for juvenile spring chinook passage Guided fish entered the bypass at 2 times the rate of unguided fishFGS ResultsBonneville DamCowlitz Falls DamGeorgiana Slough, Sacramento RiverLos Padres DamWeston DamHydro KennebecLockwood DamGilman DamLower Granite  DamFGS InstallationsGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CAGeorgiana Slough Sacramento River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CALos Padres ReservoirCarmel River, CA Permanent Physical Structure Significantly Improves Juvenile Fish Guidance and Survival  Flexible Configuration to Allow Improvements Can Reduce Operations Costs Know Site Specific Conditions Provide Adequate Bypass Address Debris Work With Manufacturer Be Flexible – Modifications Will Further Improve FGS PerformanceFish Guidance SystemQUESTIONS?

Pushing and Pulling II: Survey of Two Behavioral Fish Guidance Systems (FGSs) Designed to Improve Safe Downstream Passage of Anadromous Salmonids

https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2112&context=fishpassage_conference

Pushing and Pulling II: Survey of Two Behavioral Fish Guidance Systems (FGSs) Designed to Improve Safe Downstream Passage of Anadromous Salmonids

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