Amaral, Steve

Birmann, Mike

Caumartin, Jean

Jacobson, Paul

Popper, Art

Pratt, Tom

English

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, 3:00 PM - 3:15 PMPushing and Pulling I: Can Vibration orElectromagnetic Fields Guide DownstreamMigrating Silver Eels?Steve AmaralArt PopperMike BirmannJean CaumartinTom PrattSee next page for additional authorsFollow 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.Amaral, Steve; Popper, Art; Birmann, Mike; Caumartin, Jean; Pratt, Tom; and Jacobson, Paul, "Pushing and Pulling I: Can Vibration orElectromagnetic Fields Guide Downstream Migrating Silver Eels?" (2016). International Conference on Engineering and Ecohydrology forFish Passage. 25.https://scholarworks.umass.edu/fishpassage_conference/2016/June20/25Presenter InformationSteve Amaral, Art Popper, Mike Birmann, Jean Caumartin, Tom Pratt, and Paul JacobsonThis event is available at ScholarWorks@UMass Amherst: https://scholarworks.umass.edu/fishpassage_conference/2016/June20/25Can vibration or electromagneticfields guide downstream migratingsilver eels?Steve AmaralArt Popper Mike BirmannJean CaumartinTom Pratt Paul JacobsonChallenge: Downstream Eel Passage on Large Rivers• Eel Passage Research Center: a collaboration of hydro utilities and government agencies• Research techniques that can be used to guide and collect silver eels for transportation and release downstream of the hydro projectsOVIVO® FISH GUIDANCE SYSTEM - SOUND PROJECTOR ARRAYSVibration and Electromagnetic Fields• Infrasound (vibration) has been successfully used to repel European eels in lab and field (Sand et al. 2001)• Eels are sensitive to EMF changes, but we unsure about EMF’s ability to repel eelsResearch Objectives• We tested the response of silver American eels to vibration and EMF to determine if either stimulus could elicit directional avoidance behaviors that could be used to guide eelsMethods• Tested in Alden’s small flume testing facility under low flow (2.8 m3/s)EMF test enclosure• EMF measurement (Gs) 15 cm away from sourceVibration test enclosure• Three vibration signals were selected to test: 1.100 ms, 10 Hz tone burst; 2.100 ms, 50 Hz tone burst3.10 ms, 50 Hz half sign impulseMethods Continued…• Trials conducted at night and lasted one hour (20 min pre-exposure, exposure, and post-exposure observation periods)• Vibration tests used 15 eels/trial, and there were three trials per stimulus• EMF tests used 10 eels/trial over three trials• Both tests also included three control trials Center-of-School ApproachSTIMULUSSTIMULUSAvoidance AttractionResults - EMFResults - EMFResults - VibrationResults - Vibration• Vibration exposed eels showed significant displacement in both the 100 ms‐10‐Hz and 100 ms‐50‐Hz tone treatments• A weaker response to the 10 ms‐50‐Hz half sine impulse treatment100 ms‐10‐Hz tone 100 ms‐50‐Hz tone 10 ms‐50‐Hz half sine impulseSummary• No avoidance behavior was observed during EMF exposure trials• Vibration trials demonstrated avoidance, particularly for two tone burst signals (100 ms pulse duration at 10 and 50 Hz, respectively)• Next step for EPRC – a vibration white paper to hopefully direct a larger scale field trialAcknowledgments and QuestionsEel Passage Research Center Steering CommitteeAlden Research Laboratory, Inc.

Pushing and Pulling I: Can Vibration or Electromagnetic Fields Guide Downstream Migrating Silver Eels?

https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=2107&context=fishpassage_conference

Pushing and Pulling I: Can Vibration or Electromagnetic Fields Guide Downstream Migrating Silver Eels?

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