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Towards a downstream passage solution for out-migrating American eel (Anguilla rostrata) on the St. Lawrence River

Aquaculture and Fisheries 2021年第2期6卷 151-168页

作者： Thomas C.Pratt David R.Stanley Scott Schlueter Jake K.L.La Rose Andrew Weinstock Paul T.Jacobson Fisheries and Oceans Canada Great Lakes Laboratory for Fisheries and Aquatic Sciences1219 Queen Street EastSault Ste.MarieOntarioP6A 2E5Canada Ontario Power Generation Inc. Environment Division14000 Niagara ParkwayNiagara on the LakeOntarioL0S 1J0Canada United States Fish and Wildlife Service New York Field Office3817 Luker RoadCortlandNY13045USA Ontario Ministry of Natural Resources and Forestry Lake Ontario Management Unit41 Hatchery LanePictonOntarioK0K 2T0Canada New York Power Authority Environment Division123 Main StWhite PlainsNY10601USA Electric Power Research Institute 3420 Hillview AvenuePalo AltoCA94304USA

There is a need to develop safe and effective downstream passage for diadromous anguillid eels on large rivers,where the combination of physical screening and bypass structures that is used to protect eel on smaller rivers is *** Eel Passage Research Center was established in 2013 to address the challenge of providing safe passage for out-migrating silver-stage American eel(Anguilla rostrata)on the *** River,the outflow of the Laurentian Great Lakes,which is spanned by two large,mainstem hydroelectric generating *** Center’s goal is to develop the technology to behaviorally guide eel to a collection point for capture and transfer around the two generating *** achieve this goal,three parallel initiatives were undertaken;1)research into behavioral guidance techniques suitable for guiding out-migrating eel on large,high flow rivers,2)the evaluation of sonar technologies for detection of eel,necessary for assessing in situ guidance,and 3)the commissioning of literature reviews for the most promising guidance technologies.A number of behavioral guidance stimuli,including electricity,flow,sound and electromagnetic fields were examined in laboratory and flume settings for their utility in guiding out-migrating silver-stage *** the techniques examined,only sound showed any promise for *** sonar technologies(Simrad 120 kHz EK60 echosounder,Sound Metrics ARIS Explorer 1800 sonar,and the Kongsberg Mesotech 500 kHz M3 multi-mode multibeam sonar)were evaluated to determine if existing acoustic technologies could be used to estimate the relative abundance and distribution of out-migrating silver-phase American eel in the *** *** the ARIS unit could successfully identify eel targets,and only over a short(<15 m)*** immense volume of sonar data accumulated over a portion of a single outmigration season contributed to the successful development of machine learning tools to automate the identification of American e

关键词： American eel Downstream passage behavioral guidance Light diversion

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