The Susceptibility of Juvenile American Shad to Rapid Decompression and Fluid Shear Exposure Associated with Simulated Hydroturbine Passage

Throughout many areas of their native range, American shad (Alosa sapidissima) and other Alosine populations are in decline. Though several conditions have influenced these declines, hydropower facilities have had significant negative effects on American shad populations. Hydropower facilities expos...

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Veröffentlicht in:Water (Basel) 2020-02, Vol.12 (2), p.586
Hauptverfasser: Pflugrath, Brett, Harnish, Ryan, Rhode, Briana, Engbrecht, Kristin, Beirão, Bernardo, Mueller, Robert, McCann, Erin, Stephenson, John, Colotelo, Alison
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container_end_page
container_issue 2
container_start_page 586
container_title Water (Basel)
container_volume 12
creator Pflugrath, Brett
Harnish, Ryan
Rhode, Briana
Engbrecht, Kristin
Beirão, Bernardo
Mueller, Robert
McCann, Erin
Stephenson, John
Colotelo, Alison
description Throughout many areas of their native range, American shad (Alosa sapidissima) and other Alosine populations are in decline. Though several conditions have influenced these declines, hydropower facilities have had significant negative effects on American shad populations. Hydropower facilities expose ocean-migrating American shad to physical stressors during passage through hydropower facilities, including strike, rapid decompression, and fluid shear. In this laboratory-based study, juvenile American shad were exposed separately to rapid decompression and fluid shear to determine their susceptibility to these stressors and develop dose–response models. These dose–response relationships can help guide the development and/or operation of hydropower turbines and facilities to reduce the negative effects to American shad. Relative to other species, juvenile American shad have a high susceptibility to both rapid decompression and fluid shear. Reducing or preventing exposure to these stressors at hydropower facilities may be a potential method to assist in the effort to restore American shad populations.
doi_str_mv 10.3390/w12020586
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source MDPI - Multidisciplinary Digital Publishing Institute; EZB Electronic Journals Library
subjects American shad
Design and construction
downstream fish passage
Environmental aspects
ENVIRONMENTAL SCIENCES
fluid shear
Hydraulic turbines
HYDRO ENERGY
hydropower
Mechanical properties
rapid decompression
turbine
title The Susceptibility of Juvenile American Shad to Rapid Decompression and Fluid Shear Exposure Associated with Simulated Hydroturbine Passage
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