Informing a Tidal Turbine Strike Probability Model through Characterization of Fish Behavioral Response using Multibeam Sonar Output

Bevelhimer, Mark S.¹  Colby, Jonathan²  Adonizio, Mary Ann²  Tomichek, Christine³  Scherelis, Constantin C.¹ 

[1]Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Environmental Sciences Division

[2]Verdant Power, Inc., New York, NY (United States)

[3]Kleinschmidt Associates, Pittsfield, ME (United States)

关键词: Marine energy;    hydroacoustics;    fish behavior;    turbine encounter;   

DOI  :  10.2172/1324172
RP-ID  :  ORNL/TM--2016/219
PID  :  OSTI ID: 1324172
Others  :  Other: WC0102000
Others  :  CEWW099

美国|英语

来源: SciTech Connect

【 摘 要 】

One of the most important biological questions facing the marine and hydrokinetic (MHK) energy industry is whether fish and marine mammals that encounter MHK devices are likely to be struck by moving components. For hydrokinetic (HK) devices, i.e., those that generate energy from flowing water, this concern is greatest for large organisms because their increased length increases the probability that they will be struck as they pass through the area of blade sweep and because their increased mass means that the force absorbed if struck is greater and potentially more damaging (Amaral et al. 2015). Key to answering this question is understanding whether aquatic organisms change their swimming behavior as they encounter a device in a way that decreases their likelihood of being struck and possibly injured by the device. Whether near-field or far-field behavior results in general avoidance of or attraction to HK devices is a significant factor in the possible risk of physical contact with rotating turbine blades (Cada and Bevelhimer 2011).