期刊
JOURNAL OF MARINE SCIENCE AND TECHNOLOGY
卷 27, 期 1, 页码 541-548出版社
SPRINGER JAPAN KK
DOI: 10.1007/s00773-021-00850-w
关键词
Marine renewable energy; Tidal current; Fish; Collision risk; Water tank experiment
资金
- Japan Society of Naval Architects and Ocean Engineers
A study used a laboratory-scale water tank to monitor fine-scale fish behavior near rotating turbine blades, finding that fish are more alert in dark conditions possibly due to the inability to visually detect the blades; most fish actively avoid turbines in bright conditions. No striking events occurred causing injury or mortality.
Understanding the risk of collision between tidal stream turbines and marine species is required for environmental impact assessment. Field observations are often limited by sensor capabilities. This study used a laboratory-scale water tank to monitor fine-scale fish behavior near a model of rotating turbine blades. Differences in behavior between three species were investigated: Oryzias latipes, Gnathopogon elongatus, and Rhodeus ocellatus ocellatus. Behavioral response under dark conditions was further investigated for Gnathopogon elongatus, as it showed active behavior near the turbine under bright conditions. 71% of fish actively avoided or swam away from the turbine during bright conditions. Under dark conditions, 92% avoided or swam away; fish approached less frequently and retreated sooner than in bright conditions. Alertness in dark conditions possibly increases due to the inability of fish to visually detect the blades; thus, dark conditions may not be directly linked to a higher collision risk. No striking events occurred which resulted in injury or mortality.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据