Harbour porpoises exhibit localized evasion of a tidal turbine
Harbour porpoises exhibit localized evasion of a tidal turbine
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DOI：
10.1002/aqc.3660
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发表时间：
2021-07-08
影响因子：
2.4
通讯作者：
Hastie, Gordon
中科院分区：
文献类型：
--
作者：
Gillespie, Douglas;Palmer, Laura;Hastie, Gordon
潮汐能发电机与移动的涡轮机部件发生碰撞，有可能伤害或杀死海洋动物，包括小型鲸目动物。需要关于接近运行中的涡轮机的动物的精细尺度行为的信息，以告知监管机构这些新技术可能产生的影响。在2017年10月至2019年4月期间，利用12通道水听器阵列对潮汐涡轮机周围的港口江豚运动进行了451天的三维监测。来自344个海豚事件的回声定位点击被定位在靠近涡轮机的地方。数据显示，鼠海豚有效地避开了涡轮机转子，只有一只动物在转子静止时清楚地通过转子扫掠区域，而在旋转时没有动物通过。结果表明，潮汐涡轮机与江豚发生碰撞的风险较低，这对潮汐能产业的潜在效应和可持续发展具有重要意义。
Tidal energy generators have the potential to injure or kill marine animals, including small cetaceans, through collisions with moving turbine parts. Information on the fine scale behaviour of animals close to operational turbines is required to inform regulators of the likely impact of these new technologies. Harbour porpoise movements were monitored in three dimensions around a tidal turbine for 451 days between October 2017 and April 2019 with a 12-channel hydrophone array. Echolocation clicks from 344 porpoise events were localized close to the turbine. The data show that porpoises effectively avoid the turbine rotors, with only a single animal clearly passing through the rotor swept area while the rotors were stationary, and none passing through while rotating. The results indicate that the risk of collisions between the tidal turbine and porpoises is low; this has important implications for the potential effects and the sustainable development of the tidal energy industry.