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首页> 外文期刊>ICES Journal of Marine Science >Killer whale presence in relation to naval sonar activity and prey abundance in northern Norway
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Killer whale presence in relation to naval sonar activity and prey abundance in northern Norway

机译：挪威北部与虎鲸声纳活动和猎物丰富有关的虎鲸的存在

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In this study, retrospective data on naval sonar activity and prey abundance were correlated with killer whale sightings within a fjord basin in northern Norway. In addition, passive acoustic and visual marine mammal surveys were conducted before, during, and after a specific navy exercise in 2006. Herring abundance was the main factor affecting killer whale presence. Naval sonar, either operational navy sonar exercises (Flotex) or experimental sonar activity (CEE) alone, did not explain killer whale occurrence. However, naval sonar activity during a period of low prey availability seemed to have had a negative effect on killer whale presence. We conclude that the level of reaction to sonar can be influenced by multiple factors, including availability of prey.
机译：在这项研究中，有关海军声纳活动和猎物丰富度的回​​顾性数据与挪威北部峡湾盆地内的虎鲸目击事件相关。此外，在2006年特定的海军演习之前，之中和之后，进行了被动的声学和视觉海洋哺乳动物调查。鲱鱼的丰度是影响虎鲸存在的主要因素。海军声纳，无论是海军海军声纳演习（Flotex）还是实验性声纳活动（CEE），都无法解释虎鲸的发生。但是，在猎物利用率低的时期，海军声纳活动似乎对虎鲸的存在产生了负面影响。我们得出结论，对声纳的反应水平可能受多种因素影响，包括猎物的可用性。

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