This paper contributes to documenting a change in the distribution of North Atlantic right whales Eubalaena glacialis (NARWs) that occurred in the 2010s, when the whales largely abandoned their traditional summering grounds in the Gulf of Maine/Bay of Fundy/Scotian shelf. Data from a year-round passive acoustic monitoring (PAM) network in the Gulf of St. Lawrence were exploited to build the time series of NARW incursions into this inland sea of the Northwest Atlantic, from June 2010 to November 2018. NARWs visited the southern Gulf of St. Lawrence every year from June to January, until ice freeze-up. The earliest detections were made at the end of April and the latest in mid-January. Call occurrence peaked between August and the end of October. NARW contact calls were not detected at the most upstream station at Les Escoumins, in the Lower St. Lawrence estuary, or at the northeastern connection of Belle Isle Strait with the Atlantic, which was monitored from November 2010 to November 2011. The mean daily occurrence of NARWs in the feeding grounds off Gaspé quadrupled after 2015 compared to 2011−2014. Long-term continuous PAM data provided invaluable information to document this marine mammal distribution shift.

中文翻译：

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根据长期被动声学监测，北大西洋露脊鲸于 2015 年转移到圣劳伦斯湾

本文有助于记录 2010 年代发生的北大西洋露脊鲸 (NARW) 分布的变化，当时鲸鱼在很大程度上放弃了缅因湾/芬迪湾/苏格兰大陆架的传统避暑地。利用圣劳伦斯湾全年无源声学监测 (PAM) 网络的数据，构建了 2010 年 6 月至 2018 年 11 月 NARW 入侵西北大西洋内陆海的时间序列。圣劳伦斯湾每年 6 月至 1 月，直到冰冻。最早的检测是在 4 月底，最晚在 1 月中旬。呼叫发生在 8 月和 10 月底之间达到高峰。在下圣路易斯的 Les Escoumins 的最上游车站未检测到 NARW 联系电话。劳伦斯河口，或贝尔岛海峡与大西洋的东北连接处，2010 年 11 月至 2011 年 11 月期间对其进行了监测。与 2011-2014 年相比，2015 年之后，加斯佩附近觅食场中 NARW 的平均每日发生率翻了两番。长期连续的 PAM 数据为记录这种海洋哺乳动物分布变化提供了宝贵的信息。