Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales (Eubalaena glacialis) from 2004 to 2014.

Long-term passive acoustic recordings track the changing distribution of North Atlantic right whales (Eubalaena glacialis) from 2004 to 2014.
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DOI:
10.1038/s41598-017-13359-3
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发表时间:
2017-10-18
期刊:
影响因子:
4.6
通讯作者:
Van Parijs SM
Van Parijs SM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Davis GE;Baumgartner MF;Bonnell JM;Bell J;Berchok C;Bort Thornton J;Brault S;Buchanan G;Charif RA;Cholewiak D;Clark CW;Corkeron P;Delarue J;Dudzinski K;Hatch L;Hildebrand J;Hodge L;Klinck H;Kraus S;Martin B;Mellinger DK;Moors-Murphy H;Nieukirk S;Nowacek DP;Parks S;Read AJ;Rice AN;Risch D;Širović A;Soldevilla M;Stafford K;Stanistreet JE;Summers E;Todd S;Warde A;Van Parijs SM

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鉴于近年来濒危北大西洋露脊鲸(Eubalaena glacialis)种群的新分布模式,提高对该物种保护的时空运动的认识是必不可少的。虽然迄今为止,视觉数据提供了大部分关于NARW运动的信息,但为了更好地捕捉全年NARW的存在,本研究中使用了被动声学监测(PAM)。该项目使用了北大西洋西部19个组织从2004年到2014年收集的PAM数据。总体而言,使用分类和检测系统对324台记录仪(35,600天)的数据进行了处理和分析。结果显示,北大西洋西部几乎全年都在使用栖息地,在北卡罗来纳州哈特拉斯角水域的夏秋两季检测到的数量有所减少。2010年后收集的数据显示,NARW在大西洋中部地区的存在有所增加,而在缅因湾北部地区则有所减少。此外,NARWs在整个冬季广泛分布于大多数地区。这项研究表明,对PAM数据的大规模分析为理解和跟踪大型鲸鱼在长时间尺度上的运动变化提供了重要价值。
Given new distribution patterns of the endangered North Atlantic right whale (NARW; Eubalaena glacialis) population in recent years, an improved understanding of spatio-temporal movements are imperative for the conservation of this species. While so far visual data have provided most information on NARW movements, passive acoustic monitoring (PAM) was used in this study in order to better capture year-round NARW presence. This project used PAM data from 2004 to 2014 collected by 19 organizations throughout the western North Atlantic Ocean. Overall, data from 324 recorders (35,600 days) were processed and analyzed using a classification and detection system. Results highlight almost year-round habitat use of the western North Atlantic Ocean, with a decrease in detections in waters off Cape Hatteras, North Carolina in summer and fall. Data collected post 2010 showed an increased NARW presence in the mid-Atlantic region and a simultaneous decrease in the northern Gulf of Maine. In addition, NARWs were widely distributed across most regions throughout winter months. This study demonstrates that a large-scale analysis of PAM data provides significant value to understanding and tracking shifts in large whale movements over long time scales.
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