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首页> 外文期刊>ICES Journal of Marine Science >Spatiotemporal analyses of tracking data reveal fine-scale, daily cycles in seabird-fisheries interactions
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Spatiotemporal analyses of tracking data reveal fine-scale, daily cycles in seabird-fisheries interactions

机译：跟踪数据的时空分析显示了海鸟渔业交互中的细尺，日常循环

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摘要

Human fisheries provide scavengers with abundant and predictable feeding opportunities that may schedule their behavioural patterns. Using miniaturized global positioning system (GPS) tracking technology, we evaluated how Audouin's gull (Ichthyaetus audouinii), a Mediterranean endemic seabird that makes extensive use of feeding opportunities provided by fisheries, co-occurred (i.e. presumably interacted) with the most important fishing fleets operating off the NE Iberian Peninsula (i.e. diurnal trawlers and nocturnal purse seiners), both in space and time. Results showed that individuals were able to adapt their distribution and activity patterns to the scheduled routines of these fisheries. Waveform analyses based on co-occurring positions revealed that most interactions with trawlers occurred during the afternoon (16:00h GMT +1) when discarding occurs as vessels return to port. In contrast, gull-purse seiner interactions largely occurred at night (between 02:00 and 04:00h) coinciding with the setting and hauling of the nets. Moreover, we found an individual component in seabird-fishery interactions, showing that there may be differential use of fisheries by individuals within the population. In addition to implications for our understanding of the behavioural ecology of this species, these results may have important management implications, particularly under the current European Union Common Fisheries Policy scenario of largely restricting discards.u
机译：人类的渔业提供了具有丰富和可预测的喂养机会的清除剂，可以安排其行为模式。使用小型化的全球定位系统（GPS）跟踪技术，我们评估了Audouin的鸥（ICHThyaetus Audouinii），这是一种大量使用渔业提供的喂养机会的地中海特有的海鸟，共同发生（即可能是互动）最重要的渔船在空间和时间内，从NE IBERIAN半岛（即昼夜拖网渔船和夜间钱包）运行。结果表明，个人能够将其分销和活动模式调整到这些渔业的预定惯例。基于共发生位置的波形分析显示，当丢弃端口时，丢弃时，在午后（16：00hgnt +1）期间发生与拖网渔船的大多数相互作用。相比之下，鸥 - 钱包塞门兰相互作用在很大程度上发生在夜间（02:00至04：00h之间）与网的设置和拖拉重合。此外，我们发现了海鸟渔业相互作用中的个体组成部分，表明人口中的个体可能会有渔业的差异使用。除了对我们对此物种的行为生态学的理解的影响外，这些结果可能具有重要的管理意义，特别是在目前欧盟共同渔业政策情景的主要原因限制丢弃.U

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  • 来源
    《ICES Journal of Marine Science》 |2020年第8期|2508-2517|共10页
  • 作者

    Ouled-Cheikh Jazel; Sanpera Carola; Becares Juan; Manuel Arcos Jose; Lluis Carrasco Josep; Ramirez Francisco;

  • 作者单位

    Univ Barcelona Dept Biol Evolut Ecol & Ciencies Ambientals Barcelona Spain;

    Univ Barcelona Dept Biol Evolut Ecol & Ciencies Ambientals Barcelona Spain|Univ Barcelona IRBio UB Inst Recerca Biodiversitat Barcelona Spain;

    SEO BirdLife Delegacio Catalunya Programa Marino Barcelona Spain|Corys Invest & Conservac Biodiversidad Carrer Maladeta 22 Barcelona 08016 Spain;

    Univ Barcelona Dept Biol Evolut Ecol & Ciencies Ambientals Barcelona Spain|SEO BirdLife Delegacio Catalunya Programa Marino Barcelona Spain;

    Univ Barcelona Fac Med Dept Renewable Marine Resources Dept Fonaments Clin Bioestadist Barcelona Spain;

    Univ Barcelona Dept Biol Evolut Ecol & Ciencies Ambientals Barcelona Spain|Univ Barcelona IRBio UB Inst Recerca Biodiversitat Barcelona Spain|CSIC Inst Ciencies Mar ICM Passeig Maritim Barceloneta 37-49 E-08003 Barcelona Spain;

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  • 正文语种 eng
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  • 关键词

    discards; fisheries; gulls; interaction; Mediterranean;

    机译：丢弃;渔业;鸥;互动;地中海;

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