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首页> 外文期刊>Marine biology >Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean
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Influence of oceanic factors on long-distance movements of loggerhead sea turtles displaced in the southwest Indian Ocean

机译：海洋因素对印度洋西南部流离失所的海龟远距离运动的影响

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摘要

The routes of five satellite-tracked loggerhead turtles (Caretta caretta), subjected to an experimental translocation away from their usual migratory routes, have been analysed in relation to the concurrent oceanographic conditions. Remote sensing data on sea surface temperature and height anomalies, as well as trajectories of surface drifters were used, to get simultaneous information on the currents encountered by the turtles during their long-range oceanic movements. Turtles mostly turned out to move in the same direction as the main currents, and their routes were often influenced by circulation features they encountered. A comparison between turtle ground speeds with that of drifters shows that in several instances, the turtles did not drift passively with the currents but contributed actively to the overall movement. Two turtles embarked on an oceanic crossing, probably induced by seasonal changes in surface temperatures, a crossing that was largely determined by the main currents existing in the area.
机译：对五只卫星跟踪的龟（Caretta caretta）的路线进行了实验性移位，使其远离通常的迁徙路线，并与同时发生的海洋学条件进行了分析。利用有关海面温度和高度异常的遥感数据以及地表漂泊者的轨迹，可以获取有关海龟在远距离海洋运动中遇到的洋流的同时信息。事实证明，海龟的前进方向与主水流方向相同，并且它们的路线经常受到所遇到的环流特征的影响。乌龟的地面速度与流浪者的速度之间的比较表明，在某些情况下，乌龟并没有随潮流而被动地漂移，而是为整体运动做出了积极的贡献。两只海龟着陆于海洋上，这可能是由于地表温度的季节性变化引起的，这种横渡在很大程度上取决于该地区现有的主要水流。

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  • 来源
    《Marine biology》 |2010年第2期|339-349|共11页
  • 作者

    Resi Mencacci; Elisabetta De Bernardi; Alessandro Sale; Johann R. E. Lutjeharms; Paolo Luschi;

  • 作者单位

    Department of Biology, University of Pisa, Via A. Volta 6, 56126 Pisa, Italy;

    rnDepartment of Biology, University of Pisa, Via A. Volta 6, 56126 Pisa, Italy;

    rnInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56100 Pisa, Italy;

    rnDepartment of Oceanography, University of Cape Town, Rondebosch 7700, South Africa;

    rnDepartment of Biology, University of Pisa, Via A. Volta 6, 56126 Pisa, Italy;

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