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首页> 外文期刊>Marine biology >Magnetic orientation by hatchling loggerhead sea turtles (Caretta caretta) from the Gulf of Mexico
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Magnetic orientation by hatchling loggerhead sea turtles (Caretta caretta) from the Gulf of Mexico

机译：由墨西哥湾孵出的海龟（Caretta caretta）进行磁性定向

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摘要

Loggerhead sea turtle hatchlings emerge from nests on either the east or west coast of the South Florida peninsula and then migrate offshore in opposite directions. Under laboratory conditions, magnetic cues induce east coast hatchlings to swim in directions that promote their transport by oceanic surface currents, such as the North Atlantic gyre. However, the surface currents used by west coast hatchlings are unknown. We examined the responses of west (Sarasota) hatchlings to magnetic cues in the Gulf of Mexico, the Florida Straits, and the Gulf Stream to determine their (1) likely migratory routes (2) orientation where currents lead into the Atlantic Ocean, and (3) orientation adjacent to Florida's east coast. The results suggest that migration inside Gulf waters may be circuitous, that the turtles respond appropriately to enter Atlantic waters, and that orientation along Florida's east coast probably promotes transport by the Gulf Stream into the North Atlantic gyre.
机译：ger海龟幼体从南佛罗里达半岛东海岸或西海岸的巢中出现，然后沿相反的方向向近海迁移。在实验室条件下，磁力提示会促使东海岸的孵化器朝着通过北洋回旋等海面洋流促进其运输的方向游泳。但是，西海岸孵化场使用的表面电流尚不清楚。我们检查了墨西哥湾，佛罗里达海峡和墨西哥湾流中西部（萨拉索塔）孵化场对磁提示的反应，以确定它们的（1）可能的迁徙路线（2）方向，其中电流引向大西洋，以及（ 3）邻近佛罗里达东海岸的方向。结果表明，海湾水域内的迁移可能是circuit回的，海龟对进入大西洋水域做出了适当的反应，佛罗里达州东海岸的定向可能会促进海湾流向北大西洋回旋区的运输。

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  • 来源
    《Marine biology》 |2011年第1期|p.101-112|共12页
  • 作者

    Maria W. Merrill; Michael Salmon;

  • 作者单位

    Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA,Florida Fish and Wildlife Conservation Commission, Tallahassee, FL 32399, USA;

    Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA;

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