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103/10/07 14:00 中山大學海洋科學系王玉懷副教授 演講
演講公告
張貼人：網站管理員 ╱ 公告日期：2014-10-02演 講 公 告
主講人：王玉懷 副教授
地點：中央大學科學一館S-325教室
摘要：
講題：海龜在黑潮的產後洄游
主講人：王玉懷 副教授
中山大學海洋科學系
時間：10月07日（星期二）下午2點
地點：中央大學科學一館S-325教室
摘要：
Sea turtles are known as powerful swimmers. How do they behave when riding in Kuroshio during their migrations? In this study, three, satellite-tagged, post-nesting green turtles travelled from Lanyu Island, east of Taiwan, partly within the Kuroshio to their foraging sites approximately 1000 km away in the Ryukyu Archipelago. Their swimming behaviors were analyzed by comparing their migration velocities estimated from Argos tag data with ocean currents derived from a data simulation model and from AVISO advection estimates. Results suggest that the turtles take advantage of Kuroshio during the initial portion of their migration routes. They must then make a great effort to swim eastward toward their foraging sites to avoid being carried off course by the strong current. The cues that might cause the change in swimming direction were related to the ambient current and water temperature. This suggests that the eddies impinging on the Kuroshio may trigger the eastward swimming of turtles.
最後修改時間：2014-10-07 PM 1:50
