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2014/10/07 14:00 Associate Prof. Yu-Huai Wang（Department of Oceanography, NSYSU）
Seminar
Poster： ╱ Post date：2014-10-02NCU IHOS Seminar Announcemnet
Speaker：Associate Prof. Yu-Huai Wang
Place：S-325, Science Building 1
Abstract：
Title：The swimming behavior of post-nesting migration sea turtles in Kuroshio
Speaker：Associate Prof. Yu-Huai Wang
Department of Oceanography, NSYSU
Time：10/07（Tue.）14：00
Place：S-325, Science Building 1
Abstract：
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.
Last modification time：2014-10-07 PM 1:50
