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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/9125

Title: 綠蠵龜之產後迴游及潛水行為與洋流間關係之探討(V)
Relationship between Current and Post-Nesting Migration and Diving Behavior of Green Turtle (V)
Authors: 程一駿;王玉懷
Contributors: NTOU:Institute of Marine Biology
Keywords: 赤蠵龜;定置網漁業;混獲;洄游追蹤;潛水行為
loggerhead turtle;set net fisheries;by-catchment;satellite tracking;diving behavior
Date: 2010-08
Issue Date: 2011-06-28T07:02:36Z
Publisher: 行政院國家科學委員會
Abstract: Abstract:The results of satellite telemetry since 1994 showed that, the foraging grounds of green turtles that nest atWan-An Island, Penghu County are widely distributed on the continental shelves east of mainland China. These areas contain many coral reefs and seagrass beds. The Taiwan Straits also plays an important role in the migration and foraging activities of sea turtle. Even the green turtles that nest at Lanyu Tao of Taitung County, some of them will migrate vie the Straits to their final foraging ground—Southern PenghuWaters. Others migrated to the coastal waters of Okinawa, Northern Lutz Island, and Palawan Islands. The green turtles nest at Taipin Tao of South China Sea. Most of their foraging grounds are located on the coral reefs and seagrass bed along the coasts of Palawan Island, Philippine and western Malaysia, which locates Southeast of this basin. Studies in recent years showed that, the migration speed and direction of sea turtle in the open ocean can be influenced by the geomagnetic intensity and inclination, surface currents and eddies. The diving pattern will be different based on the prey behavior in different ocean. Although this study has found part of the evidences, the relationship between the surface currents and the migration behavior of sea turtles is still largely unknown. The diving behavior of the post-nesting migrations of green turtle nest atWan-an Island is also unknown. Thus, the purpose of this study is to analyze the data obtained from the satellite telemetry together with the hydrodynamic models obtained from the physical oceanography to determine their relationships in different depth.We can also determine to what extent the current does influence the swimming velocity of sea turtles swim in the open ocean, and to what extent the sea turtles can swim at their will. This is very important to the physiological energy expenditure of sea turtles. Sea turtles will not initiate their nesting migrations unless they consume enough energy. This study will enable use to understand, in detail, the relationship between the surface current and post-nesting migration behavior of sea turtles.
Relation: NSC99-2611-M019-010
URI: http://ntour.ntou.edu.tw/ir/handle/987654321/9125
Appears in Collections:[海洋生物研究所] 研究計畫

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