Movements of whale sharks (Rhincodon typus) tagged at Ningaloo Reef, Western Australia
Movements of whale sharks (Rhincodon typus) tagged at Ningaloo Reef, Western Australia
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西澳大利亚宁加洛珊瑚礁标记的鲸鲨（Rhincodontypus）的活动
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Meekan
中科院分区：
文献类型：
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作者：
S. Wilson;J. Polovina;B. Stewart;M. Meekan
鲸鲨（Rhincodon typus Smith）季节性聚集（3 - 6月），在西澳大利亚宁格鲁礁附近的沿海水域觅食。2003年5月初和2004年5月初，在该地点将弹出式档案标签贴在19只个体（总长度4.5-11.0米）上，以检查它们的水平和垂直运动。6条鲸鲨的长期活动模式被记录下来，它们都在离开宁格鲁礁后向东北方向进入印度洋。它们在近岸和近海都有栖息地，并进行了广泛的垂直运动，有时至少达到980米的深度。深度记录显示了频繁的上下运动、昼夜垂直迁移和黄昏下降。鲨鱼经历的环境温度在4.2到28.7摄氏度之间，潜水时遇到的温度梯度高达20.8摄氏度。
Whale sharks (Rhincodon typus Smith) aggregate seasonally (March–June) to feed in coastal waters off Ningaloo Reef, Western Australia. Pop-up archival tags were attached to 19 individuals (total lengths 4.5–11.0 m) at this location in early May of 2003 and 2004 to examine their horizontal and vertical movements. The long-term movement patterns of six whale sharks were documented, all of which travelled northeast into the Indian Ocean after departing Ningaloo Reef. They used both inshore and offshore habitats and made extensive vertical movements, occasionally to a depth of at least 980 m. Frequent up-and-down movements, diel vertical migration, and crepuscular descents were evident in the depth records. The sharks experienced ambient temperatures ranging between 4.2 and 28.7°C and encountered gradients of up to 20.8°C on dives.