Individual differences in diel and vertical activity patterns in a large pelagic predator, the oceanic whitetip shark
Individual differences in diel and vertical activity patterns in a large pelagic predator, the oceanic whitetip shark
复制标题
大型中上层捕食者远洋白鳍鲨昼夜和垂直活动模式的个体差异
DOI：
10.1007/s00227-022-04119-7
复制
发表时间：
2022
期刊：
影响因子：
2.4
通讯作者：
Watanabe Yuuki
中科院分区：
文献类型：
--
作者：
Papastamatiou Yannis P.;Leos-Barajas Vianey;Howey Lucy;Brooks Edd;Chapman Demian D.;Watanabe Yuuki
相对于沿海鱼类，对大型中上层鱼类的昼夜活动模式和细尺度行为的研究很少。特别是，很少有人知道捕食者的活动如何随一天中的时间和垂直栖息地的变化。测量活动的变化可能是具有挑战性的，因为这些动物连续游泳，因此传统的指标，如游泳深度和水平位置可能没有足够的分辨率。在这里，我们使用生物记录标签（速度/加速度/深度/温度/视频）和隐马尔可夫模型，以量化的海洋白鳍鲨，Carcharhinus longimanus，关闭猫岛，巴哈马群岛的行为。成功地从四条鲨鱼身上取回了生物记录标签，提供了总共9天的数据。鲨鱼在昼夜活动中表现出多种模式，有些个体在夜间更活跃，而另一些则在白天更活跃。鲨鱼进行连续的弹跳潜水，但很少游到深度> 200米，但同样存在个体行为差异，一些鲨鱼在潜水的顶点最活跃，而另一些则在浅水中更活跃。鲨鱼在潜水过程中下降时活动最少，但在上升时可能处于中等或高度活跃状态。上升行为状态的差异可能与盘旋和搜索行为有关。尽管样本量很小，但我们在鲨鱼最活跃的时间和深度方面表现出了大量的个体差异。
Diel activity patterns and fine-scale behavior of large pelagic fishes have been poorly studied relative to their coastal counterparts. In particular, little is known about how predator activity varies with time of day and vertical habitat. Measuring changes in activity can be challenging as these animals swim continuously so traditional metrics such as swimming depth and horizontal position may not be of sufficient resolution. Here, we use biologging tags (speed/acceleration/depth/temperature/video) and hidden Markov models, to quantify the behavior of oceanic whitetip sharks,Carcharhinus longimanus, off Cat Island, The Bahamas. Biologging tags were successfully retrieved from four sharks, providing a total of 9 days of data. Sharks showed a variety of patterns in diel activity, with some individuals more active at night while others were more active during the daytime. Sharks performed continuous bounce dives, but rarely swam to depths > 200 m, but again there was individual variability in behavior with some sharks most active at the apex of dives, while others were more active in shallower water. Sharks exerted minimal activity while descending during dives but could be in either a medium or high active state while ascending. Differences in ascent behavioral states may relate to circling and searching behavior. Despite a small sample size, we show a large amount of individual variability in terms of when sharks are most active and over which depths.
登录
查看更多内容
南大西洋黄鳍金枪鱼的行为生态学和可捕捞性：在正确的时间（和深度）的正确地点
影响因子：
5.2
作者：
Serena R Wright;D. Righton;Joachim Naulaerts;R. Schallert;Christopher A. Griffiths;T. Chapple;D. Madigan;V. Laptikhovsky;Victoria A. Bendall;R. Hobbs;D. Beare;Elizabeth Clingham;B. Block;M. Collins
通讯作者：
M. Collins
深度学习根据深度数据准确预测白鲨运动活动
影响因子：
2.7
作者：
Zac Yung;J. Moxley;P. Kanive;A. Gleiss;T. Maughan;L. Bird;O. J. Jewell;T. Chapple;Tyler O. Gagné;C. White;S. Jorgensen
通讯作者：
S. Jorgensen
影响因子：
3.3
作者：
Papastamatiou，Yannis P.;Mourier，Johann;Hoyos-Padilla，Mauricio
通讯作者：
Hoyos-Padilla，Mauricio
影响因子：
1.2
作者：
Towner, A., V;Watson, R. G. A.;Smale, M. J.
通讯作者：
Smale, M. J.
吸热白鲨在觅食过程中的游泳策略和能量学
DOI：
10.1242/jeb.185603
发表时间：
2019
期刊：
The Journal of Experimental Biology
影响因子：
--
作者：
Watanabe YY;Payne NL;Semmens JM;Fox A;Huveneers C
通讯作者：
Huveneers C