School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA.
J Fish Biol. 2009 May;74(7):1434-49. doi: 10.1111/j.1095-8649.2009.02209.x.
This study presents the first data on movement, habitat use and behaviour for yellowfin tuna Thunnus albacares in the Atlantic Basin. Six individuals were tracked in the Gulf of Mexico using pop-up satellite archival tags. Records up to 80 days in length were obtained, providing information on depth and temperature preferences as well as horizontal movements. Thunnus albacares in the Gulf of Mexico showed a strong preference for the mixed layer and thermocline, consistent with findings for this species in other ocean basins. Fish showed a diel pattern in depth distribution, remaining in surface and mixed layer waters at night and diving to deeper waters during the day. The vertical extent of T. albacares habitat appeared to be temperature limited, with fish generally avoiding waters that were >6 degrees C cooler than surface waters. The vertical and thermal habitat usage of T. albacares differs from that of bigeye Thunnus obesus and bluefin Thunnus thynnus, Thunnus orientalis and Thunnus maccoyii tunas. These results are consistent with the results of earlier studies conducted on T. albacares in other oceans.
本研究首次提供了大西洋盆地黄鳍金枪鱼 Thunnus albacares 的运动、栖息地利用和行为数据。使用弹出式卫星档案标签在墨西哥湾追踪了 6 条个体。获得了长达 80 天的记录，提供了有关深度和温度偏好以及水平运动的信息。墨西哥湾的黄鳍金枪鱼表现出对混合层和温跃层的强烈偏好，这与在其他海洋盆地发现的该物种的结果一致。鱼类在深度分布上呈现出昼夜节律模式，夜间留在水面和混合层水域，白天则潜到更深的水域。黄鳍金枪鱼栖息地的垂直范围似乎受到温度限制，鱼类通常避免比水面温度低 6 摄氏度以上的水域。黄鳍金枪鱼的垂直和热栖息地利用与大眼金枪鱼 Thunnus obesus 和蓝鳍金枪鱼 Thunnus thynnus、东方金枪鱼 Thunnus orientalis 和黄鳍金枪鱼 Thunnus maccoyii 不同。这些结果与在其他海洋中对黄鳍金枪鱼进行的早期研究结果一致。
