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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Humpback whale (Megaptera novaeangliae) post breeding dispersal and southward migration in the western Indian Ocean
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Humpback whale (Megaptera novaeangliae) post breeding dispersal and southward migration in the western Indian Ocean

机译：座头鲸（Megaptera novaeangliae）在印度洋西部繁殖繁殖后向南迁移

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摘要

Investigating movement patterns of marine migratory species is critical to understand habitat use and population structure, and help inform conservation and management planning. Little is known about humpback whale (Megaptera novaeangliae) dispersal and migration in the western Indian Ocean. In October 2011 and 2012, eleven satellite transmitters were deployed on wintering humpback whales from the south-western Indian Ocean breeding stock at the Comoros islands (Moheli, n = 6 and Mayotte, n = 5). Eight individuals were successfully tracked for 24.3 ± 12.4 days (range = 8-49 days) and travelled between 146 km and 5804 km in total. Whales either remained at their wintering site for several weeks (n = 3) or dispersed along the west coast (n = 4) or east (n = 1) coast of Madagascar where two main stop-over sites were identified. In addition, two individuals travelled along straight paths to distant, potential, foraging areas. One whale reached the French sub-Antarctic islands while the other travelled to one of the supposed Antarctic foraging areas for humpback whales of this breeding stock. This is the first time movements of humpback whales from this area are being described and their potential foraging areas in the Southern Ocean identified. Identification of these dispersal patterns is important for delineation of breeding regions and for allocating abundance estimates to stocks.
机译：调查海洋迁徙物种的运动方式对于了解栖息地的使用和种群结构，并有助于制定保护和管理计划至关重要。关于座头鲸（Megaptera novaeangliae）在印度洋西部的扩散和迁移知之甚少。 2011年10月和2012年10月，在科摩罗群岛（Moheli，n = 6和Mayotte，n = 5）的印度洋西南部繁殖种群的越冬座头鲸上部署了11个卫星发射机。成功追踪了8个人24.3±12.4天（范围= 8-49天），总共行驶了146 km至5804 km。鲸鱼要么在越冬地点呆了几个星期（n = 3），要么散布在马达加斯加的西海岸（n = 4）或东海岸（n = 1），在那里发现了两个主要的中转站。此外，有两个人沿着直线路径前往遥远的，潜在的觅食区。一只鲸鱼到达了法属南极群岛，另一只鲸鱼到了一个所谓的南极觅食区，以捕捞这种繁殖种群的座头鲸。这是第一次描述座头鲸从该区域的运动，并确定了它们在南大洋的潜在觅食区域。确定这些传播方式对于确定育种区域和为种群分配丰度估计很重要。

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