High-density areas for harbor porpoises (Phocoena phocoena) identified by satellite tracking
High-density areas for harbor porpoises (Phocoena phocoena) identified by satellite tracking
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卫星追踪发现港湾鼠海豚（Phocoena phocoena）高密度区域
DOI：
10.1111/j.1748-7692.2010.00379.x
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发表时间：
2011
影响因子：
2.3
通讯作者：
U. Siebert
中科院分区：
文献类型：
--
作者：
S. Sveegaard;J. Teilmann;J. Tougaard;R. Dietz;K. Mouritsen;G. Desportes;U. Siebert
近年来，港口鼠海豚的种群状况一直受到关注，并建议建立海洋保护区（MPAs）作为保护港口鼠海豚（Phocoena phocoena，Linneaus 1758）和其他小型鲸目动物的方法。为了指定海洋保护区，必须确定物种的高密度区域。小型鲸目动物的空间分布通常通过船舶或航空调查进行评估。作为一个潜在的更准确的替代方案，本研究探讨了64港鼠海豚，卫星标记1997年至2007年之间的运动和区域偏好，以确定在北海，波罗的海西部，和之间的沃茨的分布。结果表明，港湾江豚的分布并不均匀，而是集中在研究区域内的9个高密度区。其中几个地区的季节变化很大。研究发现，雄性和雌性的家域大小没有差异，但未成熟的港湾鼠海豚比成熟的鼠海豚有更大的家域。在划定海洋保护区时，利用卫星遥测技术确定港口海豚密度高的地区可能至关重要。
The population status of harbor porpoises has been of concern for several years, and the establishment of Marine Protected Areas (MPAs) has been suggested as a method to protect the harbor porpoise (Phocoena phocoena, Linneaus 1758) and other small cetaceans. In order to designate MPAs, high-density areas for the species must be identified. Spatial distribution of small cetaceans is usually assessed from ship or aerial surveys. As a potentially more accurate alternative, this study examined the movements and area preferences of 64 harbor porpoises, satellite tagged between 1997 and 2007, in order to determine the distribution in the North Sea, the western Baltic, and the waters in between. Results show that harbor porpoises are not evenly distributed, but congregate in nine high-density areas within the study area. Several of these areas are subject to significant seasonal variation. The study found no differences in the home range size of males and females, but immature harbor porpoises have larger home ranges than mature porpoises. The use of satellite telemetry for identifying areas of high harbor porpoise density can be of key importance when designating MPAs.