Acoustic detections of singing humpback whales in deep waters off the British Isles
Acoustic detections of singing humpback whales in deep waters off the British Isles
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DOI：
10.1111/j.1748-7692.2001.tb01297.x
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发表时间：
2001-10-01
影响因子：
2.3
通讯作者：
Clark, CW
中科院分区：
文献类型：
--
作者：
Charif, RA;Clapham, PJ;Clark, CW
从1996年10月到1998年9月，我们使用底部安装的水听器阵列来监测不列颠群岛北部和西部的深水区域的座头鲸（Megaptera novaeangliae）的歌声。从10月到3月，从设得兰-法罗群岛南部到英吉利海峡以西的水域，不断发现会唱歌的座头鲸。在此期间，鸣声探测的时间和地理模式以及个别裂鲸的运动表现出西南方向的趋势，但在4月至9月之间没有相应的北向趋势。这些结果，加上对该地区历史数据的回顾，表明不列颠群岛的近海水域是座头鲸的迁徙通道，至少其中一些座头鲸夏天会在挪威（可能还有冰岛东部）水域迁徙。被发现的鲸鱼的迁徙目的地尚不清楚，但有限的数据表明，这些鲸鱼主要是前往西印度群岛，而不是非洲西北海岸的历史繁殖区。三月初到中旬在英国水域发现的座头鲸可能不会完全迁移到热带地区。这些数据提供了进一步的证据，表明歌唱并不局限于冬季的热带水域，甚至在高纬度地区的迁徙中也普遍存在。
From October 1996 through September 1998, we used bottom-mounted hydrophone arrays to monitor deep-water areas north and west of the British Isles for songs of humpback whales (Megaptera novaeangliae). Singing humpbacks were consistently detected between October and March from the Shetland-Faroe Islands south to waters west of the English Channel. Temporal and geographic patterns of song detections, and movements of individually cracked whales, exhibited a southwesterly trend over this period, but with no corresponding northward trend between April and September. These results, together with a review of historical data from this area, suggest that the offshore waters of the British Isles represent a migration corridor for humpbacks, at least some of which summer in Norwegian (and possibly eastern Icelandic) waters. The migratory destination of the detected animals remains unknown, but the limited data suggest that these whales are bound primarily for the West Indies rather than historical breeding areas off the northwestern coast of Africa. Humpbacks detected in British waters after early to mid-March probably do not undertake a full migration to the tropics. These data provide further evidence that singing is not confined to tropical waters in winter, but occurs commonly on migration even in high latitudes.