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Observations of long-finned pilot whale (Globicephala melas) calves less than one year old, including neonates and a very recently born calf, in northern Norway
Polar Research ( IF 1.9 ) Pub Date : 2023-09-28 , DOI: 10.33265/polar.v42.8027
Seán A. O’Callaghan

Long-finned pilot whales (Globicephala melas) are a widespread, highly social deep-diving cetacean species ranging from the sub-tropics to the High Arctic. Information on this species’ life history at higher latitudes is limited. Opportunistic observations of pilot whale calves were made in the spring and summer of 2020, summer of 2022 and spring of 2023 from commercial whale-watching boat trips out of Andenes, on Andøya, about 300 km north of the Arctic Circle, in northern Norway. Eighteen observations were made of long-finned pilot whale groups where 14 neonates and 32 other calves less than one year old were present. Additionally, a neonate with deep foetal folds and a folded-over dorsal fin, indicating very recent birth, was observed within Bleik Canyon on 21 June 2020.



中文翻译:

在挪威北部观察长鳍领航鲸 (Globicephala melas) 不到一岁的幼崽,包括新生儿和刚出生的幼崽

长鳍领航鲸(Globicephala melas)是一种分布广泛、高度群居的深潜鲸目动物,分布范围从亚热带到高北极地区。有关该物种在高纬度地区生活史的信息有限。2020 年春季和夏季、2022 年夏季和 2023 年春季,商业观鲸船从位于挪威北部北极圈以北约 300 公里的安岛安德内斯出发,对领航鲸幼崽进行了机会性观察。对长鳍领航鲸群进行了 18 次观察,其中有 14 只新生鲸鱼和 32 只不到一岁的小鲸鱼。此外,2020 年 6 月 21 日在布莱克峡谷内观察到一名新生儿,其胎儿褶皱很深,背鳍折叠,表明是最近出生的。

更新日期:2023-09-29
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