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首页> 外文期刊>Polar biology >Marine mammal and seabird summer distribution and abundance in the fjords of northeast Cumberland Sound of Baffin Island, Nunavut, Canada
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Marine mammal and seabird summer distribution and abundance in the fjords of northeast Cumberland Sound of Baffin Island, Nunavut, Canada

机译：加拿大努纳武特巴芬岛东北部坎伯兰峡湾东北部峡湾的海洋哺乳动物和海鸟夏季分布和丰富度

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摘要

Critical baseline population knowledge is required to properly assess the status of marine mammal and bird populations in the Canadian Arctic and the effects of climate trends on them. To address this need for one significant Arctic region, a boat-based marine mammal and seabird transect survey was conducted in Cumberland Sound fjords during summer 2008. During 173 km effort (20 h), 959 birds were recorded representing at least nine species which were dominated by Common Eiders (Somateria mollissima borealis), Iceland or Glaucous Gulls (Larus glaucoides or Larus hyperboreus), and Black Guillemots (Cepphus grylle), in addition to less common birds including Red-throated and Common Loons (Gavia stellata and Gavia immer), Northern Fulmars (Fulmarus glacialis), and Great or Lesser Black-backed Gulls (Larus marinus or Larus fuscus). Of these, 480 birds were observed on the water in one event consisting of eiders and gulls which may have biased encounter rates. Of 101 marine mammal sightings, four species were represented: 73 harp seals (Pagophilus groenlandicus), 13 beluga whales (Delphinapterus leucas), nine bowhead whales (Balaena mysticetus), five ringed seals (Pusa hispida), and one unidentified pinniped. A pod of four killer whales (Orcinus orca) was observed off-effort in Pangnirtung Fjord during the survey period. This pilot study provided the first estimates of relative abundance for marine mammals and seabirds in the study area to aid in developing future surveys.
机译：需要关键的基线种群知识，才能正确评估加拿大北极地区海洋哺乳动物和鸟类的状况以及气候趋势对其的影响。为了满足对一个重要的北极地区的需求，2008年夏季在坎伯兰峡湾进行了船基海洋哺乳动物和海鸟横断面调查。在173公里的历时（20小时）中，记录到959鸟，代表至少9种。除少见的鸟类（包括红喉和常见的懒人（Gavia stellata和Gavia immer））外，以常见的绒鸭（Somateria mollissimaboalis），冰岛或白鸥（Larus glaucoides或Larus hyperboreus）和黑海雀（Cepphus grylle）为主。 ，北海ul（Fulmarus glacialis）和大黑海鸥（Larus marinus或Larus fuscus）。其中，在水面上观察到480只鸟，其中包括绒毛和海鸥，它们的相遇率可能有偏差。在发现的101种海洋哺乳动物中，有4种：代表性的有73种竖琴海豹（Pagophilus groenlandicus），13种白鲸（Delphinapterus leucas），9条弓头鲸（Balaena mysticetus），5条环状海豹（Pusa hispida）和1个未识别的pin鱼。在调查期间，在Pangnirtung峡湾发现了四只虎鲸的荚果。这项初步研究提供了研究区内海洋哺乳动物和海鸟相对丰度的初步估计，以帮助开展未来的调查。

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