ABSTRACT: Environmental change and increasing levels of human activity are threats to marine mammals in the Arctic. Identifying marine mammal hotspots and areas of high species richness are essential to help guide management and conservation efforts. Herein, space use based on biotelemetric tracking devices deployed on 13 species (ringed seal Pusa hispida, bearded seal Erignathus barbatus, harbour seal Phoca vitulina, walrus Odobenus rosmarus, harp seal Pagophilus groenlandicus, hooded seal Cystophora cristata, polar bear Ursus maritimus, bowhead whale Balaena mysticetus, narwhal Monodon monoceros, white whale Delphinapterus leucas, blue whale Balaenoptera musculus, fin whale Balaenoptera physalus and humpback whale Megaptera novaeangliae; total = 585 individuals) in the Greenland and northern Barents Seas between 2005 and 2018 is reported. Getis-Ord G_i* hotspots were calculated for each species as well as all species combined, and areas of high species richness were identified for summer/autumn (Jun-Dec), winter/spring (Jan-May) and the entire year. The marginal ice zone (MIZ) of the Greenland Sea and northern Barents Sea, the waters surrounding the Svalbard Archipelago and a few Northeast Greenland coastal sites were identified as key marine mammal hotspots and areas of high species richness in this region. Individual hotspots identified areas important for most of the tagged animals, such as common resting, nursing, moulting and foraging areas. Location hotspots identified areas heavily used by segments of the tagged populations, including denning areas for polar bears and foraging areas. The hotspots identified herein are also important habitats for seabirds and fishes, and thus conservation and management measures targeting these regions would benefit multiple groups of Arctic animals.

中文翻译：

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格陵兰和巴伦支海的海洋哺乳动物热点

摘要：环境变化和人类活动的增加是对北极海洋哺乳动物的威胁。确定海洋哺乳动物热点和物种丰富度高的区域对于帮助指导管理和保护工作至关重要。在此，基于生物遥测跟踪设备的空间利用部署在13种物种上（环状海豹Pusa hispida，大胡子海豹Erignathus barbatus，海豹海豹Phoca vitulina，海象Odobenus rosmarus，竖琴海豹Pagophilus groenlandicus，带帽海豹Cystophora cristata，北极熊海狸Ursus maritimus，弓头鲸Balaena mysticetus，独角鲸斑节对虾麒麟白鲸Delphinapterus leucas，蓝鲸Balaenoptera musculus，鳍鲸Balaenoptera physalus和座头鲸Megaptera novaeangliae ; 据报道，2005年至2018年之间，格陵兰岛和北部巴伦支海共有585人）。G系数-ORD ģ_我*为每种物种以及所有物种组合计算热点，并确定了夏季/秋季（6月至12月），冬季/春季（1月至5月）和全年的物种丰富度高的区域。格陵兰海和巴伦支海北部的边缘冰区（MIZ），斯瓦尔巴特群岛周围的水域和格陵兰东北部的一些沿海地区被确定为该地区主要的海洋哺乳动物热点和物种丰富的地区。各个热点确定了对大多数带标签动物重要的区域，例如常见的休息，护理，换羽和觅食区域。位置热点区确定了被标记人群的各个部分频繁使用的区域，包括北极熊的觅食区和觅食区。这里确定的热点也是海鸟和鱼类的重要栖息地，