气候变化领域集成服务门户(CCPortal): Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea

CCPortal

DOI	10.1098/rsos.230233
	Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea
	Asvestad, Linn; Ahonen, Heidi; Menze, Sebastian; Lowther, Andrew; Lindstrom, Ulf; Krafft, Bjorn A.
发表日期	2024
ISSN	2054-5703
起始页码	11
结束页码	1
卷号	11 期号:1
英文摘要	Increased knowledge about marine mammal seasonal distribution and species assemblage from the South Orkney Islands waters is needed for the development of management regulations of the commercial fishery for Antarctic krill (Euphausia superba) in this region. Passive acoustic monitoring (PAM) data were collected during the autumn and winter seasons in two consecutive years (2016, 2017), which represented highly contrasting environmental conditions due to the 2016 El Nino event. We explored differences in seasonal patterns in marine mammal acoustic presence between the two years in context of environmental cues and climate variability. Acoustic signals from five baleen whale species, two pinniped species and odontocete species were detected and separated into guilds. Although species diversity remained stable over time, the ice-avoiding and ice-affiliated species dominated before and after the onset of winter, respectively, and thus demonstrating a shift in guild composition related to season. Herein, we provide novel information about local marine mammal species diversity, community structure and residency times in a krill hotspot. Our study also demonstrates the utility of PAM data and its usefulness in providing new insights into the marine mammal habitat use and responses to environmental conditions, which are essential knowledge for the future development of a sustainable fishery management in a changing ecosystem.
英文关键词	marine mammals; species composition; biodiversity; passive acoustic monitoring; vocalization; Scotia Sea
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001142485500006
来源期刊	ROYAL SOCIETY OPEN SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297228
作者单位	Institute of Marine Research - Norway; Norwegian Polar Institute; UiT The Arctic University of Tromso; Institute of Marine Research - Norway
推荐引用方式 GB/T 7714	Asvestad, Linn,Ahonen, Heidi,Menze, Sebastian,et al. Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea[J],2024,11(1).
APA	Asvestad, Linn,Ahonen, Heidi,Menze, Sebastian,Lowther, Andrew,Lindstrom, Ulf,&Krafft, Bjorn A..(2024).Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea.ROYAL SOCIETY OPEN SCIENCE,11(1).
MLA	Asvestad, Linn,et al."Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea".ROYAL SOCIETY OPEN SCIENCE 11.1(2024).