气候变化领域集成服务门户(CCPortal): At surface behaviour, dive depth and dive duration and associated hydrographic data of adult male southern elephant seals from King George Island from expedition JUB2010 with links to datasets

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.821555
	At surface behaviour, dive depth and dive duration and associated hydrographic data of adult male southern elephant seals from King George Island from expedition JUB2010 with links to datasets
	McIntyre; Trevor; Bornemann; Horst; de Bruyn; P J Nico; Reisinger; Ryan R; Steinhage; Daniel; Márquez; María Elba Isabel; Bester; Marthán N; Plötz; Joachim
发布日期	2014-09-03
数据集类型	dataset
英文简介	Understanding the distribution and foraging ecology of major consumers within pelagic systems, specifically in relation to physical parameters, can be important for the management of bentho-pelagic systems undergoing rapid change associated with global climate change and other anthropogenic disturbances such as fishing (i.e., the Antarctic Peninsula and Scotia Sea). We tracked 11 adult male southern elephant seals (Mirounga leonina), during their five-month post-moult foraging migrations from King George Island (Isla 25 de Mayo), northern Antarctic Peninsula, using tags capable of recording and transmitting behavioural data and in situ temperature and salinity data. Seals foraged mostly within the Weddell-Scotia Confluence, while a few foraged along the western Antarctic Peninsula shelf of the Bellingshausen Sea. Mixed model outputs suggest that the at-sea behaviour of seals was associated with a number of environmental parameters, especially seafloor depth, sea-ice concentrations and the temperature structure of the water column. Seals increased dive bottom times and travelled at slower speeds in shallower areas and areas with increased sea-ice concentrations. Changes in dive depth and durations, as well as relative amount of time spent during the bottom phases of dives, were observed in relation to differences in overall temperature gradient, likely as a response to vertical changes in prey distribution associated with temperature stratification in the water column. Our results illustrate the likely complex influences of bathymetry, hydrography and sea ice on the behaviour of male southern elephant seals in a changing environment and highlight the need for region-specific approaches to studying environmental influences on behaviour.
空间范围	Median Latitude: -61.433860 * Median Longitude: -54.044553 * South-bound Latitude: -72.516000 * West-bound Longitude: -102.611000 * North-bound Latitude: -52.562000 * East-bound Longitude: 3.015000
时间范围	2010-03-18T18:08:46 - 2011-03-26T02:14:30
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215520
推荐引用方式 GB/T 7714	McIntyre,Trevor,Bornemann,et al. At surface behaviour, dive depth and dive duration and associated hydrographic data of adult male southern elephant seals from King George Island from expedition JUB2010 with links to datasets.2014-09-03.https://doi.org/10.1594/PANGAEA.821555.