globalchange  > 全球变化的国际研究计划
DOI: 10.3354/meps13011
WOS记录号: WOS:000485739800016
论文题名:
Environmental drivers of beluga whale Delphinapterus leucas habitat use in the Mackenzie Estuary, Northwest Territories, Canada
作者: Scharffenberg, K.1; Whalen, D.2; Marcoux, M.1,3; Iacozza, J.4; Davoren, G.1; Loseto, L.1,4
通讯作者: Scharffenberg, K.
刊名: MARINE ECOLOGY PROGRESS SERIES
ISSN: 0171-8630
EISSN: 1616-1599
出版年: 2019
卷: 626, 页码:209-226
语种: 英语
英文关键词: Passive acoustic monitoring ; Oceanography ; Estuarine ecology ; Arctic
WOS关键词: BEAUFORT SEA ; COOK INLET ; TRADITIONAL KNOWLEDGE ; SOLOVETSKII ISLAND ; RIVER DISCHARGE ; WHITE WHALES ; SUMMER ; VARIABLES ; BEHAVIOR ; IMPACTS
WOS学科分类: Ecology ; Marine & Freshwater Biology ; Oceanography
WOS研究方向: Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
英文摘要:

Understanding drivers of habitat use and selection of mobile species is critical for understanding the impacts of climate change and formulating management plans. Eastern Beaufort Sea beluga whales Delphinapterus leucas form large summering aggregations in the warm, fresh waters of the Mackenzie Estuary, Northwest Territories, Canada; however, the environmental factors driving spatial and temporal patterns of habitat use within the estuary are not fully understood. We used passive acoustic monitoring to record beluga presence during their summer aggregation (June-August) at known congregation areas and locations with unique oceanographic features in Kugmallit Bay in the Mackenzie River Estuary, while simultaneously recording environmental and oceanographic data. The effectiveness of hydrophones at determining beluga presence/absence was validated using shore-based observations. Multiple logistic regression was used to assess the influence of environmental conditions on presence/absence of belugas. Results indicate that temporal patterns of habitat use varied by location, and were influenced by environmental conditions such as temperature, salinity, and wind speed. Belugas did not frequent commonly used locations during periods with high-speed winds and moved farther into the estuary during periods of cold oceanic influxes. This study provides support for hypotheses that belugas use the location for moulting or to provide a thermal advantage for young belugas. This information can be used to inform decisions by northern communities and policy makers, thus aiding in management of the Beaufort Sea beluga population.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/146895
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Univ Manitoba, Dept Biol Sci, Winnipeg, MB R3T 2N2, Canada
2.Nat Resources Canada, Geol Survey Canada, Dartmouth, NS B2Y 4A2, Canada
3.Fisheries & Oceans Canada, Freshwater Inst, Winnipeg, MB R3T 2N6, Canada
4.Univ Manitoba, Dept Environm & Geog, Winnipeg, MB R3T 2N2, Canada

Recommended Citation:
Scharffenberg, K.,Whalen, D.,Marcoux, M.,et al. Environmental drivers of beluga whale Delphinapterus leucas habitat use in the Mackenzie Estuary, Northwest Territories, Canada[J]. MARINE ECOLOGY PROGRESS SERIES,2019-01-01,626:209-226
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