globalchange  > 气候减缓与适应
DOI: 10.3354/meps12803
WOS记录号: WOS:000456206700001
论文题名:
Impact of multiple stressors on sea bed fauna in a warming Arctic
作者: Jorgensen, Lis L.1; Primicerio, Raul2; Ingvaldsen, Randi B.1; Fossheim, Maria1; Strelkova, Natalia3; Thangstad, Trude H.1; Manushin, Igor3; Zakharov, Denis3
通讯作者: Jorgensen, Lis L.
刊名: MARINE ECOLOGY PROGRESS SERIES
ISSN: 0171-8630
EISSN: 1616-1599
出版年: 2019
卷: 608, 页码:1-12
语种: 英语
英文关键词: Climate warming ; Sea ice reduction ; Trawling ; Snow crab invasion ; Megabenthos ; Sensitivity ; Vulnerable species
WOS关键词: CLIMATE-CHANGE IMPACTS ; BARENTS SEA ; TRAWLING DISTURBANCE ; BIOGEOGRAPHY ; FISHERIES ; SHELF ; VARIABILITY ; MANAGEMENT ; DIVERSITY ; ZONE
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:

The Arctic Barents Sea is experiencing a record temperature increase, a poleward shift in the distributions of commercial fish stocks, and invasion by the snow crab, a new predator. To evaluate benthic community vulnerability when exposed to seawater warming, bottom trawling, and predation from a new predator, we used a trait-based approach and applied this to an extensive dataset of >450 megabenthic taxa, from a 1.5 million km 2 area. Taxon rank values were obtained after sorting the taxa by temperature median and temperature range, i.e. the temperature sensitivity trait, and by body height, mean weight, and mobility, i.e. the trawl vulnerability trait, and were given as a size-based prey classification, i.e. the predation trait. The taxon rank values were then used to calculate the mean community sensitivity. Our study showed a recent significant increase in community mean temperature ranks, indicating an increased importance of species with affinity for warmer waters and a reduced importance of coldwater species. Commercial fish stocks and snow crabs are expanding into the western part of the Barents Sea, thereby simultaneously increasing the exposure of large immobile species to trawling and of small prey species to crab predation. Overall, we found a high level of vulnerability to the 3 investigated stressors in the northwestern Barents Sea, which may lead to alterations in community structure and diversity. Mapping vulnerability to multiple stressors enables authorities managing human activities to identify vulnerable areas that warrant special measures, including protection from trawling and reduction of the snow crab stock.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/124627
Appears in Collections:气候减缓与适应

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作者单位: 1.Inst Marine Res, N-9294 Tromso, Norway
2.Univ Tromso Arctic Univ Norway, N-9037 Tromso, Norway
3.Knipovich Polar Res Inst Marine Fisheries & Ocean, Murmansk 183038, Russia

Recommended Citation:
Jorgensen, Lis L.,Primicerio, Raul,Ingvaldsen, Randi B.,et al. Impact of multiple stressors on sea bed fauna in a warming Arctic[J]. MARINE ECOLOGY PROGRESS SERIES,2019-01-01,608:1-12
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