DOI: 10.1111/gcb.13835
Scopus记录号: 2-s2.0-85028606190
论文题名: Thermal affinity as the dominant factor changing Mediterranean fish abundances
作者: Givan O. ; Edelist D. ; Sonin O. ; Belmaker J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 1 起始页码: e80
结束页码: e89
语种: 英语
英文关键词: biotic interactions
; climate change
; community ecology
; ecological traits
; fish
; fishery
; invasion
; Mediterranean
Scopus关键词: biomass
; climate change
; community ecology
; ecosystem function
; fish
; invasive species
; life history trait
; population decline
; relative abundance
; temperature effect
; Indian Ocean
; Mediterranean Region
; Red Sea [Indian Ocean]
; adaptation
; animal
; animal dispersal
; classification
; climate change
; ecosystem
; fish
; Indian Ocean
; Mediterranean Sea
; physiology
; temperature
; Adaptation, Physiological
; Animal Distribution
; Animals
; Climate Change
; Ecosystem
; Fishes
; Indian Ocean
; Mediterranean Sea
; Temperature
英文摘要: Recent decades have seen profound changes in species abundance and community composition. In the marine environment, the major anthropogenic drivers of change comprise exploitation, invasion by nonindigenous species, and climate change. However, the magnitude of these stressors has been widely debated and we lack empirical estimates of their relative importance. In this study, we focused on Eastern Mediterranean, a region exposed to an invasion of species of Red Sea origin, extreme climate change, and high fishing pressure. We estimated changes in fish abundance using two fish trawl surveys spanning a 20-year period, and correlated these changes with estimated sensitivity of species to the different stressors. We estimated sensitivity to invasion using the trait similarity between indigenous and nonindigenous species; sensitivity to fishing using a published composite index based on the species’ life-history; and sensitivity to climate change using species climatic affinity based on occurrence data. Using both a meta-analytical method and random forest analysis, we found that for shallow-water species the most important driver of population size changes is sensitivity to climate change. Species with an affinity to warm climates increased in relative abundance and species with an affinity to cold climates decreased suggesting a strong response to warming local sea temperatures over recent decades. This decrease in the abundance of cold-water-associated species at the trailing “warm” end of their distribution has been rarely documented. Despite the immense biomass of nonindigenous species and the presumed high fishing pressure, these two latter factors seem to have only a minor role in explaining abundance changes. The decline in abundance of indigenous species of cold-water origin indicates a future major restructuring of fish communities in the Mediterranean in response to the ongoing warming, with unknown impacts on ecosystem function. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110579
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: George S. Wise Faculty of Life Sciences, School of Zoology, Tel Aviv University, Tel Aviv, Israel; Israel Oceanographic and Limnological Research, Tel-Shikmona, Haifa, Israel; Department of Fisheries and Aquaculture, Ministry of Agriculture and Rural Development, Beit-Dagan, Israel; The Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, Israel
Recommended Citation:
Givan O.,Edelist D.,Sonin O.,et al. Thermal affinity as the dominant factor changing Mediterranean fish abundances[J]. Global Change Biology,2018-01-01,24(1)