DOI: 10.1111/gcb.13316
论文题名: Distribution of skates and sharks in the North Sea: 112 years of change
作者: Sguotti C. ; Lynam C.P. ; García-Carreras B. ; Ellis J.R. ; Engelhard G.H.
刊名: Global change biology
ISSN: 13652486
出版年: 2016
卷: 22, 期: 8 起始页码: 2729
结束页码: 2743
语种: 英语
英文关键词: climate change
; community shift
; elasmobranchs
; fishing
; habitat degradation
; local extirpation
; marine historical ecology
Scopus关键词: climate change
; degradation
; fishing
; habitat fragmentation
; long-term change
; marine ecosystem
; pelagic fish
; shark
; animal
; climate change
; fishery
; growth, development and aging
; North Sea
; sea
; shark
; skate (fish)
; Animals
; Climate Change
; Fisheries
; North Sea
; Oceans and Seas
; Sharks
; Skates (Fish)
; Atlantic Ocean
; North Sea
; Chondrichthyes
; Elasmobranchii
; Leucoraja erinacea
; Mustelus canis canis
; Mustelus mustelus
; Raja asterias
; Raja clavata
; Scyliorhinus canicula
; Squalus acanthias
; Squatinidae
英文摘要: How have North Sea skate and shark assemblages changed since the early 20th century when bottom trawling became widespread, whilst their environment became increasingly impacted by fishing, climate change, habitat degradation and other anthropogenic pressures? This article examines long-term changes in the distribution and occurrence of the elasmobranch assemblage of the southern North Sea, based on extensive historical time series (1902-2013) of fishery-independent survey data. In general, larger species (thornback ray, tope, spurdog) exhibited long-term declines, and the largest (common skate complex) became locally extirpated (as did angelshark). Smaller species increased (spotted and starry ray, lesser-spotted dogfish) as did smooth-hound, likely benefiting from greater resilience to fishing and/or climate change. This indicates a fundamental shift from historical dominance of larger, commercially valuable species to current prevalence of smaller, more productive species often of low commercial value. In recent years, however, some trends have reversed, with the (cold-water associated) starry ray now declining and thornback ray increasing. This shift may be attributed to (i) fishing, including mechanised beam trawling introduced in the 1960s-1970s, and historical target fisheries for elasmobranchs; (ii) climate change, currently favouring warm-water above cold-water species; and (iii) habitat loss, including potential degradation of coastal and outer estuarine nursery habitats. The same anthropogenic pressures, here documented to have impacted North Sea elasmobranchs over the past century, are likewise impacting shelf seas worldwide and may increase in the future; therefore, parallel changes in elasmobranch communities in other regions are to be expected. © 2016 Crown Copyright. Global Change Biology published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61329
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre for Environment, Fisheries & Aquaculture Science (Cefas), Pakefield Road, Lowestoft, NR33 0HT, UK; Biology Department, University of Padova, Via U. Bassi, 58/B, 35121, Padova, Italy; Institute for Hydrobiology and Fisheries Science, University of Hamburg, Grosse Elbstrasse 133, 22767, Hamburg, Germany; Imperial College London, Silwood Park Campus, Ascot, Berkshire, SL5 7PY, UK; School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
Recommended Citation:
Sguotti C.,Lynam C.P.,García-Carreras B.,et al. Distribution of skates and sharks in the North Sea: 112 years of change[J]. Global change biology,2016-01-01,22(8)