DOI: 10.1111/gcb.12667
论文题名: Coral-algal phase shifts alter fish communities and reduce fisheries production
作者: Ainsworth C.H. ; Mumby P.J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 1 起始页码: 165
结束页码: 172
语种: 英语
英文关键词: Acidification
; Bleaching
; Coral disease
; Coral reefs
; Ecopath with ecosim
; Ecosystem-based management
; Raja ampat
; Reef fish
Scopus关键词: algae
; Anthozoa
; Raja
; animal
; Anthozoa
; biodiversity
; biomass
; coral reef
; ecosystem
; fish
; fishery
; food chain
; Indonesia
; physiology
; population dynamics
; seaweed
; Animals
; Anthozoa
; Biodiversity
; Biomass
; Coral Reefs
; Ecosystem
; Fisheries
; Fishes
; Food Chain
; Indonesia
; Population Dynamics
; Seaweed
英文摘要: Anthropogenic stress has been shown to reduce coral coverage in ecosystems all over the world. A phase shift towards an algae-dominated system may accompany coral loss. In this case, the composition of the reef-associated fish assemblage will change and human communities relying on reef fisheries for income and food security may be negatively impacted. We present a case study based on the Raja Ampat Archipelago in Eastern Indonesia. Using a dynamic food web model, we simulate the loss of coral reefs with accompanied transition towards an algae-dominated state and quantify the likely change in fish populations and fisheries productivity. One set of simulations represents extreme scenarios, including 100% loss of coral. In this experiment, ecosystem changes are driven by coral loss itself and a degree of habitat dependency by reef fish is assumed. An alternative simulation is presented without assumed habitat dependency, where changes to the ecosystem are driven by historical observations of reef fish communities when coral is lost. The coral-algal phase shift results in reduced biodiversity and ecosystem maturity. Relative increases in the biomass of small-bodied fish species mean higher productivity on reefs overall, but much reduced landings of traditionally targeted species. © 2014 The Authors 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/61789
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Marine Science, University of South Florida, 140 7th, St. Petersburg, FL, United States; Marine Spatial Ecology Lab, School of Biological Sciences, The University of Queensland, St. Lucia, QLD, Australia
Recommended Citation:
Ainsworth C.H.,Mumby P.J.. Coral-algal phase shifts alter fish communities and reduce fisheries production[J]. Global Change Biology,2015-01-01,21(1)