DOI: 10.1111/gcb.12256
论文题名: Tidal downwelling and implications for the carbon biogeochemistry of cold-water corals in relation to future ocean acidification and warming
作者: Findlay H.S. ; Artioli Y. ; Moreno Navas J. ; Hennige S.J. ; Wicks L.C. ; Huvenne V.A.I. ; Woodward E.M.S. ; Roberts J.M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 9 起始页码: 2708
结束页码: 2719
语种: 英语
英文关键词: Biogeochemistry
; Climate change
; Cold-water corals
; Ecologically and biologically significant Areas (EBSAs)
; Hydrography
; Ocean acidification
; Vulnerable Marine Ecosystems (VMEs)
Scopus关键词: acid
; sodium chloride
; acidification
; biogeochemistry
; climate change
; cold water
; coral reef
; downwelling
; empirical analysis
; hydrodynamics
; hydrography
; inorganic carbon
; internal wave
; marine ecosystem
; nutrient dynamics
; pH
; seafloor
; seawater
; tidal cycle
; water column
; animal
; Anthozoa
; article
; biogeochemistry
; chemistry
; climate change
; cold-water corals
; coral reef
; ecologically and biologically significant Areas (EBSAs)
; hydrography
; metabolism
; ocean acidification
; sea
; temperature
; tsunami
; Vulnerable Marine Ecosystems (VMEs)
; biogeochemistry
; climate change
; cold-water corals
; ecologically and biologically significant Areas (EBSAs)
; hydrography
; ocean acidification
; Vulnerable Marine Ecosystems (VMEs)
; Acids
; Animals
; Anthozoa
; Coral Reefs
; Oceans and Seas
; Sodium Chloride
; Temperature
; Tidal Waves
; Atlantic Ocean
; Mingulay Reef
; Scotland
; Sea of the Hebrides
; United Kingdom
; Anthozoa
英文摘要: Cold-water coral (CWC) reefs are recognized as ecologically and biologically significant areas that generate habitats and diversity. The interaction between hydrodynamics and CWCs has been well studied at the Mingulay Reef Complex, a relatively shallow area of reefs found on the continental shelf off Scotland, UK. Within 'Mingulay Area 01' a rapid tidal downwelling of surface waters, brought about as an internal wave, is known to supply warmer, phytoplankton-rich waters to corals growing on the northern flank of an east-west trending seabed ridge. This study shows that this tidal downwelling also causes short-term perturbations in the inorganic carbon (CT) and nutrient dynamics through the water column and immediately above the reef. Over a 14 h period, corresponding to one semi-diurnal tidal cycle, seawater pH overlying the reef varied by ca. 0.1 pH unit, while pCO2 shifted by >60 μatm, a shift equivalent to a ca. 25 year jump into the future, with respect to atmospheric pCO2. During the summer stratified period, these downwelling events result in the reef being washed over with surface water that has higher pH, is warmer, nutrient depleted, but rich in phytoplankton-derived particles compared to the deeper waters in which the corals sit. Empirical observations, together with outputs from the European Regional Shelf Sea Ecosystem Model, demonstrate that the variability that the CWC reefs experience changes through the seasons and into the future. Hence, as ocean acidification and warming increase into the future, the downwelling event specific to this site could provide short-term amelioration of corrosive conditions at certain times of the year; however, it could additionally result in enhanced detrimental impacts of warming on CWCs. Natural variability in the CT and nutrient conditions, as well as local hydrodynamic regimes, must be accounted for in any future predictions concerning the responses of marine ecosystems to climate change. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62344
Appears in Collections: 影响、适应和脆弱性
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作者单位: Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth PL1 3DH, United Kingdom; Centre for Marine Biodiversity and Biotechnology, School of Life Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom; National Oceanography Centre Southampton, European Way, Southampton SO14 3ZH, United Kingdom; Scottish Association for Marine Science, Oban PA37 1QA, United Kingdom; Center for Marine Science, University of North Carolina Wilmington, 601 S. College Road, Wilmington, NC 28403-5928, United States
Recommended Citation:
Findlay H.S.,Artioli Y.,Moreno Navas J.,et al. Tidal downwelling and implications for the carbon biogeochemistry of cold-water corals in relation to future ocean acidification and warming[J]. Global Change Biology,2013-01-01,19(9)