Fine-scale nutrient and carbonate system dynamics around cold-water coral reefs in the northeast Atlantic

Helen S Findlay, Sebastian John Hennige, Laura C Wicks, Juan Moreno Navas, E Malcolm S Woodward, J. Murray Roberts

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)

    Abstract

    Ocean acidification has been suggested as a serious threat to the future existence of cold-water corals (CWC). However, there are few fine-scale temporal and spatial datasets of carbonate and nutrients conditions available for these reefs, which can provide a baseline definition of extant conditions. Here we provide observational data from four different sites in the northeast Atlantic that are known habitats for CWC. These habitats differ by depth and by the nature of the coral habitat. At depths where CWC are known to occur across these sites the dissolved inorganic carbon ranged from 2088 to 2186 mu mol kg(-1), alkalinity ranged from 2299 to 2346 mu mol kg(-1), and aragonite Omega ranged from 1.35 to 2.44. At two sites fine-scale hydrodynamics caused increased variability in the carbonate and nutrient conditions over daily time-scales. The observed high level of variability must be taken into account when assessing CWC sensitivities to future environmental change.

    Original languageEnglish
    Article number3671
    Number of pages10
    JournalScientific Reports
    Volume4
    DOIs
    Publication statusPublished - 20 Jan 2014

    Keywords

    • LOPHELIA-PERTUSA SCLERACTINIA
    • GULF-OF-MEXICO
    • OCEAN ACIDIFICATION
    • ROCKALL TROUGH
    • NE ATLANTIC
    • PORCUPINE SEABIGHT
    • INORGANIC CARBON
    • UP-REGULATION
    • MOUNDS
    • GROWTH

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