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Fine-scale nutrient and carbonate system dynamics around cold-water coral reefs in the northeast Atlantic
Findlay, H.S.; Hennige, S.J.; Wicks, L.C.; Moreno Navas, J.; Woodward, E.M.S.; Roberts, J.M. (2014). Fine-scale nutrient and carbonate system dynamics around cold-water coral reefs in the northeast Atlantic. NPG Scientific Reports 4(3671): 10 pp. http://dx.doi.org/10.1038/srep03671
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
Peer reviewed article  
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  • Findlay, H.S.
  • Hennige, S.J.
  • Wicks, L.C.
  • Moreno Navas, J.
  • Woodward, E.M.S.
  • Roberts, J.M.
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 µmol kg-1, alkalinity ranged from 2299 to 2346 µmol kg-1, and aragonite O 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.
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