Northeastern Atlantic cold-water coral reefs and climate

Norbert Frank, Andre Freiwald, Matthias Lopez Correa, Claudia Wienberg, Markus Eisele, Dierk Hebbeln, David Van Rooij, Jean-Pierre Henriet, Christophe Colin, Tjeerd van Weering, Henk de Haas, Pal Buhl-Mortensen, JM Roberts, Ben De Mol, Eric Douville, Dominique Blamart, Christine Hatte

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    54 Citations (Scopus)

    Abstract

    U-series age patterns obtained on reef framework-forming cold-water corals collected over a nearly 6000-km-long continental margin sector, extending from off Mauritania (17 degrees N; northwest Africa) to the southwestern Barents Sea (70 degrees N; northeastern Europe), reveal strong climate influences on the geographical distribution and sustained development of these ecosystems. Over the past three glacial-interglacial cycles, framework-forming cold-water corals (Lophelia pertusa and Madrepora oculata) seem to have predominantly populated reefs, canyons, and patches in the temperate East Atlantic and the Mediterranean Sea. Above 50 degrees N corals colonize reefs in the northern East Atlantic primarily during warm climate periods with the biogeographic limit advancing from similar to 50 degrees N to similar to 70 degrees N. We propose that north-south oscillations of the biogeographic limit of reef developments are paced by ice ages and may occur synchronously with north-south displacement of cold nutrient-rich intermediate waters and surface productivity related to changes of the polar front.

    Original languageEnglish
    Pages (from-to)743-746
    Number of pages4
    JournalGeology
    Volume39
    Issue number8
    DOIs
    Publication statusPublished - Aug 2011

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