Phosphorus in Cold-Water Corals as a Proxy for Seawater Nutrient Chemistry
2006
Montagna, Paolo | McCulloch, Malcom | Taviani, Marco | Mazzoli, Claudio | Vendrell Simón, Begoña
4 pages, 3 figures
Afficher plus [+] Moins [-]Phosphorus is a key macronutrient being strongly enriched in the deep ocean as a result of continuous export and remineralization of biomass from primary production. We show that phosphorus incorporated within the skeletons of the cosmopolitan cold-water coral Desmophyllum dianthus is directly proportional to the ambient seawater phosphorus concentration and thus may serve as a paleo-oceanographic proxy for variations in ocean productivity as well as changes in the residence times and sources of deep-water masses. The application of this tool to fossil specimens from the Mediterranean reveals phosphorus-enriched bottom waters at the end of the Younger Dryas period
Afficher plus [+] Moins [-]Peer Reviewed
Afficher plus [+] Moins [-]Informations bibliographiques
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