Coral Cd/Ca and Mn/Ca records of ENSO variability in the Gulf of California

We analyzed the trace element ratios Cd/Ca and Mn/Ca in three coral colonies (Porites panamensis (1967–1989), Pavona clivosa (1967–1989) and Pavona gigantea (1979–1989)) from Cabo Pulmo reef, Southern Gulf of California, Mexico, to assess the oceanographic changes caused by El Niño – Southern Oscill...

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Bibliographic Details
Published in:Climate of the past 2010-01, Vol.6 (3), p.401-410
Main Authors: Carriquiry, J. D., Villaescusa, J. A.
Format: Article
Language:English
Subjects:
Marine
Pavona
Pavona gigantea
Porites
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Summary:We analyzed the trace element ratios Cd/Ca and Mn/Ca in three coral colonies (Porites panamensis (1967–1989), Pavona clivosa (1967–1989) and Pavona gigantea (1979–1989)) from Cabo Pulmo reef, Southern Gulf of California, Mexico, to assess the oceanographic changes caused by El Niño – Southern Oscillation (ENSO) events in the Eastern Tropical North Pacific (ETNP). Interannual variations in the coral Cd/Ca and Mn/Ca ratios showed clear evidence that incorporation of Cd and Mn in the coral skeleton was influenced by ENSO conditions, but the response for each metal was controlled by different processes. The Mn/Ca ratios were significantly higher during ENSO years (p
ISSN:1814-9332
1814-9324
1814-9332
DOI:10.5194/cp-6-401-2010