Gender-related differences in the apparent timing of skeletal density bands in the reef-building coral Siderastrea siderea
Periodo de realización: 2013/06/01 al 2013/01/01
Tipo: Artículo científico
Lugar(es) de estudio: Puerto Morelos, Q.R., México
Resumen: "Density banding in skeletons of reef-building corals is a valuable source of proxy environmental data. However, skeletal growth strategy has a significant impact on the apparent timing of density-band formation. Some corals employ a strategy where the tissue occupies previously formed skeleton during as the new band forms, which leads to differences between the actual and apparent band timing. To investigate this effect, we collected cores from female and male colonies of Siderastrea siderea and report tissue thicknesses and density-related growth parameters over a 17-yr interval. Correlating these results with monthly sea surface temperature (SST) shows that maximum skeletal density in the female coincides with low winter SSTs, whereas in the male, it coincides with high summer SSTs."