Diego L. Gil-Agudelo

Stony coral diseases observed in southwestern Caribbean reefs

Thirteen reef areas of Colombian territories in the Southwestern Caribbean were surveyed during the last 10 years. Coral diseases have been recorded in all these areas since 1990 and some of them have increased progressively. Six types were differentiated in the region, of which black band disease (BBD), dark spots disease (DSD), white band disease (WBD) and white plague disease (WPD) are widespread and common. Yellow band disease (YBD) was observed only since April 1998 but has been found now in seven reef areas and eight coral species (most of them recorded here as new hosts). In total, 25 species of hard corals were observed with diseases in the region, of which Colpophyllia natans, Diploria labyrinthiformis, Montastraea annularis, M. faveolata, M. franksi and Acropora spp. appear to be highly susceptible.

Dark Spots Disease and Yellow Band Disease, Two Poorly Known Coral Diseases with High Incidence in Caribbean Reefs

Coral reefs have been described as very stable systems in delicate balance with nature. They are also the most sensitive and vulnerable ecosystems in the sea (Grigg and Dollar 1990). Their exposure to some of the most common natural and anthropogenic perturbations have caused considerable decline of their health during the last three decades (Grigg and Dollar 1990; Ginsburg 1994; Birkeland 1997).

Análisis espacio temporal de la biología reproductiva y el reclutamiento del molusco bivalvo Anadara tuberculosa en la costa del Pacífico colombiano

Resumen es: Se estudio el ciclo reproductivo, reclutamiento y tallas de madurez de la piangua Anadara tuberculosa entre agosto de 2009 y agosto de 2010 en cuatro dep...