Abundancia de Diadema antillarum (Echinodermata: Echinoidea) en las costas de Venezuela
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چکیده
منابع مشابه
Bioerosion caused by the sea urchin Diadema Mexicanum (Echinodermata: Echinoidea) at Bahías de Huatulco, Western Mexico.
Mexican Pacific sea urchin studies have been focused mainly on species distribution, ecology and fisheries. Reef degradation by sea urchin bioerosion has not been studied previously en these reefs. We investigate the importance of Diadema mexicanum as a bioerosive agent of coral carbonate at Bahias de Huatulco, and the relative magnitude of coral accretion and bioerosion. At each of five locali...
متن کاملSpatial and seasonal variation of the gonad index of Diadema antillarum (Echinodermata: Echinoidea) in the Canary Islands
The sea urchin Diadema antillarum Philippi has a tropical-subtropical amphiatlantic distribution. According to Lessios et al. (2001), there are two genetically separate forms, one from the western and central Atlantic (D. antillarum-a) and one from the eastern Atlantic (D. antillarum-b). The latter form is found from the Madeira Archipelago to the Gulf of Guinea, including the Selvages, Canary ...
متن کاملA new species of Diadema (Echinodermata: Echinoidea: Diadematidae) from the eastern Atlantic Ocean and a neotype designation of Diadema antillarum (Philippi, 1845).
Diadenia africanum sp. nov. Rodríguez et al. 2013 occurs in the eastern Atlantic Ocean at depths of 1-80 meters off Ma- deira Islands, Salvage Islands, Canary Islands, Cape Verde Islands, Sâo Tome Islands and at the continental coast off Sen- egal and Ghana. This species was previously considered an eastern Atlantic population of D. antillarum. Genetic distances between the holotype of D. afric...
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The 1983-1984 mass mortality of Diadema antillarum produced severe damages on Caribbean reefs contributing to substantial changes in community structure that still persist. Despite the importance of Diadema grazing in structuring coral reefs, available information on current abundances and algal-urchin interactions in Cuba is scarce. We analyzed spatial variations in Diadema abundance and its i...
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ژورنال
عنوان ژورنال: Revista de Biología Tropical
سال: 2013
ISSN: 2215-2075,0034-7744
DOI: 10.15517/rbt.v54i3.12789