Asociación a sustratos de los erizos regulares (Echinodermata: Echinoidea) en la laguna arrecifal de Isla Verde, Veracruz, México E.V. Celaya-Hernández, F.A. Solís-Marín, A. Laguarda-Figueras., A. de la L. Durán-González & T. Ruiz Rodríguez Laboratorio de Sistemática y Ecología de Equinodermos, Instituto de Ciencias del Mar y Limnología (ICML), Universidad Nacional Autónoma de México (UNAM), Apdo. Post. 70-305, México D.F. 04510, México; e-mail:
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[email protected] Recibido 15-VIII-2007. Corregido 06-V-2008. Aceptado 17-IX-2008. Abstract: Regular sea urchins substrate association (Echinodermata: Echinoidea) on Isla Verde lagoon reef, Veracruz, Mexico. The diversity, abundance, distribution and substrate association of the regular sea urchins found at the South part of Isla Verde lagoon reef, Veracruz, Mexico is presented. Four field sampling trips where made between October, 2000 and October, 2002. One sampling quadrant (23 716 m2) the more representative, where selected in the southwest zone of the lagoon reef, but other sampling sites where choose in order to cover the south part of the reef lagoon. The species found were: Eucidaris tribuloides tribuloides, Diadema antillarum, Centrostephanus longispinus rubicingulus, Echinometra lucunter lucunter, Echinometra viridis, Lytechinus variegatus and Tripneustes ventricosus. The relation analysis between the density of the echi- noids species found in the study area and the type of substrate was made using the Canonical Correspondence Analysis (CCA). The substrates types considerate in the analysis where: coral-rocks, rocks, rocks-sand, and sand and Thalassia testudinum.