Resumen del producto

Mollusks are organisms associated with a variety of rocky substrates, coral reefs, seagrasses and macroalgal assemblages. In the Gulf of California Sargassum horridum is an ecologically important habitat that provides shelter to diverse organisms of importance ecology, economic and fisheries, shares habitat with Acanthophora spicifera is an exotic species. So a comparison of the structure of associations epibionts mollusks associated with S. horridum and A. spicifera in Punta roca caimancito, Bahía de la Paz, B.C.S was performed during april and may 2014. In S. horridum 4,771 organisms were quantified in a total of 120 cm² of algal tissue representing 23 species, 8 genera and 1 organism identified to family level. In A. spicifera 1,937 were quantified in the same area, including 17 species, 2 genera, 1 organism identified to family level and 1 organism identified to class. The most abundant species associated with S. horridum were Barleeia carpenteri accounting for 60% of individuals in April and Diffalaba opinosa accounting for 43% in May. In A. spicifera the most abundant species was Elachisina grippi comprising 68% and 78% of individuals in April and May, respectively. There were significant differences in species richness between the two host algae. So we conclude that both algae have a different structure of this community is that present a different morphology that allows epibionts specificity to each.

Palabras clave: abundance; magroagal assemblages; mollusks; substrates

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx