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  • 1
    Publication Date: 2021-05-19
    Description: Se registra un total de 263 especies de moluscos (201 encontradas vivas) colectadas entre 1982 y 1989 en siete localidades arrecifales de la región de Santa-Marta, Colombia. Los moluscos fueron ordenados de acuerdo a las zonas de arrecife en que fueron encontradas, a sus hábitos alimentarios y a su modo de vida. El dendrograma resultante del análisis de similaridad faunística entre las zonas muestra que existen tres tipos básicos de comunidades en el arrecife (asentadas respectivamente en zonas someras, zona de declive arrecifal y zona con coral muerto y arena), más una comunidad pobre en especies y restringida a la zona dominada por el coral Agaricia tenuifo/ia. Existen algunas diferencias entre las zonas arrecifales en cuanto a la distribución porcentual de especies con ciertos hábitos limentarios. Los gastrópodos errantes y carnívoros constituyen el grupo más abundante en especies, aunque en ciertas zonas los bivalvos filtradores y los gastrópodos herbívoros alcanzan proporciones significativas. Algunas especies no eran conocidas anteriormente del Caribe colombiano.
    Description: A total of 263 molluscan species (201 of them found alive), collected from 1982 to 1989, is reported from seven coral reef localities of the Santa Marta área, Colombia. Species were arranged accordingto the reef zones ¡n which they were found, theirfeeding habits and mode of life. Cluster analysis of faunal similarity between reef zones revealed the ocurrence of three molluscan assemblages (settled respectively in shallow environments, reef-slope zones, and sand-coral rubble zones), plus one containing few species and limited to a small zone dominated by lettuce coral (Agaricia tenuifolia}. There are some differences between reef zones in the distribution of species with respect tofeeding habits. Vagrant, carnivore gastropods constitute the most diverse group, butfilter-feeding bivalvesand herbivore gastropods reach high numbers in some zones. Some species were not recorded previouslyfrom the Caribbean coastof Colombia.
    Description: Published
    Description: Determinants factor, Diversity, Biostatistics
    Keywords: Malacology ; Geographical distribution ; Feeding behaviour ; Population structure ; Malacology ; Habitat ; Geographical distribution ; Interspecific relationships ; Feeding behaviour ; Population structure ; Abundance
    Repository Name: AquaDocs
    Type: Journal Contribution
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