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Title: | MOLUSCOS ASOCIADOS A LA PEPITONA Arca zebra (MOLLUSCA: BIVALVIA) EN CHACOPATA, ESTADO SUCRE, VENEZUELA |
Authors: | Acosta, Vanesa Prieto, Antulio Ruiz, Lilia J. Gil, Humberto |
Keywords: | diversidad moluscos comunidad Arca zebra Venezuela diversity mollusks community |
Issue Date: | Jun-2007 |
Publisher: | Universidad de Oriente |
Abstract: | RESUMEN: Con base a colectas intensivas, se realizó un estudio de los moluscos asociados a la pepitona Arca zebra en el banco de Chacopata estado Sucre, Venezuela. Se colectaron un total de 713 organismos pertenecientes a 53 especies (36 gasterópodos, 14 bivalvos, 2 poliplacóforos y 1 cefalópodo). Dentro de los gasterópodos las familias con mayor número de especies fueron Columbellidae y Marginellidae (4) y en los bivalvos Mytilidae (3). Los parámetros de diversidad especifi ca total, excluyendo a Arca zebra, fueron: H´ = 4,63; J´ = 0,81; N1 = 24,90; N2= 19,93; α= 13,23. La elevada diversidad de especies en la zona se explica por la alta productividad de Arca zebra, la concentración de variados biotopos y factores biogeográfi cos particulares de la región. ABSTRACT: Based on intensive collecting, a study of molluscan species associated with the bivalve Arca zebra in the Chacopata Bank, Sucre state, Venezuela, was performed. A total of 713 individuals belonging to 53 species were collected (36 gastropods, 14 bivalves, 2 polyplacophorans and 1 cephalopod). The families with the highest number of species in gastropods were Marginellidae and Columbellidae (4) and in bivalves Mytilidae (3). Diversity parameters, excluding Arca zebra, were: H(S) = 4.63; E= 0.81; N1 =24.90; N2= 19.93; α= 13.23. The high number of species occurring in this area can be explained by the great productivity of Arca zebra, the availability of different habitat types and biogeographic features of the region. |
URI: | http://ri2.bib.udo.edu.ve:8080/jspui/handle/123456789/3879 |
ISSN: | 1315-0162 |
Appears in Collections: | Revista SABER - Vol. 19 - Nros. 1 y 2 del año 2007 |
Files in This Item:
File | Description | Size | Format | |
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03 MOLUSCOS ASOCIADOS A LA PEPITONA.pdf | 282,24 kB | Adobe PDF | View/Open |
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