Malacological record of the Bocaripo lagoon system northeast coast of Venezuela.

Boletín del Centro de Investigaciones Biológicas

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Title Malacological record of the Bocaripo lagoon system northeast coast of Venezuela.
Registro malacológico del Sistema Lagunar Bocaripo, Costa Nororiental de Venezuela.
 
Creator Jiménez-Ramos, Erickxander
Acosta-Balbas, Vanessa
Hernández, Lederle
Frontado, Jaime
 
Subject Avicennia germinans;
South Caribbean;
Rhizophora mangle;
mollusks;
Thalassia testudinum;
Venezuela
Avicennia germinans;
Caribe sur;
Rhizophora mangle;
moluscos;
Thalassia testudinum;
Venezuela.
 
Description The eastern zone of Venezuela includes the areas with the highest aquatic produc-tivity of the Caribbean coasts, being the coastal lagoon systems, those that harbor the greatest diversity. According to the aforementioned, between January 2016 and Ja-nuary 2018, an inventory of mollusks was carried out in the Bocaripo Lagoon System, Northeastern Coast of Venezuela, associated with different environments present in the lagoon: Thalassia testudinum (Tt), Rhizophora mangle (Rm ), Avicennia germinans (Ag) and sediments without vegetation (Ssv). 2.546 specimens were collected, identi-fying 160 species (Gastropoda: 98, Bivalvia: 60, Polyplacophora: 2) and 61 families of the Phylum Mollusca, of which 36 species constitute first reports for this lagoon system and 24 represent a resource of commercial importance fishery. The families with the highest number of species were Columbellidae, Marginellidae, Muricidae, Mytilidae, Olividae, Tellinidae and Veneridae. The environment that presented the hig-hest specific richness was T. testudinum with 126 species, followed by R. mangle (56), sediments without vegetation (54) and A. germinans (22), with low species similarity between environments. The gastropods: Cerithium eburneum, Engoniophos unicinc-tus, Fasciolaria tulipa, Melongena melongena and Phrontis vibex, were constant in the four environments evaluated. The malacological fauna identified in T. testudinum, R. mangle and in sediments without vegetation, was mainly made up of accessory species (Tt: 45, Rm: 10, Ssv: 13) and accidental (Tt: 41, Rm: 20, Ssv: 24), while in A. germinans 20 of the 22 species collected were constant during sampling. The con-vergence of different environments within the Bocaripo Lagoon System, evaluated creates a complex network of microhabitats, which allows the establishment of high species richness.
La zona oriental de Venezuela incluye las áreas de mayor productividad acuática de las costas caribeñas, siendo los sistemas lagunares costeros, los que albergan la mayor diversidad. De acuerdo a lo antes señalado, entre enero 2016 y enero 2018, se realizó un inventario de moluscos en el Sistema Lagunar Bocaripo, Costa Nororiental de Ve-nezuela, asociados a diferentes ambientes presentes en la laguna: Thalassia testudinum(Tt), Rhizophora mangle (Rm), Avicennía germinans (Ag) y sedimentos sin vegetación (Ssv). Se recolectaron 2546 ejemplares, identificándose 160 especies (Gastropoda: 98, Bivalvia: 60, Polyplacophora: 2) y 61 familias del Phylum Mollusca, de las cuales, 36 especies constituyen primeros reportes para este sistema lagunar y 24 representan un recurso de importancia comercial pesquera. Las familias que presentaron el mayor nú-mero de especies fueron: Columbellidae, Marginellidae, Muricidae, Mytilidae, Olivi-dae, Tellinidae y Veneridae. El ambiente que presentó la mayor riqueza específica fue T. testudinum con 126 especies, seguido por R. mangle (56), sedimentos sin vegetación (54) y A. germinans (22), con baja similitud de especies entre ambientes. Los gasteró-podos: Cerithium eburneum, Engoniophos unicinctus, Fasciolaria tulipa, Melongena melongena y Phrontis vibex, fueron constantes en los cuatro ambientes evaluado La fauna malacológica identificada en T. testudinum, R. mangle y en sedimentos sin vegetación, estuvo integrada principalmente por especies accesorias (Tt: 45, Rm: 10, Ssv: 13) y accidentales (Tt: 41, Rm: 20, Ssv: 24), mientras que en A. germinans 20 de las 22 especies colectadas, fueron constantes durante el muestreo. La convergencia de diferentes ambientes dentro del Sistema Lagunar Bocaripo, crea una compleja red de microhábitats, que permite el establecimiento de una alta riqueza de especies
 
Publisher Universidad del Zulia
 
Date 2021-01-25
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
text/html
 
Identifier https://produccioncientificaluz.org/index.php/boletin/article/view/34917
 
Source Boletín del Centro de Investigaciones Biológicas; Vol. 53 Núm. 3 (2019): Boletín del Centro de Investigaciones Biológicas: Diciembre 2019; 250-272
2477-9458
0375-538X
 
Language spa
 
Relation https://produccioncientificaluz.org/index.php/boletin/article/view/34917/36895
https://produccioncientificaluz.org/index.php/boletin/article/view/34917/36896
 
Rights Derechos de autor 2021 Boletín del Centro de Investigaciones Biológicas
http://creativecommons.org/licenses/by-nc-sa/4.0
 

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