Keywords
diversity
macrobenthos
mollusks
venezuela
diversidad
comunidad
estructura
macrobentos
moluscos
venezuela
How to Cite
Abstract
The diversity of a sublittoral epifaunal mollusk community of Punta Patilla, Sucre State, Venezuela, was studied from September 1990 to September 1991. We identified 25 species (14 bivalves and 11 gastropods) of mollusks that inhabit gravel, soft sand and bottoms covered by Thalassia testudinum. Total diversity indices were H´ = 3.42, J´ = 0.74 and 1-D = 0.85. Monthly diversity reached its maximum in March 1991 (3.12 bits/ ind.), June 1991 (2.88 bits/ind.) and September 1991 (2.95 bits/ind.); minimum diversity was recorded in August 1991 (1.20 bits/ind.). A log series model showed a diversity index α = 4.56 for species abundance data and α = 3.11 for biomass data. The more abundant species were Chione cancellata, Antigona listeri, Chione granulata and Arca zebra among the bivalves, and Chicoreus brevifrons, Turritella variegata and Phyllonotus pomum among the gastropods (which present maximum biomass). The average total biomass (56.80 g/m2) is low when compared to reports from other tropical zones
References
Abbott, R.T. 1972. American seashell. 2° ed. Van Nostrand Reinhold Company. Nueva York. 663 p.
Abbott, R.T. 1974. American seashell. The marine mollusc of Atlantic and Pacific Coast of North America. Nueva York. 284 p.
Buchanan, J.B. 1958. The bottom fauna communities across the continental shelf off Accra, Ghana (Gold Coast). Proc. Zool. Soc. Lond. 130: 1-56
Ferráz-Reyes, E. 1993. Plataforma Noroccidental del Estado Sucre: Ecología de la Comunidad Nerítica en tres zonas pesqueras de importancia comercial. Proyecto Consejo de Investigación 5-019-00455191-92. UDO, Sucre. 265 p.
Graterol, A. 1986. Diversidad de moluscos en dos localidades del Golfo de Cariaco, Estado Sucre. Tesis de Licenciatura en Biología. Universidad de Oriente, Cumaná, Venezuela. 132 p.
Guzmán–Alvis, A. & O. Solano. 1977. Estructura de la taxocenosis annelida-mollusca en la región de Mingueo, Guajira (Caribe Colombiano). Bol. Invest. Mar. Cost. 26: 35-523.
Jackson, J.B. 1973. The ecology of Thalassia testudinum, Jamaica, West Indies. I. Distribution, environmental physiology and ecology of common shallow waters species. Bull. Mar. Sci. 23: 313- 350.
Krebs, C.J. 1985. Ecology: The experimental analysis of distribution and abundance. Harper & Row, Nueva York. 694 p.
Lodeiros, C., B. Marín & A. Prieto. 1999. Catalogo de moluscos marinos de las costas nororientales de Venezuela: Clase Bivalvia. Ediciones APUDONS. 108 p.
Margalef, R. 1980. Ecología. Ediciones Omega, S. A. Casanova, Barcelona, España. 951 p.
Marval, J. 1986. Diversidad de moluscos en dos playas rocosas de la isla de Margarita. Tesis de Licenciatura en Biología. Universidad de Oriente, Cumaná, Venezuela. 127 p.
Muller K., F.C. Mc Clain, T. Fishers, W. Esaias & R. Varela. 1989. Pigments distributions in the Caribbean Sea: Observations from the space. Progr. Oceanogr. 23: 23-64
Pielou, E.C. 1966. The menasurement of diversity in different types of biological collections. J. Theor. Biol. 13: 131-144
Prieto, A., L.J. Ruiz & N. García. 2001. Diversidad malacológica de una comunidad de Arca zebra en Chacopata, Estado Sucre, Venezuela. Rev. Biol. Trop. 49(2): 591-598.
Prieto, A., S. Sant, E. Méndez & C. Lodeiros. 2003. Diversidad y abundancia de moluscos en las praderas de Thalassia testudinum de la Bahía de Mochima, Parque Nacional Mochima, Venezuela. Rev. Biol. Trop. 51: 413-426.
Prieto, A. 1983. Ecología de Tivela mactroides Born, 1778 (Mollusca, Bivalvia) en Playa Güiria. Bol. Inst. Oceanogr. Univ. Oriente 22: 7- 19.
Reverol, Y.M., J.G. Delgado, Y.G. de Severeyn & H.J. Severeyn. 2004. Embrionary and larval development of the marine clam Tivela mactroides (Bivalvia: Veneridae) from Caño Sagua Beach, Zulia State, Venezuela. Rev. Biol. Trop. 52: 903-909.
Sant, S. 1994. Estudio ecológico de la comunidad de moluscos asociadas a praderas de Thalassia testudinum (Konig, 1805), en la Bahía de Mochima, Estado Sucre, Venezuela. Tesis de Licenciatura en Biología. Universidad de Oriente. Cumaná, Venezuela. 132 p.
Sparck, R. 1951. Density of bottom animals in the ocean floor. Nature 168: 112-113.
Strickland, J.D.H. & T.R. Parson. 1972. A practical handbook of seawater analysis. Bull. Fish. Res. Board. Can. Nº 167. 310 p.
Taylor, L.R., R. Kempton & J. Wolwood. 1976. Diversity statistics and the log-series model. J. Anim. Ecol. 45: 337-365.
Wolff, M. & E. Alarcón. 1993. Structure of scallop Argopecten purpuratus (Lamarck, 1819) dominated subtidal macroinvertebrate assemblage in northern Chile. J. Shellfish Res. 12: 295-304.
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