Abstract
Several biometric characteristics, sexual dimorphism and meat percentage were studied in a popula· tion of Anadara tuberculosa at Punta Morales, Costa Rica, from May, 1980 to April, 1981. Samples were ar· bitrarily divided into three size categories (1: 4247.5 mm; 2: 48-5 3.5 mm and 3: 54·59.5 mm). No sexual dimorphism was found in the length-weight ratio. Growth appears to be allometric. The best model to ex· press wet meat weight is the quadratic, with length being the most consistent parameter. It was also found that meat percentage was greater in those individuals of the first size category (20.34%), and smaller in individuals of size 3 (16.31 %. Mean meat percentage was estimated at 18.26%
References
Ansell, A. 1961. Reproduction, growth and mortality of Venus striatula (da Costa) in Kames Bay, Millport. J. Mar. Biol. Ass. UK; 41: 191-215.
Baqueiro, E. 1980. Population structure of the mangrove cockle Anadara tuberculosa (Sowerby, 1833) from eight mangrove swamps in Magdalena and Almejas Bays, Baja California Sur, México. Proc. Nat. Shellfish Ass., 70: 201-206.
Betancourt, J., & J. Cantera. 1978. Estudio ecológico y económico de la piangua. Mem. 1er. Seminario sobre el Oceáno Pacífico Sudamericano, Cali, Set. 1976.
Brown, R.A., R. Seed, y R. O'Connors. 1 976. A comparison of relative growth in Cerastoderma (= cardium) edule, Modiolus modiolus and Mytilus edulis (Mollusca: Bivalvia). J. Zool., 179: 297-315.
Castaing, A., J. Jiménez, & C. Villalobos. 1980. Observaciones sobre la ecología de manglares en la costa Pacífica de Costa Rica y su relación con la distribución del molusco Geloina inflata (Philippi) Pelecypoda: Corbiculidae. Rev. Biol. Trop., 28: 323-339.
Cruz, R.A. 1982. Variación mensual del índice de condición del molusco Anadara tuberculosa (Pelecypoda: Arcidae) en Punta Morales, Puntarenas, Costa Rica. Rev. Biol. Trop., 30: 1-4.
Ellis, E.M. 1968. Moluscos de Nicaragua y Costa Rica. Programa regular de Desarrollo Pesquero de Centroamérica, Informes: 8 p.
Flores, C. 1982. La maricultura y su futuro en Venezuela. Lagena, Inst. Oceanográfico, Univ. Oriente, 30: 43-56.
Hagberg, A., & C. Kalb. 1968. Marine shelled mollusks of commercial importance in Central America. Boletín técnico F.A.O. El Salvador, 32 p.
Jones, A. 1979. Structure and growth of a high-level population of Cerastoderma edule (Lamellibranchiata). J. Mar. Biol. Ass. UK., 59: 277-287.
Keen, A. 1971. Sea Shells of Tropical West America. Stanford Univ. Press. 1064 p.
Mars, R. 1951. Essai d'interpretation des formes généralement froupées sotis le nom de Cardium edule Linné. Bull. Mus. Nat. Hist. Nat., 11: 1-31.
Menzel, R. 1971. Possibilities of molluscan cultivation in the Caribbean. Symposium on Investigations and Resources of the Caribbean Sea and Adjacent regions. F.A.O. Roma, 183-200 p.
Olsson, A. 1961. Mollusks of the Tropical eastern Pacific, particularly from the southern half of the Panamic-Pacific faunal province (Panamá-Perú). Panamic-Pacific Pelecypoda, Paleontological Research Inst., Ithaca, N.Y. 574 p.
Pathansali, D., & M. Soong, 1958. Some aspects of cockle (Anadara granosa L.) culture in Malaya. Proc. Indo Pacific Fish. Coun., 8 : 26-31.
Peña, G. 1970. Biocenosis de los manglares peruanos. Anales cientÍficos, Univ. Nac. Agraria, 9: 3845.
Purchon, R. 1939. The effect of the environment upon the shell of Cardium edule. Proc. Malacol. Soc. London, 23: 256-267.
Quayle, D. 1952. The rate of growth of Venerupis pallustra (Montagu) at Millport, Scotland. Proc. Roy. Soc. Edimb., 64: 384-406.
Ricker, W.E. 1958. Handbook of computations for Biological statistics of fish populations. J. Fish. Res. Bd. Canada. Bull., 119. 300 p.
Sokal, F., & R. Rohlf. 1979. Biometría, H. Blume Ediciones, España, 922 p.
Squires, M., M. Estevez, O. Barona, & O. Mora. 1978. Mangrove cockles, Anadara spp. (Mollusca: Bivalvia) of the Pacific coast of Colombia. The Veliger,
: 57-68.
Vélez, A., & R. MartÍnez. 1967. Reproducción y desarrollo larval experimental del mejillón comestible de Venezuela, Perna perna (Linnaeus, 1756). Bol. Inst. Oceanogr. Univ. Oriente, 6: 266-285.
Weymouth, F., H.C. McMillan, & H. Rich. 1931. Latitude and relative growth in the razor clam Siliqua patula. J. Exp. Biol., 18: 228-249.
Zilch, A. 1954. Moluscos de los manglares del Salvador. Com. Inst. Trop. Invest. Cien., El Salvador, Yr. 3, 77-87.
Comments
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 1983 Revista de Biología Tropical