Abstract
The american oyster Crassostrea virginica is exploited along Gulf of Mexico. This resource represents a job source and incomes for fishermen. In Mexico the production is supported by Tabasco state, the first producer. However, the mexican landings of this bivalve had been dropped about 40% last ten years. By 1999, Tabasco presents a unique ban season fishery of oysters. This season was based in evaluation of gonadal development by visual observations of color and texture, larvae and seeds abundance. In 2000, the government set up two ban seasons in terms of evaluation of populations every year, without gonadal analysis. In general, exists different spawning seasons for american oyster, in accordance with the environmental conditions. It is necessary to establish a ban season according to reproductive cycle. This study presents the gonadic cycle for an oyster population of Mecoacán lagoon along a year. It was defined five phases of the gonad development: resting, gametogenesis, mature or ripe, spawn and post spawn. Gametogenesis is present all the year, except December. The spawning activity was detected all year, except July and August. The ripe phase presented maximum values in August and December. It was proposed a modification of the ban seasons from April 15 - May 30, and September 15 - October 30 to March 15 - May 15 and September 1 - October 30, respectively, according to gonadic cycle obtained in this work. This modification would to avoid capture mature organisms (ready to spawn).References
Aguilera, G.F. 1977. Contribución al conocimiento hidrológico de la laguna Mecoacán, Puerto Ceiba, Tabasco. Tesis profesional, Universidad Autónoma de Baja California, Mexicali, Baja California. 83 p.
Andrews, J.D. 1979. Pelecypoda: Ostreidae, p. 293-341. In A.C. Giese & J.S. Pearse (eds.). Reproduction of Marine Invertebrates, vol. V: Molluscs: Pelecypods and Lesser Classes. Academic, Nueva York.
Anónimo. 1999. Anuario Estadístico de Pesca 1999. Secretaría de Medio Ambiente, Recursos Naturales y Pesca (SEMARNAP), México. 235 p.
Baquiero-Cárdenas, E., A. Aviles-Quevedo, J.A. Masso-Rojas, M. Muciño-Díaz, P. Rogers-Nieto & A. Velez-Barajas. 1992. Manual de Métodos de Muestreo y Evaluación de Poblaciones de Moluscos y Otros Recursos Bentónicos. Instituto Nacional de la Pesca, México. 73 p.
Butler, P.A. 1965. Reaction of estuarine mollusks to some environmental factors, p. 92-104. In Biological Problems in Water Pollution. U.S.H.E.W., Public Health Service, Cincinnati.
Castañeda, O. & F. Contreras. (compiladores). 1994. Biblio-grafía Comentada sobre Ecosistemas Costeros Mexica-nos. Golfo de México II (de Tabasco a Quintana Roo). UAM-I, CONABIO/UAM-I/CDELM, México. 295 p.
Contreras, E.F. 1985. Las Lagunas Costeras Mexicanas. Centro de Ecodesarrollo/Secretaría de Pesca, México. 253 p.
Contreras, E.F. 1993. Ecosistemas Costeros Mexicanos. CONABIO/UAM-I, México. 415 p.
Conn, D.B. 1991. Atlas of Invertebrate Reproduction and Development. Wiley, Nueva York. 252 p.
Diego, P.M. 1986. Breve informe sobre la pesquería del ostión C. virginica en las lagunas de Tabasco. Centro de Producción Acuícola de Puerto Ceiba, Tabasco. 61 p.
Durve, V.S. 1965. On the seasonal gonadal changes and spawning in the adult oyster Crassostrea gryphoides (Schlotheim). J. Mar. Biol. Assoc. India 7: 328-344.
Eble, A.F. y R. Scro. 1996. General Anatomy. In V.S. Kennedy, R.I. E. Newell & A.F. Eble (eds.). The Eastern Oyster Crassostrea virginica. Maryland Sea Grant College, Maryland. 734 p.
Galaviz, S., A.M. Gutiérrez & A. Castro. 1987. Morfolo-gía, sedimentos e hidrodinámica de las lagunas Dos Bocas y Mecoacán, Tabasco, México. An. Inst. Cienc. Mar Limnol. UNAM. 14: 109-123.
Galtsoff, P.S. 1964. The American oyster Crassostrea virginica Gmelin. US. Department of the Interior Fish and Wildlife Serv. 64: 480 p.
García-Domínguez, F., B.P. Ceballos-Vázquez, M. Villalejo-Fuerte & M. Arellano-Martínez. 1998. Re-productive cycle of the giant reef clam Periglypta multicostata (Sowerby, 1835) (Pelecypoda: Vener-idae) at Isla Espíritu Santo, Baja California Sur, México. J. Shellfish Res. 17: 1009-1013.
George, Z.A. & D. Aldana-Aranda. 2000. Producción somática de dos especies: Crassostrea virginica e Ischadium recurvum (Bivalvia) en Mecoacán, Tabas-co, México. Rev. Biol. Trop. 48. Supl. 1: 65-75.
Giese, A.C. & J.S. Pearse. 1979. Introduction: general principles, p. 1-49. In A. C.G. Giese & J.S. Pearse (eds.). Reproduction of Marine Invertebrates, vol. 1. Academic, Nueva York.
Howard, D. W. & C.S. Smith. 1983. Histological tech-niques for marine bivalve mollusks. NOAA Tech. Memo, NMFS-F/NEC-25. 64 p.
Ingle, R.M. 1951. Spawning and setting of oysters in relation to seasonal environmental changes. Bull. Mar. Sci. Gulf Carib. 1: 111-135.
Joshep, M.M. & M.N. Madhyastha. 1984. Annual repro-ductive cycle and sexuality of the oyster Crassostrea madrasensis (Preston). Aquaculture 40: 223-231.
Kennedy, A.U. & H.I. Battle. 1964. Cyclic changes in the gonad of the american oyster, Crassostrea virginica (Gmelin). Can. J. Zool. 42: 305-321.
Kennedy, V.S. & L.B. Krantz. 1982. Comparative gameto-genic and spawning patterns of the oyster Crassostrea virginica (Gmelin) in central Chesapeake Bay. J. Shellfish Res. 2: 133-140.
Kennedy, V.S., R.I.E. Newell & A.F. Eble (eds.). 1996. The Eastern Oyster Crassostrea virginica. Maryland Sea Grant College, Maryland. 734 p.
Loosanoff, V.L. 1965. Gonad development and discharge of spawn in oysters of Long Island Sound. Biol. Bull. 129: 546-561.
Luna, L.G. 1968. Manual of Histological Staining Methods of the Armed Forces Institute of Pathology. McGraw-Hill, Nueva York. 250 p.
Martínez, I., D. Aldana, T. Brulé & E. Cabrera. 1995. Crecimiento y desarrollo gonadal del ostión Crassostrea virginica (Gmelin, 1791) (Mollusca: Ostreidae), en la Península de Yucatán, México. Avicennia 3: 61-75.
Rodríguez, N.R., J.E. Aguilar, M. Chávez, A.E. Contreras, M.L. Reyes & J. Aguilera. 1994. Cultivo de ostión ame-ricano. Secretaría de Pesca (SEPESCA), México. 36 p.
Sevilla, M.L. 1993. Las Ostras de México. Limusa-Noriega, México. 165 p.
Thompson, R.J., R.I. E. Newell, V.S. Kennedy & R. Mann. 1996. Reproductive Processes and Early Development. p. 335-370. In V.S. Kennedy, R.I.E. Newell y A.F. Eble (eds.). The Eastern Oyster Crassostrea virginica. Maryland Sea Grant College, Maryland. 734 p.
Zar, J.H. 1984. Biostatistical Analysis. Prentice-Hall, Nueva Jersey. 718 p.
Comments
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2003 Revista de Biología Tropical