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Abstract:

The aim of this study is to characterize the population biology (sex ratio, size structure, relative growth of reproductive characters and realised fecundity) of the crab Microphrys bicornutus from Isla Margarita, Venezuela. Nearly 100 crabs were collected and fixed monthly during 1998. In the laboratory, crabs were sexed and measured: Maximum carapace length, chelae length, chelae and abdomen width for females and first pleopod length for males. Additionally, 96 ovigerous females were collected to determine fecundity. The following measurements were taken for each female: body wet weight (BWW), body dry weight (BDW), egg wet weight (EWW), egg dry weight (EDW) and number of eggs (NE). The following determinations were made: relative fecundity (RF) = NE/BDW and reproductive output (RO) = (EDW/BDW) × 100. Relative size at the onset of maturity (RSOM) was calculated as minimum ovigerous female/female's maximum size. The results indicate that the sex ratio is nearly 1:1 during the entire year. Ovigerous females and moulted males and females were observed throughout the year. Size frequency distribution and size at the onset of sexual maturity, estimated by relative growth of the sexual secondary characters and RSOM value, differed from those estimated in studies done in Jamaica and Buchuaco, Venezuela.

Registro:

Documento: Artículo
Título:Population features of Microphrys bicornutus latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela
Autor:López Greco, L.S.; Hernández, J.E.; Bolaños, J.; Rodríguez, E.M.; Hernández, G.
Filiación:Department of Biological Sciences, University of Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Laboratorio de Carcinología, Escuela de Ciencias Aplicadas al Mar, Universidad de Oriente, Boca de Río, Isla Margarita, Venezuela
Palabras clave:Realised fecundity; Relative growth; Size structure; crab; population dynamics; population ecology; reproductive behavior; Venezuela
Año:2000
Volumen:439
Página de inicio:151
Página de fin:159
DOI: http://dx.doi.org/10.1023/A:1004130621093
Título revista:Hydrobiologia
Título revista abreviado:Hydrobiologia
ISSN:00188158
CODEN:HYDRB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v439_n_p151_LopezGreco

Referencias:

  • Amaro Pinheiro, M.A., Fransozo, A., Sexual maturity of the specked swimming crab Aranaeus cribrarius (Lamarck, 1818) (Decapoda, Brachyura, Portunidae), in the Ubatuba littoral (1998) Crustaceana, 71, pp. 434-452. , São Paulo State, Brazil
  • Bas, C., Sardà, F., Long-term morphometric variations in a population of deep-sea shrimp Aristeus antennatus (Risso, 1816) (Decapoda, Aristeidae) (1998) Crustaceana, 71, pp. 369-377
  • Carmona-Suárez, C., Interpopulational size variation in a tropical decorator crab, Microphys bicornutus (Latreille, 1825) (Decapoda, Brachyura, Majidae) (1992) Crustaceana, 63, pp. 319-322
  • Carmona-Suárez, C., Conde, J., Litoral brachyuran crabs (Crustacea: Decapoda) from Falcón, Venezuela, with biogeographical and ecological remarks (1996) Rev. Brasil. Biol., 56, pp. 725-727
  • Cervigón, F., Gómez, A., (1986) Las Laguna Litorales de la Isla de Margarita. Sus Recursos y su conservación, , Publicación del Centro de Investigaciones Científicas, Universidad de Oriente, Núcleo de Nueva Esparta: 88 pp
  • Charnov, E.L., Relative size at the onset of maturity (RSOM) is an interesting number in crustacean growth (Decapoda, Pandalidae) (1990) Crustaceana, 59, pp. 108-109
  • Conde, J.E., Díaz, H., Crecimiento reducido en el cangrejo del mangle Aratus pisonii (H. Milne Edwards) (Brachyura, Grapsidae) (1989) Acta Cient. Venez., 40, pp. 159-160
  • Conde, J.E., Díaz, H., Variations in intraspecific relative size at the onset of maturity (RSOM) in Aratus pisonii (H. Milne Edwards, 1837) (Decapoda, Brachyura, Grapsidae) (1992) Crustaceana, 62, pp. 214-216
  • Conde, J.E., Tognella, M.P., Paes, E.T., Soares, M.L., Louro, I.A., Schaeffer-Novelli, Y., Population and life history features of the crab Aratus pisonii (Decapoda: Grapsidae) in a subtropical estuary (2000) Interciencia, (25), pp. 151-158
  • Fukui, Y., Comparative studies on the life history of the grapsid crabs (Crustacea, Brachyura) inhabiting intertidal cobble and boulder shores (1988) Publ. Seto Mar. Biol. Lab., 33, pp. 121-162
  • Gore, R.H., Scotto, L.E., Yang, W.T., Microphys bicornutus (Latreille, 1825): The complete larval development trader laboratory conditions with notes of other Mithracinae larvae (Decapoda: Brachyura: Majidae) (1982) J. Crust. Biol., 2, pp. 514-534
  • Graterol, K.E., (1994) Descripción de las zoeas de M. bicornutus (Latreille, 1825) (Crustacea: Decapoda: Majidae) de los alrededores de la boca de la Laguna de La Restinga, Isla de Margarita, , Tesis de grado: 24 pp
  • Hartnoll, R.G., The biology of spider crabs: A comparison of British and Jamaican species (1965) Crustaceana, 9, pp. 1-16
  • Hartnoll, R.G., Variation in growth pattern between some secondary sexual characters in crabs (Decapoda, Brachyura) (1974) Crustaceana, 27, pp. 131-136
  • Hartnoll, R.G., The determination of relative growth in crustacea (1978) Crustaceana, 34, pp. 281-293
  • Hazlett, B.A., Responses to agonistic postures by the spider crab Microphrys bicornutus (1972) Mar. Behav. Physiol., 1, pp. 85-92
  • Higgins, K., Hastings, A., Sarvela, J., Bolsford, L.W., Stochastic dynamics and deterministic skeletons: Population behavior of Dungeness crab (1997) Science, 276, pp. 1431-1435
  • Hines, A.H., Allometric constraints and variables of reproductive effort in brachyuran crabs (1982) Mar. Biol., 69, pp. 309-320
  • Hines, A.H., Fecundity and reproductive output in two species of deep-sea crabs, Geryon fenneri and G. quinquedens (Decapoda: Brachyura) (1988) J. Crust. Biol., 8, pp. 557-562
  • Hines, A.H., Geographic variations in size at maturity in brachyuran crabs (1989) Bull. Mar. Sci. Univ. Miami, 45, pp. 356-368
  • Jewett, S.C., Sloan, N.A., Somerton, D.A., Size at sexual maturity and fecundity of the Fjord-dwelling golden king crab Lithodes aequispina Benedict from northern British Columbia (1985) J. Crust. Biol., 5, pp. 377-385
  • Jones, M.B., Simmons, M.J., Latitudinal variation in reproductive characteristics of a mud crab, Helice crassa (Grapsidae) (1983) Bull. Mar. Sci., 33, pp. 656-669
  • López Greco, L.S., (1999) Chasmagnathus granulata y el valor constante de la talla relativa de madurez sexual (RSOM) dentro de la familia Grapsidae, , Proccedings of "IV Taller de Cangrejos y Cangrejales, Buenos Aires, Argentina": 47 pp
  • López Greco, L.S., Rodríguez, E.M., Size at the onset of sexual maturity in Chasmagnathus granulatus DANA, 1851 (Grapsidae, Sesarminae): A critical overall view about the usual criteria for its determination (1999), pp. 675-689. , Schram F. R. & J. C. Von Vaupel Klein (eds), Crustaceans and the Biodiversity Crisis. Brill, Leiden; López, L.S., Stella, V.S., Rodríguez, E.M., Size at the onset of the sexual maturity in Chasmagnathus granulata (Decapoda, Brachyura) (1997) Nauplius, 5, pp. 65-75
  • Negreiros-Fransozo, M.L., Fransozo, A., Reigada, A.L., Biologia populacional de Epialtus brasiliensis Dana, 1852 (Crustacea, Majidae) (1994) Rev. Brasil. Biol., 54, pp. 173-180
  • Somerton, D.A., A computer technique for estimating the size of sexual maturity in crabs (1980) Can. J. Fish. Aquat. Sci., 37, pp. 1488-1494
  • Somerton, D.A., MacIntosh, R.A., The size at sexual maturity of blue king crab, Paralithodes platypus, in Alaska (1983) Fish. Bull., United States, 81, pp. 621-628
  • Steachey, D.P., Sommers, K.M., Potential, realized and actual fecundity in the crayfish Orconectes immunis from southwestern Ontario (1995) Can. J. Zool., 73, pp. 672-677
  • Thorson, G., Reproductive and larval ecology of marine bottom invertebrates (1950) Biol. Rev., 25, pp. 1-45

Citas:

---------- APA ----------
López Greco, L.S., Hernández, J.E., Bolaños, J., Rodríguez, E.M. & Hernández, G. (2000) . Population features of Microphrys bicornutus latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela. Hydrobiologia, 439, 151-159.
http://dx.doi.org/10.1023/A:1004130621093
---------- CHICAGO ----------
López Greco, L.S., Hernández, J.E., Bolaños, J., Rodríguez, E.M., Hernández, G. "Population features of Microphrys bicornutus latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela" . Hydrobiologia 439 (2000) : 151-159.
http://dx.doi.org/10.1023/A:1004130621093
---------- MLA ----------
López Greco, L.S., Hernández, J.E., Bolaños, J., Rodríguez, E.M., Hernández, G. "Population features of Microphrys bicornutus latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela" . Hydrobiologia, vol. 439, 2000, pp. 151-159.
http://dx.doi.org/10.1023/A:1004130621093
---------- VANCOUVER ----------
López Greco, L.S., Hernández, J.E., Bolaños, J., Rodríguez, E.M., Hernández, G. Population features of Microphrys bicornutus latreille, 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela. Hydrobiologia. 2000;439:151-159.
http://dx.doi.org/10.1023/A:1004130621093