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Population dynamics and reproductive aspects of the decorator crab Microphrys bicornutus (Crustacea: Brachyura: Majidae) in an extreme shallow Thalassia complex

Published online by Cambridge University Press:  05 July 2012

C.A. Carmona-Suárez*
Affiliation:
Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Carretera Panamericana, km 11, Altos de Pipe, Miranda 1204, Venezuela
*
Correspondence should be addressed to: C.A. Carmona-Suárez, Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Carretera Panamericana, km 11, Altos de Pipe, Miranda 1204, Venezuela email: ccarmona@ivic.gob.ve

Abstract

The decorator crab, Microphrys bicornutus, is a common inhabitant of the turtle grass Thalassia testudinum. In order to establish the behaviour of a population of this species in an extreme shallow Thalassia complex (maximum depth less than 50 cm, and often exposed to the air), size distribution, population dynamics, reproductive effort and egg size were studied in Buchuaco—Venezuela. Monthly sampling was undertaken between June 1988 and December 1990. A total of 1403 specimens of M. bicornutus were captured. In each of the sampled years, size distribution was strongly skewed to the predominance of small size crabs. Females were significantly larger than males in all the three years. Small size and large size crabs showed periodic annual fluctuations in abundance, with peaks during the last months of the year for the first, and peaks between April and June for the latter. Medium size crabs showed no periodicity at all. Number of eggs per female ranged between 40 and 4305 (mean = 1067.4), and was positively correlated with female body size. Eggs increased their size gradually during their development, and differences in egg size between development stages were significant. The biological parameters found in this study are compared with other populations of this crab, found in Venezuela and Brazil, in different ecosystems. Results acquired in this work add new insights to the behaviour of this decorator crab, specifically on density variation and egg size (among others), living in an environment that is constantly exposed to air and to other physicochemical variations.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2012

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References

REFERENCES

Anderson, M.J. (2005) PERMANOVA: a FORTRAN computer program for permutational multivariate analysis of variance. Aukland, New Zealand: Department of Statistics, University of Auckland.Google Scholar
Baeta, A., Cabral, H.N., Neto, J.M., Marques, J.C. and Pardal, M.A. (2005) Biology, population dynamics and secondary production of the green crab Carcinus maenas (L.) in a temperate estuary. Estuarine, Coastal and Shelf Science 65, 4352.CrossRefGoogle Scholar
Bas, C., Luppi, T. and Spivak, E. (2005) Population structure of the South American estuarine crab, Chasmagnathus granulatus (Brachyura: Varunidae) near the southern limit of its geographical distribution: comparison with northern populations. Hydrobiologia 537, 217228.CrossRefGoogle Scholar
Batista, J.B., Leonel, R.M.V. and Costa, M.A.J. (2009) Características populacionais de Microphrys bicornutus (Brachyura, Mithracidae) no fital de Halimeda opuntia (Chlorophyta, Halimedaceae), em área recifal submetida à visitação humana, em João Pessoa, Paraíba. Iheringia Série Zoologia 99, 4452.CrossRefGoogle Scholar
Briones-Fourzán, P., Castañeda-Fernández de Lara, V., Lozano-Álvarez, E. and Estrada-Olivo, J. (2003) Feeding ecology of the three juvenile phases of the spiny lobster Panulirus argus in a tropical reef lagoon. Marine Biology 142, 855865.CrossRefGoogle Scholar
Carmona-Suárez, C.A. (1984) Biologie der kleinen Seespinne Maja verrucosa (Decapoda, Majidae). PhD thesis. University of Vienna, Austria.Google Scholar
Carmona-Suárez, C.A. (1992) Interpopulation size variation in a tropical decorator crab, Microphrys bicornutus (Latreille, 1825) (Decapoda, Brachyura, Majidae). Crustaceana 63, 319322.CrossRefGoogle Scholar
Carmona-Suárez, C.A. (2002) Population ecology of the decorator crab Maja crispata (Risso 1827) (Crustacea: Brachyura: Majidae) in the Tyrrenean Sea. In Bright, M., Dvorschak, P.C. and Stachowitsch, M. (eds) The Vienna School of Marine Biology. A tribute to Jörg Ott. Vienna, Austria: Facultas Universität Wien, pp. 5361.Google Scholar
Carmona-Suárez, C.A. (2003) Reproductive biology and relative growth in the spider crab Maja crispata (Crustacea: Brachyura: Majidae). Scientia Marina 67, 7580.CrossRefGoogle Scholar
Carmona-Suárez, C.A. (2007) Spatial distribution, density and relative growth of Microphrys bicornutus (Latreille, 1826) (Brachyura: Majidae) in five biotopes in a Thalassia complex. Scientia Marina 71, 514.Google Scholar
Carmona-Suárez, C.A. and Conde, J.E. (1996) Littoral brachyuran crabs (Crustacea: Decapoda) from Falcón, Venezuela, with biogeographical and ecological remarks. Revista Brasilera de Biologia 56, 725747.Google Scholar
Castaño, N.C. and Campos, N.H. (2003) Los cangrejos araña (Decapoda: Brachyura: Majoidea) del Caribe colombiano. Biota Colombiana 4, 261269.Google Scholar
Díaz-Piferrer, M. (1967) Efectos de las aguas de afloramiento en la flora marina de Venezuela. Caribbean Journal of Science 7, 113.Google Scholar
Gutiérrez-Salcedo, J.M, Aguilar-Pérez, M.I., Bermúdez, A., Campos, N.H. and Navas-S, G.R. (2007) Invertebrate macrofaunal structure present in nests of Malacanthus plumieri (Bloch, 1786) (Perciformes: Malacanthidae) in Nenguange Bay, Tayrona Natural Park, Colombian Caribbean Sea. Caldasia 29, 309328.Google Scholar
Hartnoll, R.G. (1965) The biology of spider crabs: a comparison of British and Jamaican species. Crustaceana 9, 116.CrossRefGoogle Scholar
Heck, K.L. Jr (1977) Comparative species richness, composition, and abundance of invertebrates in Caribbean seagrass (Thalassia testudinum) meadows (Panama). Marine Biology 41, 335348.Google Scholar
Heck, K.L. Jr and Weinstein, M.P. (1989) Feeding habits of juvenile reef fishes associated with Panamanian seagrass meadows. Bulletin of Marine Science 45, 629636.Google Scholar
Hernández-Reyes, I.M., Palazón-Fernández, J.L., Bolaños-Curvelo, J.A. and Hernández, J.E. (2001) Aspectos reproductivos de Mithrax forceps (A. Milne Edwards, 1875) (Crustacea: Decapoda: Majidae). Ciencias Marinas 27, 2134.CrossRefGoogle Scholar
Hines, A.H. (1982) Allometric constraints and variables of reproductive effort in brachyuran crabs. Marine Biology 69, 309320.Google Scholar
Holmquist, J.G., Powell, G.V.N. and Sogard, S.M. (1989) Decapod and stomatopod assemblages on a system of seagrass-covered mud banks in Florida Bay. Marine Biology 100, 473483.Google Scholar
Lahey, J.F. (1973) On the origin of the dry climate in northern South America and the southern Caribbean. In Amiran, D.H. and Wilson, A.W. (eds) Coastal deserts: their natural and human environments. Tucson, AZ: University of Arizona Press, pp. 7590.Google Scholar
Lardies, M.A. and Castilla, J.C. (2001) Latitudinal variation in the reproductive biology of the commensal crab Pinnaxodes chilensis (Decapoda: Pinnotheridae) along the Chilean coast. Marine Biology 139, 11251133.Google Scholar
Lemaitre, R. (1981) Shallow-water crabs (Decapoda: Brachyura) collected in the southern Caribbean near Cartagena, Colombia. Bulletin of Marine Science 31, 234266.Google Scholar
Litulo, C. (2005) Population structure and breeding biology of the hairy crab Pilumnus vespertilio (Fabricius, 1793) (Crustacea: Brachyura: Pilumnidae) in southern Mozambique. Journal of Natural History 39, 13591366.CrossRefGoogle Scholar
López-Greco, L.S., Hernández, J.E., Bolaños, J., Rodríguez, E.M. and Hernández, G. (2000) Population features of Microphrys bicornutus Latreille 1825 (Brachyura, Majidae) from Isla Margarita, Venezuela. Hydrobiologia 439, 151159.Google Scholar
Marcano, J. and Bolaños, J. (2001) Cangrejos májidos (Decapoda: Brachyura: Majidae) de las aguas someras marinas venezolanas. Boletín del Instituto Oceanográfico de Venezuela, Universidad de Oriente 40, 7182.Google Scholar
Matheson, R.E. Jr, Sogard, S.M. and Bjorgo, K.A. (1999) Changes in seagrass-associated fish and crustacean communities on Florida Bay mud banks: the effects of recent ecosystem changes? Estuaries 22, 534551.CrossRefGoogle Scholar
Pearse, A.S. (1950) Notes on the inhabitants of certain sponges at Bimini. Ecology 31, 149151.Google Scholar
Randall, J.E. (1967) Food habits of reef fishes of the West Indies. Studies on Tropical Oceanography, Miami 5, 665847.Google Scholar
Reyes, R. and Campos, N.H. (1992) Macroinvertebrados colonizadores de raíces de Rhizophora mangle en la bahía de Chengue, Caribe colombiano. Anales del Instituto de Investigaciones Marinas Punta de Betín 21, 101116.Google Scholar
Sokal, R.R. and Rohlf, F.J. (1995) Biometry: the principles and practice of statistics in biological research. 3rd edition. New York: W.H. Freeman & Co.Google Scholar
Teixeira, G.M., Fransozo, V., Cobo, W.J. and Hiyodo, C.M. (2009) Population features of the spider crab Acanthonyx scutiformis (Dana, 1851) (Crustacea, Majoidea, Epialtidae) associated with rocky-shore algae from southeastern Brazil. Pan-American Journal of Aquatic Science 4, 8795.Google Scholar
Williams, A.B. (1984) Shrimps, lobsters and crabs of the Atlantic coast of the eastern United States, Maine to Florida. Washington, DC: Smithsonian Institution Press.Google Scholar