Influência dos fatores ambientais na abundância de Portunus spinimanus latreille, 1819 (Crustacea, Brachyura, Portunidae) na região de Ubatuba (SP)
Keywords:Crustacea, Portunidae, environmental factors, Brazillian coast
This work aimed to study the environmental factors influence on P. spinimanus abundance in the sublittoral sediments of Fortaleza bay, Ubatuba (SP). The collects were made during one year, from November/1988 to Octuber/1989, with a shrimp fishery boat equipped with 2 otter-trawl. Temperature, salinity, depth, dissolved oxygen content, organic material amount of the sediment and its granulometric composition were the environment factors sampled. The procedure adopted here consisted in to distribute the environment factors results in strata, to determine the values frequency and the number of captured individuals in each stratum though the 84 samples. The transformed abundance index was calculated by means the formula A = Ln(x+1), where, x = mean number of individuals and Ln = reperian logarithm. The abundance index tended to increase with the temperature elevation and it was high in 31.6 to 33.2% of salinity. The abundance index for both dissolved oxygen and organic material contents were characterized by normal curve. The individuals were abundant in the first two strata of depth. With relation to granulometric fraction, the animals were more abundant in subareas with gravel and very coarse sand than the others. Based on this results and field observations it can be concluded that the presence of P. spinimanus is associated to a group of environment factors among them the texture (gravel and very coarse sand) and to protected sites in the bay, characterized by a relatively calm water.
BUCHANAN, B. A; STONER, A W. Distribution patterns of blue crabs (Callinectes sp.) in a tropical estuarine lagoon. Estuaries, v. 11, n. 4, p. 231-239,1988.
CAMP, D. K.; WHAITING, N. H.; MARTIN, R. E. Nearshore marine ecology
at Hutchinson Island Florida 1971-1974. V. Arthropods. Fia. Mar. Res.
Publ., v. 25, p.1-63, 1977.
DHAWAN, R. J.; DWIVED, S. N.; RAJAMANICKAM, G. V. Ecology of the blue
crab Portunus pelagicus (L.) and its potential fishery in Zuari Estuary. Indian J. Fish., v. 23, n. 1/2, p.57- 64, 1976.
DUDLEY, D. L.; JUDY, M. H. Occurrence of larval, juvenile, and mature crabs in the vicinity of Beaufort Inlet, North Carolina. NOAA Tech. Rep. NMFS/SSRF, v. 637, p.1-10, 1971.
GOLTERMAN, H. L.; CLYMO, R. S. Methods for chemical analysis of freshwaters. Oxford: Blackwell, Scientific Publications, 1969. 116p.
GRAY, I. E. A comparative study of the gill area of crabs. Biol. Bull., v. 112,
n.1, p.34-42, 1957.
HAEFNER JR., PA Distribution, reproductive and molting of the rock crab,
Cancer irroratus Say, 1917, in the mid-Atlantic bigh. J. Nat. Hist., v. 10, p.377-397,1976.
MAGLlOCCA, A.; A S. KUTNER. Sedimentos de fundo da Enseada do Flamengo - Ubatuba. Publ. n. 198 do Inst. Oceano da USP. P. 1-14, 1965.
MELO, G. A S. Manual de identificação dos Brachyura (caranguejos e
siris) do litoral brasileiro. São Paulo: Editora Plêiade, 1996. 603p.
NEGREIROS-FRANSOZO, M. L.; FRANSOZO, A; PINHEIRO, M. A. A.; MANTELATTO, F. L. M.; SANTOS, S. Caracterização física e química da Enseada da Fortaleza, Ubatuba, SP. Rev. Bras. Geoc., V. 21, n. 2, p.114-120, 1991.
NONATO, E. F.; PETTI, M. A. V.; PAIVA, P. C. Contribuição dos anelídeos
poliquetas na dieta de crustáceos decápodos braquiúros da região de
Ubatuba. In: SIMPÓSIO DE ECOSSISTEMAS DA COSTA SUL E SUDESTE BRASILEIRA, Águas de Lindóia, 1990. Anais... São Paulo: Academia Paulista de Ciências, V. 1, p.224-234.
NORSE, E. A.; ESTEVEZ, M. Studies on portunid crabs from the eastern
Pacifico I. Zonation along environment stress gradients from the coast of
Colombia. Mar. 8iol., V. 40, p. 365-373, 1977.
PAUL, R. K. G. Observations on the ecology and distribution of swimming
crabs of the genus Callinectes (Decapoda, Brachyura, Portunidae) in the
gulf of California, Mexico. Crustaceana, V. 42, n. 2, p.96-100, 1982.
PITA, J. B.; RODRIGUES, E. S.; GRAÇA-LOPES, R; COELHO, J. A. P.
Observações bioecológicas sobre o siri Callinectes danae Smith, 1869 (Crustacea, Portunidae) no complexo baía-estuário de Santos, Estado de São Paulo, Brasil. 801. Inst. Pesca, V. 12, n. 4, p.35-43, 1985.
POTTER, I. C.; CHRYSTAL, P. J.; HONERAGAN, N. The biology of the blue
manna crab Porlunus pelagicus in a Australian estuary. Mar. 8iol., V. 78, p.75-85,1983.
POWERS, L. W. Crabs (Brachyura) of the gulf of the Mexico. Contr. Mar.
Sei. (Supl.), V. 20, p.1-190, 1977.
TAISSOUN, E. N. Biogeografía y ecologia de los cangrejos de Ia família Portunidae (Crustáceos, Decápodos, Brachyura) en Ia costa Atlântica de América. 801n. Centro Invest. 8101.Univ. Zulia, Maracaibo, V. 7, p.7-23, 1973a.
TAISSOUN, E. N. Las especies de cangrejos dei genero Callinectes (Brachyura) en el golfo de Venezuela y Lago de Maracaibo. 801n. Cent. Invest. 8101.Univ. Zulia Maracaibo, V. 2, p.1-102, 1973b.
WENTHWORTH, C. K. A scale of grade and class terms for clastic sediments. J. Geol., V. 30, p.377-392, 1922.
WILLIAMS, A. B. Shrimps, lobsters and crabs of the Atlantic Coast of the eastern United States, Maine to Florida. Washington: Smithsonian Institution Press, 1984. 550p.
WILLIAMS, M. J. Natural food and feeding in the commercial sand crab Porlunus pelagicus (L. 1766) (Crustacea, Decapoda, Portunidae) in Moreton Bay, Queensland. J. Exp. Mar. 8101. Ecol., V. 59, p.165-179, 1982.
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