Size Composition, Distribution, Length-Weight Relationship And Natural Food Of The Blue Crab, Portunus Pelagicus (L.) In Selected Coastal Waters In Leyte And Vicinity, Philippines

Bernardita  C. Pilapil,; Corazon  B. Batoy,; Josephine  F. Sarmago,

Size Composition, Distribution, Length-Weight Relationship And Natural Food Of The Blue Crab, Portunus Pelagicus (L.) In Selected Coastal Waters In Leyte And Vicinity, Philippines

Corazon B. Batoy | Bernardita C. Pilapil | Josephine F. Sarmago

Abstract:

Female blue crabs were relatively smaller than males. More smaller crabs (carapace lengths < 50 mm) were observed in January, April and July in consonance with reported intense spawning periods.

References:

BAINBRIDGE, R. 1961. Migrations. In: The Physiology of Crustacea. Vol. II. T. H. Waterman (ed.). Academic Press, New York. 200 p.
ΒΑ蝿ΓΟΥ, C.B., SARMAGO, J.F. and PILAPIL, B.C. 1987. Breeding, sexual maturity and fecundity of the blue crab, Portunus pelagicus (L.) in selected coastal waters in Leyte and vicinity, Philippines. Ann. Trop. Res. 9(3):157-177.
DHAWAN, R.M., DWIVEDI, S.N. and RAJAMANICKAM, G.V. 1976. Ecology of the blue crab Portunus pelagicus (L.) and its potential fishery in Zuari Estuary. Indian J. Fish. 23(1-2):57-64.
HILL, B.J. 1979. Aspects of the feeding strategy of the predatory crab, Scylla serrata. Marine Biology 55:209-214.
袦袨孝袨袧, 袧. 1980. Field Guide of the Edible Crustacea of the Philippines. SEAFDEC Aquacul-ture Dept., Iloilo, Phil. pp. 72-73.
PAULY, D. 1983. Some simple methods for the assessment of tropical fish stocks. FAO Fish. Tech.Paper 234:52.
PILLAY, K.K. and NAIR, N.B. 1971. The annual reproductive cycles of Uca annulipes, Portunus pelagicus and Metapenaeus affinis (Decapoda:Crustacea) from the southwest coast of India Marine Biology 11:152-166.
POTTER, I.C., CHRYSTAL, P.J. and LONERAGAN, N.R. 1983. The biology of the blue manna crab, Portunus pelagicus in an Australian estuary. Marine Biology 78:75-85.
PULLEN, E.J. and TRENT, W.L. 1970. Carapace width and total weight relationship of blue crabs from Galveston Bay, Texas. Trans. Am. Fish. Soc. 4:795-798.
RYAN, E.P. 1967. Structure and function of the reproductive system of the crab, Portunus sanguinolentus (Herbst) (Brachyura: Portunidae) II. The female system. Proc. Symp. Crustacea. Mar. Biol. Assoc. India. January 12-15, 1965, Ernakulam. pp. 522-544.
STEEL, R.G.D. and TORRIE, J.H. 1960. Principles and Procedures of Statistics. McGraw-Hill Book Co., New York. pp. 161-182.
TRESSLER, D.K. and LEMON, J.M. 1951. Marine Products of Commerce. Reinhold, New York.
WARNER, G.F. 1977. The Biology of Crabs. Unwin Bro. Ltd. The Gresha, London. pp. 119-194.
WILLIAMS, M.J. 1981. Methods for analysis of natural diet in portunid crabs (Crustacea: Decapoda: Portunidae). J. Exptl. Mar. Biol. Ecol. 52:103-113.