Growth of the blue swimmer crab, Portunus pelagicus (Linnaeus, 1758) (Decapoda, Brachyura) in captivity

Josileen, Jose and Menon, N G (2005) Growth of the blue swimmer crab, Portunus pelagicus (Linnaeus, 1758) (Decapoda, Brachyura) in captivity. Crustaceana, 78 (1). pp. 1-18.

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Abstract

The growth of hatchery produced Portunus pelagicus crabs was monitored under laboratory conditions by recording growth at each moult from the 1st crab instar onwards. Male and female crabs attained sexual maturity by their 12th and 14th moult, respectively. The experiment lasted for 455 days when the last crab died. This paper describes the growth of male and female crabs in each moulting stage, with details of their carapace width and length, chelar length and height, abdominal width and length, and total weight. Moulting frequency, secondary sexual characteristics, and moult increments were also monitored. VBGF (Von Bertalanffy Growth Formula) fit was obtained using the methods of Gulland & Holt (1959), Fabens (1965), and Munro (1982). The L∞ values calculated by the different methods ranged between 204.1 and 219.8 mm in males, and between 188.6 and 211.8 mm in females.

Item Type:Article
Uncontrolled Keywords:Growth of the blue swimmer crab, Portunus pelagicus (Linnaeus, 1758) (Decapoda, Brachyura) in captivity
Subjects:Crustacean Fisheries > Crabs
Divisions:CMFRI-Cochin > Marine Capture > Crustacean Fisheries
ID Code:1250
Deposited By:Dr. V Mohan
Deposited On:25 Jun 2010 16:06
Last Modified:08 Jul 2010 13:01

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