Life Cycle and Biology of Portunid Crabs

Josileen, Jose (2015) Life Cycle and Biology of Portunid Crabs. [Teaching Resource]

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Abstract

In crustaceans, as growth progresses, certain dimensions of the animal’s body may grow much more than others, resulting in the phenomenon known as relative growth (Hartnoll, 1974). Studies of relative growth are often used to determine changes in the form and size of the abdomen, pleopods, or chelipeds during ontogeny. Knowledge of these distinguishing characters and size relationships in sexually mature individuals is of particular importance in the study of commercially valuable crustaceans. Such knowledge can be useful for further studies on the life history of the species and in the development of its fishery, resource management, and culture. The mathematical length-weight relationship thus yields information on the general well-being of individuals, variation in growth according to sex, size at first maturity, gonadal development, and breeding season.

Item Type:	Teaching Resource
Uncontrolled Keywords:	Life Cycle; Biology; Portunid Crabs
Subjects:	Crustacean Fisheries > Crabs Marine Biology > Biology
Divisions:	CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	23 Jun 2015 06:14
Last Modified:	09 Sep 2015 16:01
URI:	http://eprints.cmfri.org.in/id/eprint/10419

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