Some observations on the biology of the blotched Croaker Nibea maculata (schneider, 1801) from Mandapam

Jayasankar, P (1989) Some observations on the biology of the blotched Croaker Nibea maculata (schneider, 1801) from Mandapam. Indian Journal of Fisheries, 36 (4). pp. 299-305.

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Abstract

Some aspects of the biology of NQ>ea maculata from Mandapam waters are studied. Regression coefficients in the length-weight relationships of females and males of N. macutala show significant difference between them and both significantly differ from the cubic value. The spawning season is from April to August and the females appear to perform two spawning acts during this period. Relative condition factor is apparently related to the reproductive cycle. Females and males attain first maturity at 185 and 167 mm, respectively. Fecundity show wide fluctuations from 21,584 to 475,043 with high correlation to ovary weight. Overall sex-ratio shows predominance of females.

Item Type: Article
Uncontrolled Keywords: Fish biology; Nibea maculata; Mandapam
Subjects: Fish and Fisheries > Fish biology
Divisions: CMFRI-Cochin > Marine Capture > Demersal Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Demersal Fisheries

CMFRI-Cochin > Physiology and Nutrition Pathology
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Physiology and Nutrition Pathology
Depositing User: Dr. V Mohan
Date Deposited: 30 Mar 2010 11:15
Last Modified: 09 Sep 2015 15:06
URI: http://eprints.cmfri.org.in/id/eprint/319

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