Length-weight relationship and relative condition of grey mullet, Mugil cephalus L.

H.P. Das

Abstract



The length-weight relationship and the relative condition were studied in the grey mullet, Mugil cephalus. The relationship between length and weight was found to be like that of a parabola and did not change significantly as the fish grew. The fluctuations in the relative condition gave an indication of the size of fish at first maturity and the commencement of breeding season. The seasonal and other fluctuations in the relative condition are greatly influenced by the changes in weight. The increase in K values in both the sexes during January to March probably show high feeding intensity during the post-spawning period. Similarly, the decrease in K values in both the sexes from September to December indicates the spawning season of the fish

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