Spawning Biology of Gerresjilamentosus Cuvier in the Cochin Estuary
89 / 41
Authors
-
Madhusoodana Kurup B.
Department of lndustrial Fisheries , Cochin University of Science and Technology
-
Samuel C.T.
Department of lndustrial Fisheries , Cochin University of Science and Technology
Abstract
The maturation and spawning of Gerres filamentosus Cuvier in the Cochin estuary was studied from January to December 1980. The spawning season extends from October to February. Relatively high Gondosomatic index values were observed from October to February. The fully ripe ovary is characterised with three batches of matured eggs which are not sharply differentiated among themselves and hence it is inferred that they may spawn in three successive batches within the same prolonged spawning season itself. Size at first maturity of males and females were respectively 117 and 118 mm SL. The sex ratio was significantly different in January, March, June and November andthe mean ratio of males to females were 1:11.39. Fecundity of the species varied from 64,278 to 3,87,576 eggs.Downloads
Download data is not yet available.
Downloads
Submitted
2012-12-12
Published
2025-06-09
Issue
Section
Articles
License
Copyright rests with the Society of Fisheries Technologists (India).How to Cite
B., M. K., & C.T., S. (2025). Spawning Biology of Gerresjilamentosus Cuvier in the Cochin Estuary. Fishery Technology, 28(1). https://doi.org/10.56093/ft.v28i1.25656
