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Sex ratio, spawning season and size at maturity of red bandfish in the western Aegean Sea
Article first published online: 1 APR 2005
Journal of Fish Biology
Volume 49, Issue 4, pages 561–572, October 1996
How to Cite
Stergiou, K. I., Economidis, P. and Sinis, A. (1996), Sex ratio, spawning season and size at maturity of red bandfish in the western Aegean Sea. Journal of Fish Biology, 49: 561–572. doi: 10.1111/j.1095-8649.1996.tb00054.x
- Issue published online: 1 APR 2005
- Article first published online: 1 APR 2005
- (Received 2 June 1995, Accepted 1 December 1995)
- red bandfish;
- Aegean Sea;
- spawning period;
- sex ratio;
- life history
The red bandfish Cepola rubescens is characterized by a normal gonochoristic sexual organization. The overall male: female ratio did not differ significantly (x2=4.57, P<0.05) from the theoretical 1: 1. However, the male: female ratio differed with season and length class and these differences are most probably related to sexual differences in growth rate, natural mortality rate and energetic cost of reproduction. Red bandfish spawns over an extended period, from late spring to mid autumn, with larger females spawning earlier than smaller ones. Males reach maturity at a larger total length, 299 mm, and age, 2.6 years, than females, 219 mm and 1.9 years respectively, a fact most probably indicating the existence of social structure in red bandfish. Finally, red bandfish matures at a comparatively smaller length and age than other fish species.