Original scientific paper

Reproductive biology of Diplodus vulgaris (Teleostei, Sparidae) in the southern Tunisian waters (Central Mediterranean)

Aymen HADJ TAIEB ; Institut National des Sciences et Technologies de la Mer (INSTM), Sfax, Tunisia
Mohamed GHORBEL ; Institut National des Sciences et Technologies de la Mer (INSTM), Sfax, Tunisia
Nader BEN HADJ HAMIDA ; Institut National des Sciences et Technologies de la Mer (INSTM), Sfax, Tunisia
Othman JARBOUI ; Institut National des Sciences et Technologies de la Mer (INSTM), Sfax, Tunisia

Abstract

The reproduction of the common-two banded seabream (N=916), Diplodus vulgaris, was studied in the Gulf of Gabes (Tunisia). The length at the first maturity averages 13.64 ± 0.18 cm for males and 13.84 ± 0.17 cm for females. Macroscopic examination of gonads and gonad-somatic index indicated that spawning occurs once a year between November and February with peak activity in November and December. Fecundity estimates ranged from 8 400 to 30 800 oocytes.

Keywords

Diplodus vulgaris; reproductive cycle; maturity; fecundity; central Mediterranean

Hrčak ID:

97275

URI

https://hrcak.srce.hr/97275

Publication date:

30.12.2012.

Article data in other languages: croatian

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