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Abstract

A reproductive study was conducted on 320 individuals of common Pandora Pagellus erythrinus, from Oran Bay providing information for a more understanding of the reproductive cycle. These specimens were sampled monthly during the landing of coastal fisheries among the whole samples, 86 (29.86%), were males and 202 (70.14%) were females. The monthly sex ratio showed significant differences between males and females. Females outnumbered males at size 16.5cm and 28.5cm. high gonad index values associated with advanced stages of maturity were observed in P.erythrinus females between April and July, less important values were recorded in October while size at first maturity L 50 for females occurred at 12.5cm.