The length and weight relationship of red porgy pagrus pagrus from eastern coast of Libya

The study area is located on the east coast of Libyan Mediterranean sea. It includes all coast of Benghazi and the area around it which is located between 32°36'N and 20°03. The number of sample collected for the study was 254 fish: males 81 and females 143. The sex ratio male to female was 1:1.8.The length-weight relationships for males, females, and both sex were found significant (p < 0.001) in all groups. In all months except December, April, June and July b equal 3(isometric relationship). For December, April, June and July the relationship was positive allometric growth (b between 2.804, and 2.77).