0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^a^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^bcd^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^d^ ± 0.0000.00^a^ ± 00.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^abcd^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^b^ ± 0.0000.00^ac^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^d^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^b^ ± 0.0000.00^d^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^d^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BB0.000.00^a^ ± 0.0000.00^a^ ± 0.000.00^ab^ ± 0.0000.00^d^ ± 0.0000.00^a^ ± 0.000.00^a^ ± 0.00BL: the Bizerte Lagoon; BB:the Bizerte Bay; DGR: Daily Growth Rate;0,0-AG(%):0,0-anhydrogalactose; R-PE: R-phycoerythrin; SD: Standard deviation.Table 0Daily growth rate and proximate biochemical composition of *Gracilaria gracilis* cultivated in Bizerte 