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In Brazil, the cultivation of Crassostrea tulipa (= C. gasar) is gaining in importance. However, little is known about the best conditions for farming. Therefore, this study aimed to evaluate the effect of oyster density (50, 100, 200, and 400 mL of seeds/0.15 m; 100, 200, 300, and 400 ind/0.10 m (basket area) and 30, 60, 120, and 180 ind/0.13 m (lantern floor area) in nursey, juvenile and adult phase, respectively) on the growth and survival of C. tulipa in farm cultivation. In the nursery phase, the 50 mL density resulted in smaller oyster size, as expressed in height and height/length (H/L) ratio (1.31 ± 0.03 mm), compared to other densities, while the length and width was equal among densities. The animals' individual average weight and H/L ratio were negatively influenced by a density of 100 ind/0.10 m or bigger. However, animals grown at the density of 200 ind/0.10 m did not differ statistically in length or width from those grown with 100 ind/0.10 m. A high survival rate (≥98%) was found in the nursery and juvenile phases.

The effect of density on the cultivation of the native mangrove oyster Crassostrea tulipa (Lamarck, 1819)