Optimum temperature and growth performance of hatchery reared black sea fl ounder (platichthys fl esus luscus pallas, 1814)

Abstract

Th e present study focused on the eff ect of water temperature on growth and feed conversion ratio of juvenile Black Sea fl ounder (Platichthys fl esus luscus; initial weight: 2.0 g ± 0.01 g). Th e experiment was carried out for 84 days with the following range of water temperatures: 13, 17, 21, and 25 °C. Growth, food consumption, and feed conversion ratio were the highest at 21 °C and the lowest at 13 °C. Th e growth rate of the fi sh increased with water temperatures up to 21 °C and it decreased signifi cantly with a further increase in temperature. Th e conclusion of this study was that the optimal water temperatures for growth and feed conversion ratio for Black Sea fl ounder were 20.9 °C and 20.2 °C, respectively. © TÜBİTAK.