Influence of food concentration on energy balance and growth performance of Venerupis pullastra seed reared in an open-flow system

Seed of the clam Venerupis pullastra were reared with five different rations of Isochrysis galbana: 15, 30, 100, 200 and 300 cells μl−1, in an open-flow system. Physiological parameters such as clearance, ingestion and absorption rates were recorded, and energy balances calculated from these parameters were compared with the long-term growth performance of the seed. High food concentrations inhibited clearance rate but ingestion could not be...