This study aimed to know the effect of different feedings on growth performance, physiological responses, and behavioral changes juvenile spiny lobsters. The experimental method used a completely randomized design with three treatments four replications. There were feeds as treatment, namely: flesh mussel (K), commercial fish feed (I), shrimp (U). Feed is given much 30% body weight, five times ...

The vertical distribution and swimming ability of the three larval stages (Zoea I, II, and III) of Homarus gammarus were determined in laboratory experiments. In an artificial water column, newly hatched larvae were positively phototactic to white light at intensities near 0.6 mmol m 2 s . The positive phototactic behaviour decreased with increasing larval age and stage. Accordingly, older larv...