The effects of water temperature at 23, 27, 31, 33 and 35 °C on growth and bioenergetics of cobia Rachycentron
canadumwith initial bodyweights about 10, 30, 70 and 200 gwere investigated in this paper. Food consumption,
fecal production, nitrogenous excretion, growth rate and metabolic rate of cobia were affected significantly by
both water temperature and fish size. However, the relationships between food energy and feces, excretion,
growth and metabolism energy exhibited linear curves and seemed independent of water temperature and
fish size in the present study.