Metabolic Energy Of Japanese Sea Bass (Latelabra Japonicus) And Its Main Influence Factor

The experiment adopts the continuous-flow respirometer designed independently to determine the standard metabolic rate (Ms) and specific dynamic action (SDA) of Japanese sea bass (Latelabra japonicus),and adopts the instrument for determining activity metabolism of fish designed independently to determine the activity metabolic rate(Ma) of Japanese sea bass (Latelabra japonicus). And discuss the relationship between the factor of temperature or body weight and Ms or SDA, and the relationship between the factor of body weight or velocity of flow and Ma.Standard metabolic rate (Ms) of 56 Japanese sea bass (39.3-158.7) were measured at 16.1?.0, 8.3?.84.2?.7癈. Mean weight specific metabolic rates is 153mg/kg/h. Ms increase with increasing of body weight and temperature. Therelationship between Ms and body weight fit the power curve: Ms = aWb, andquadratic equation curve between Ms and temperature.The body exponent b value of Japanese sea bass is0.843?0.03, it's independent of temperature. The equation of interaction of body weight and temperature on Ms is:Specific dynamic action (SDA) of 48 (39.3-156g) Japanese sea bass increases with the increasing of body weight and temperature. The relationship between SDA and body weight fit the quadratic equation curve, and the same between SDA and temperature.The relationship between SDA and body weight is not singnificent at 4.2 . The equation of interaction of body weight and temperature on SDA is: SDA=-0.0047W+0.3014T-1.01, (N=56, R2K).46)oAdopts the instrument for determining activity metabolism of fish designed independently, activity metabolic rate(Ma) of 7 different body weight Japanese seabass were measured at 8.3?.8 and different velocity of flow. The result showes that the relationship between the Ma and body weight fit the index curve (Y=aebx) with an increasing tendency at different velocity of flow. At the velocity of 51.8-66.3cm/s, Ma increases with the increasing of velocity of flow at the same body weight groups. In the scope of experiment, the mean value of Ma/Ms is 0.7043?.3 869 at the different velocity of flow.