COMPARING THE FOOD CONSUMPTIONS, GROWTHS AND CONVERSION EFFICIENCIES OF SANDLANCE (Ammodyte personatus Girard) BETWEEN TWO WEIGHT GROUPS

The ecological energetic parameters, such as food consumption(C), growth(G) and ecological conversion efficiency(E), of two weight groups' sandlances fed with Themisto gracilipes were determined by gut content method in controlled conditions of laboratory. The results indicated that:Those parameters such as C, G and E of small weight group are 12.36gW.W./100g/d or 12.44kJ/100g/d, 2.22 gW.W./100g/d or 9.09 kJ/100g/d, 0.18%W.W. or 0.73%kJ; those of big weight group are 9.16 gW.W./100g/d or 9.22 kJ/100g/d, 0.83 gW.W./100g/d or 3.41 kJ/100g/d, 0.09%W.W or 0.37%kJ. The parameters values of small weight group, not only in wet weight but also in energy, are both more than those of big one.