The length-weight relationships in S. albella and S. gibbosa were estimated. In
5'. albella, the regression coefficients of the 20-39 mm group, the larger indeterminates of the
40-95 mm group and the sexes were found to be significantly different from one another and
from 3. In S.gibboia, the regression coefficients of the 20-39 mm group and the larger fish
(indeterminates of the 40-95 mm group and the sexes) were significantly different from
one another and from 3. In both species, the regression coefficients of the fishes of the
20-39 mm group were significantly higher than those of the fishes of the larger size-groups