INDIVIDUAL FECUNDITY OF ACROSSOCHEILUS PARALLENS IN THE BEIJIANG RIVER

There were 358 specimens of Acrossocheilus parallens collected between July 2007 and June 2009 in the Beijiang River. The data for body length （L）, body weight （W）, net body weight （Wn）, ovary weight （Wo） were measured, and the gonadosomatic index and the fullness were calculated. The individual fecundity of 73 female of the total specimens which ovaries at stage Ⅳ and the relationship between the individual fecundity and the biological indexes were studied from July 2007 to June 2009. The relationship between individual absolute fecundity (F) and total length, standard length，body weight，net body weight and ovary weight was described by power equation, and the relationship between F and gonadosomatic indexes, age was regressed best by exponential equation. The individual relative fecundity of body length (FL) was significantly correlated to total length, body length，body weight，net body weight,ovary weight, gonadosomatic indexes and age. Both of F and FL had no obvious relationship with fullness. The FW is not significantly correlated to all the biological indexes. The distribution of egg-diameter in Ⅲ and Ⅳ maturity stage ovary implicated that A.parallens spawns in batches.