沟竹蛏的繁殖季节与生长

THE REPRODUCTIVE SEASON AND GROWTH OF Solen canaliculatus

根据性腺形态特征、组织切片观察和肥满度指数变化 ,报道沟竹蛏繁殖期为每年的6～8月份 ,分批放散精、卵 ,其两次生殖高峰分别出现于6月上、中旬和8月上、中旬。繁殖季节、肥满度指数与温度密切相关 ,其繁殖期适宜温度为25～29℃。沟竹蛏的壳长与壳高的关系呈直线正相关 ,L=4.304H -2.084 ,(r=0.9138) ;壳长与干肉重呈幂函数关系 ,W1(非繁殖季节 )=4.750×10-7×L3.53,(r=0.9196) ,W2(繁殖季节 )=3.942×10-7×L3.301,(r=0.9105)。

The paper reports on preliminary research into the reproductive cycle, season and growth of Solen canaliculatus. Breeding season is from June to August and two peaks of reproductive are found in early of June and early of August(temperature about 25 29 ℃). The relationship of the shell length and the height is L=4.304H-2.084,(r=0.913 8).The relationship between the dried meat weight and the shell length is W1=4.750×10-7×L3.53,r=0.919 6(not reproductive season)and W2=3.942×10-7×L3.01, r=0.910 5(reproductive season).