黄海增殖日本对虾的生长特性

GROWTH OF PENAEUS JAPONICUS TRANSPLANTED INTO THE YELLOW SEA

对黄海增殖日本对虾（ＰｅｎａｅｕｓｊａｐｏｎｉｃｕｓＢａｔｅ）群体的生长特性进行研究，并初步确定了该群体的合理开捕期。结果表明，（１）同大多数对虾种类一样，日本对虾也表现出雌雄生长的差异。雄虾生长较快，而雌虾能达到更大的个体。（２）在同体长条件下，该增殖虾体重比南海同种野生虾小。（３）体重生长据点在３个月左右。据此，我们认为在９月中旬开始捕捞较为合理。

The growth of Penaeus japonicus released in the Yellow Sea was studied in thes paper.According to the growth patten, a proper starting date for fishing date for fishing was suggested. The result showed that (1) Like many other species, Penaeus japonicus also demonstrated growth variances between females and males. The males grew more quicldy than the females, but the females could reach bigger body size.(2) The body weight of the released penaeus japonicus was slightly lower than that of the natural Penaeus Japonicus living in the southern China for at the same body length. (3) A inflection point was observed in the weight growth curve at about 3 months old. Thus, we suggested the mid-September would be a proper date to start fishing.