大港湾贝类养殖容量的评价

Study on the Carrying Capaity of Dagang Bay for the Culture of Shellfish

应用统计分析法估算了大港湾贝类的适宜养殖面积,同时采用Tait模式和营养动态模式估算贝类自然生产力,根据调查潮间带非养殖区底栖软体动物、吊养区非养殖滤食性附着动物及浅海底栖软体动物的现存量计算贝类可养殖量,估算结果适养面积为346.67hm^2,贝类自然年生产力为31024t和29829t,海区滤食性软体动物现存量7731t,养殖容量为23293t和22098t。1996年后的实际养殖面积和养殖量已超过了估算的适养面积和养殖容量。

The optimal area of shellfish is estimated based on statistics analysis, According to the investigation of standing crop of Benthos mollusca in non-culture area in intertidal zone, non-culture filter-feed setting animal in hanging culture area and Benthos mollusca in shallow sea, the optimal fanning output of shellfish is calculated by using Tait model and nutrition dynamic model. The results indicate that the optimal farming area is 346.67hm2, natural annual productivity of shellfish is 31024t and 29829t. Standing crop of filter-feed mollusca is 7731t, the capacity for culture is 23293t and 22098t. The actual culture area and farming output of 1996 was exceeded the estimate of optimal culture area and culture capacity