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以初级生产力为基础,采用营养动态模式和沿岸海域生态系能流分析模式,估算同安湾贝类生态容量,并通过对潮间带非养殖区和浅海底栖动物及吊养区滤食性附着动物的现存量调查,估算养殖容量,同时采用统计分析法估算贝类及其主要品种的适养面积。估算结果:贝类养殖容量为45546t(带壳鲜重),适养面积3027hm~2,其中石蛎2280hm~2,吊蛎500hm~2,缢蛏95hm~2,菲律宾蛤仔120hm~2,翡翠贻贝25hm~2。分析1994年以来实际养殖贝类病害不断,单产连续下降的主要原因是超容量养殖所至。建议参照估算的适养面积进行养殖规划,并合理安排布局,适当间养藻类,防止因海域富营养化而发生赤潮。
On the basis of primary productivity, the ecological capacity of Tong’an Bay shellfish was estimated by adopting the nutrient dynamic model and the energy flow analysis model of the coastal marine ecosystem. Based on the analysis of the intertidal non-aquaculture zone and the shallow zoobenthos and the suspended habitat, Of the existing stock survey to estimate the breeding capacity, while using statistical analysis method to estimate shellfish and its main varieties of area. The estimated results are as follows: The shellfish cultivation capacity is 45546t (shell fresh weight) and the suitable area is 3027hm ~ 2, including 2280hm ~ 2 for oyster, 500hm ~ 2 for oyster, 95hm ~ 2 for pomfret, 120hm ~ Bay 25hm ~ 2. Analysis of the actual breeding shellfish diseases since 1994, the main reason for the continuous decline in yields is caused by overcapacity breeding. It is recommended to plan the aquaculture according to the estimated area under suitable cultivation and to arrange the layout reasonably. Algae should be properly maintained to prevent the occurrence of red tide due to eutrophication of the sea.