豹纹鳃棘鲈工厂化养殖试验

利用闲置的鲍鱼养殖池进行豹纹鳃棘鲈工厂化养殖模式的研究。养殖池长宽高为9 m×3 m×2 m,有效水深约1.7 m,设3个进水口,采用下排上溢的排水方式,在距池底高20 cm处建3排6个进气管,管上打孔增氧。在池中放置一长宽高为6.0 m×3.0 m×1.5 m的网箱,将豹纹鳃棘鲈放在网箱中养殖,有效水体深1.2 m。养殖用水处理:海边沙滤井→沉淀池→三级过滤池→紫外线消毒池→活化珊瑚石过滤→养殖池(下排上溢)→上溢养殖废水用于东风螺或双壳贝类养殖,下排养殖废水进入污水沉淀处理池。在2011年7月放养9 000尾全长10 cm的优质豹纹鳃棘鲈苗种,经过约15个月的养殖,共养成每尾平均体重约742 g的商品鱼5 710 kg,养殖成活率达85.5%,单位产量达12.4 kg·m-3。

Industrial Aquaculture Experiment of Plectropomus leopardus

A unused abalone aquaculture pond was used for experiment in industrial aquaculture of Plectropomus leopardus.The aquaculture pond was spaced 9 m long,3 m wide and 2 m high with an effective depth of about 1.7m,and had 3 water inlets.The water was discharged from the bottom of the pond and spilled over from the top.In the pond 6 perforated intake tubes were arranged 20 cm above the bottom to increase oxygen,and a 6.0 m × 3.0 m × 1.5 m cage was placed in the pond to farm Plectropomus leopardus with the effective water depth of 1.2m.The water used for the shrimp aquaculture was treated in a way as follows：the coastal sand fiber well→settling basin→ triple filtration pool→ ultraviolet disinfection pool→ activated corallite filtering→ aquaculture pond.The waste water spilled over from the top of the pond was used to farm Babylonia or bivalves.The aquaculture wastewater was discharged from the bottom of the pond into the settlement tank.In July 2011 9 000 quality fingerlings 10 cm long of P.leopardus was farmed in the cage,and 5 710 kg fishes with an average weight of about 742 g · fish were harvested in September 2012 after more than 15 months of aquaculture.The aquaculture survival rate was 85.5%,and the yield was 12.4 kg · m-3.