摘要
传统的梭子蟹池塘养殖、围网养殖以及后来发展的笼养、筐养等对自然环境依赖性强、可控性差、劳动强度大、养殖产量低。本研究针对传统养殖方式的不足，采用格栅式单体养殖方法，有机组合生物净化水处理单元，构建了温室大棚梭子蟹格栅式循环水养殖系统，研发了具有“防止互残、遮阳保温、增氧去污”等性能的梭子蟹养殖新模式。结果表明，格栅式养殖池放养梭子蟹C8～C9期大规格苗种，经113 d养成至C11～C12期商品蟹，平均甲宽168 mm、平均体重253 g，存活率75．4％，养殖平均产量3．054 kg／m2。与传统养殖方式相比，采用温室大棚格栅式循环水养殖技术能有效延长梭子蟹的生长期，单位面积养殖产量和存活率均有显著提高。
Traditional Portunus trituberculatusculture in pond , isolated net, cage and basket are subject to the natural environment and are characterized by poor controllability, great labor intensity, low yield.In this study, a grid type culture of P.trituberculatus in a recirculating aquaculture system was explored, which have advantages of avoiding cannibolism, sunshade and heat preservation, aeration and decontamination.Crabs at stage of C8-C9 were moved into the grid type recirculating culture system and cultured for 113 days to commercial crab at stage of C11-C12 , the carapace breadth and body weight reached to 168 mm and 253 g respectively.And the average yield reached to 3.054 kg/m2 with survival rate of 75.4%.Compared to the traditional culture model, the average yield of grid type recirculating culture system has significantly increased.
出处
《渔业现代化》
北大核心
2015年第4期6-10,共5页
Fishery Modernization
基金
公益性行业(农业)科研专项经费项目(201203065)
南通市农村科技创新及产业化项目(HL2013011)
江苏省自然科学青年基金项目(BK20130398)
