摘要
对广西海洋研究所古城海水增养殖试验基地的跑道式养殖池进行了-茬南美白对虾养殖主要生态因子的跟踪监测。结果表明，养殖水体中的异养菌、弧菌具有明显不同的变化趋势，异养菌在养殖前、后期稍低，中期高；弧菌为前期低，后期高且变化幅度大。异养菌为8．02×10^3～6．15×10^4cfu／ml，弧菌为1．50×10～1．42×10^4cfu／ml，对照的蓄水池异养菌、弧菌为1．0×10^3cfu／ml；养殖池的pH值为7．1～8．8，溶解氧为1．48～3．75mg／L，皆为前期高，后期低。盐度前期约为33．8，其后则在18．1～24．6变化，氨氮为0．2～1．5mg／L，亚硝酸盐在养殖前期〈0．01mg／L，后期〉0．3mg／L；异养菌、弧菌与各理化因子之间不具明显的线性相关；在养殖过程中，养殖对虾没有检测到白斑综合征病毒。
In this trial shrimps were reared in the raceway in mariculture station of Guangxi Institute of Oceanography and the crucial ecological factors were monitored and recorded. The results showed that the fluctuation pattern of heterobacteria and vibrios in the seawater were different. The number of heterobaeteria ranged from 8.02 × 10^3 ～ 6.15 ×10^4 cfu/ml, lower at early and late stage and higher at mid - stage. The number of vibrios ranged from 1.50 ×10 efu/ml tol. 42 ×10^4 cfu/ml, lower at early stage, and higher and fluctuated more widely at late stage. In the reservoir, both heterobacteria and vibrios number remained low at less than 1.0 ×10^3 cfu/ml during whole shrimp farming period. The pH and DO of water in shrimp culture ranged from 7.1 to 8.8 and 1.48 - 3.75 rag/ L, respectively, both higher at early stage and lower at late stage. The salinity of the seawater was 33.8 at early stage and varied between 18.1 and 24.6 thereafter. The concentration of ammonia varied between 0.2 mg/L and 1.5mg/L and that of nitrite was lower than 0.01 mg/L at early stage and higher than 0.3mg/L at late stage. The present results did not suggest any linear correlation between heterobaeteria, vibrios and those physical and chemical factors. No white spot syndrome virus was detected in this experiment,
出处
《水产科学》
CAS
北大核心
2006年第4期166-170,共5页
Fisheries Science
基金
广西科技攻关项目(桂科攻0228007-1
0322006-3D)
广西自然科学基金资助项目(桂科青0542023)
北海市科技攻关项目(20052045)
关键词
跑道式养殖
异养菌
弧菌
白斑综合症病毒
理化因子
raceways
white spot syndrome virus
heterobactefia
vibrios
physical and chemical factors.
