摘要
在牙鲆养殖水体中引入繁茂膜海绵和龙须菜,用以生物修复病原菌和氨氮污染。研究发现,在养鱼水体中引入0.27%(w/v)繁茂膜海绵时,水环境中致病性弧菌数量显著降低;在繁茂膜海绵和牙鲆混养水体中引入0.07%(w/v)的龙须菜时,水环境中氨氮浓度显著降低。在引入繁茂膜海绵和龙须菜的水体中饲育牙鲆79 d,水体中致病性弧菌数量降低了(63.1±7.0)%;氨氮浓度降低了(75.5±3.4)%;牙鲆生物量是对照组的117.5%,成活率是对照组的122.2%;龙须菜增长率为(2.52±0.62)%/d;繁茂膜海绵增长率为(-0.82±0.10)%/d。结果表明,繁茂膜海绵和龙须菜能够有效调控牙鲆养殖水体中病原菌和氨氮污染。
The feasibility of using sponge Hymeniacidon perlevis and alage Gracilaria lemaneiformis to bioremediate the bacteria and ammonia pollution in the Japanese founder Paralichthys olivaceus-cultured system was investigated. It was found that the pollution level of pathogenic vibrio could be controlled effectively in the P. olivaceus culture system treated with H. perlevis [ 0.27% （w/v） ], and the pollution level of ammonia could be controlled effectively in the co-cuhured system of P. olivaceus and H. perlevis treated with G. lemaneiformis [ 0.07 % （w/v） ]. H. perlevis and G.lemaneiformis continuously showed good bioremediation of bacteria and ammonia pollution in the P. olivaceus culture system for 79 days, achieving removal of （63.1 ±7.0） % of pathogenic vibrio, and （75.5 ±3.4 ） % of ammonia. At the end of the experiment, the biomass and the survival rate of P. olivaceus in systems co-treated with H. perlevis and G./emane/form/s were 117.5% and 122.2%, respectively, of that in control systems. The growth rates of G. lemaneiformis and H. perlevis were of （2.52 ±0.62） %/d and （ -0.82 ±0.10） %/d,respectively. The results demonstrate that the pollution levels of pathogenic vibrio and ammonia in the intensive P. olivaceus-cultured system can be effectively controlled by H. perlevis and G. lemaneiformis.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2013年第5期767-771,共5页
Marine Environmental Science
基金
国家海洋"863"高科技研究发展计划项目(2003AA620404)
关键词
繁茂膜海绵
龙须菜
牙鲆
致病性弧菌
氨氮
Hymeniacidon perlevis
Gracilaria lemaneiformis
Paralichthys olivaceus
pathogenic vibrio
ammonia
