水生生物学报2017，Vol.41Issue(3)：523-529,7.DOI:10.7541/2017.67
模拟阴天对南美白对虾养殖水体理化及其生长指标的影响
THE EFFECT OF SIMULATING THE CLOUDY DAY ON AQUACULTURE WATER PHYSIOCHEMICAL CHARACTERS AND GROWTH INDEX OF PENAEUS VANNAMEI
摘要
Abstract
To explore effects of cloudy day on growth index of Penaeus vannamei and physiochemical characters of aquaculture water, the low light environment in cloudy day was simulated by adding black shade net to P. vannamei in the 1st, 3rd, 5th, and 7th week of the 7-week trial. The control group was exposed to daylight in the whole experimental period. The results revealed significant differences on pH, DO, Chl.a, NH+4-N, NH3-N, NO-2-N,PO3-4-P between the shade group and the control group (P<0.05). Cloudy day simulation significantly reduced Chl.a level but significantly increased the concentration of NH+4-N and OP3-4-P (P<0.01). Cloudy day simulation showed no signifi-cant change in the concentration of Chl.a, NH+4-N and OP3-4-P. Cloudy day simulation increased concentration of NO-2-N in the first 5 weeks, which was reversed at the 6th and 7th week. Cloudy day simulation also enhanced NO-3-N concentration for the whole time. These results suggest that NH3-N and NO-2-N may inhibit the growth of P. vannamei. The algae could indirectly benefit the growth of P. vannamei. Cloudy day simulation inhibited algae from absorbing the toxic ions in aquaculture waters and deteriorated the growth and survival of P. vannamei.关键词
交替遮荫/南美白对虾/水体理化/生长指标Key words
Alternate shading/Penaeus vannamei/Water physicochemical characters/Growth index分类
农业科技引用本文复制引用
李美林,黄晓林,陈琛,刘伟成,曾国权,谢起浪..模拟阴天对南美白对虾养殖水体理化及其生长指标的影响[J].水生生物学报,2017,41(3):523-529,7.基金项目
浙江省科技计划项目(2016F50035) （2016F50035）
国家虾产业技术体系温州综合试验站(CARS-47)资助 Supported by the Zhejiang Province Science and Technology Planning Project (2016F50035) （CARS-47）
China Agriculture Rescarch System(CARS-47) （CARS-47）
