摘要
2016年4月23日至7月12日对地膜精养及普通土池模式下凡纳滨对虾池塘水体的主要理化因子进行跟踪监测,研究不同养殖模式对水质变化的影响。结果表明,2种养殖模式下池塘水体的p H和DO均随养殖时间的延长逐渐下降,地膜池与普通土池相比p H无统计学意义(P>0.05),但30 d起地膜池DO含量高于土池(P<0.05);地膜池和土池的COD、氨氮、亚硝酸盐和磷酸盐的含量总体上均呈上升趋势,但土池亚硝酸盐含量在养殖后期(70~90 d)迅速下降。
The main physical and chemical factors in two Litopenaeus vannamei intensive-culture ponds,in which laying or not laying plastic film,namely plastic film pond and earthen pond,respectively,weretraced from April23to July12in2016,and the variation of the factors were analyzed.The resultsshowed that pH and DO value decreased with culture time in two culture models.The value of pH hadno significant difference between two ponds(P>0.05),and DO in plastic film pond was much higherthan that in earthen pond from the30th day(P<0.05).The value of COD,nitrite nitrogen,ammonianitrogen and phosphate showed a general rise in the experiment,but the concentration of ammonianitrogen in earthen pond dropped rapidly from70days.
作者
刘加慧
傅学丽
刘建勇
LIU Jia-hui;FU Xue-li;LIU Jian-yong(Zhanjiang Guoxing Biotech Co. Ltd, Zhanjiang 524000, China;Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China)
出处
《广东海洋大学学报》
CAS
2017年第4期113-117,共5页
Journal of Guangdong Ocean University
基金
国家科技支撑计划(2015BAD13B03-3)
广东省海洋与渔业局海洋经济创新发展区域示范专项(GD2012-A02-016)
关键词
凡纳滨对虾
养殖模式
理化因子
变化特征
Litopenaeus vannamei
culture patterns
physical and chemical factors
variation character
