两种微藻对凡纳滨对虾幼体成活率的影响  

Effects of two microalgae on the survival rate of Litopenaeus vannamei larvae

作　　者：陈标 雷小婷 卓瑞群 向文洲[2] 潘庆 CHEN Biao;LEI Xiaoting;ZHUO Ruiqun;XIANG Wenzhou;PAN Qing(College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China;Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), South China Sea Institute of Oceanology,Guangzhou 510301, China)

机构地区：[1]华南农业大学海洋学院,广州510642 [2]中国科学院南海海洋研究所热带海洋生物资源与生态重点实验室(LMB),广州510301

出　　处：《生态科学》2017年第6期78-82,共5页Ecological Science

基　　金：广东省渔港建设与渔业产业发展专项(A201601A13);中国科学院海洋生物资源可持续利用重点实验室开放基金(LMB17011008)

摘　　要：试验旨在研究钝顶螺旋藻(Sprinulian platensis)和Picochlorum sp.两种微藻培育凡纳滨对虾(Litopenaeus vannamei)幼体效果,为开发凡纳滨对虾开口饵料提供参考依据。实验对照组D0投喂商品螺旋藻粉,实验组D1、D2分别投喂钝顶螺旋藻和Picochlorum sp.,每组3个重复,每个重复2万尾凡纳滨对虾幼体,在300 L育苗桶中饲养七天。结果表明,D0和D1组间凡纳滨对虾存活率无显著差异(P>0.05),但两组极显著高于D2组(P<0.01)。在凡纳滨对虾育苗过程中,水体总氨氮浓度小于50 umol·L^(-1)、亚硝酸盐氮浓度小于2 umol·L^(-1)。钝顶螺旋藻可以保证较高的幼体变态存活率,可以作为凡纳滨对虾开口饵料新资源开发利用。The feeding trial was conducted to compare the effects of Sprinulian platensis and Picochlorum sp.on the survival rate of Litopenaeus vannamei larvae and provide the theoretical basis for shrimp's start-feed.Three experimental groups in triplicate were designed and20thousand nauplius in each300L tank were fed with commercial Sprinulian(D0),Sprinulian platensis(D1)and Picochlorum sp.(D2),separately,for7days.The results showed that the survival rates of D0and D1were significantly higher than those of D2(P<0.01),while there was no significant difference between D0and D1(P>0.05).The contents of ammonia nitrogen and nitrite nitrogen were below50μmol·L-1and2μmol·L-1respectively during shrimp larvae culture.The results indicated that Sprinulian platensis could ensure higher survival rate in metamorphosis and be used as a new resource in shrimp's start-feed.

关 键 词：钝顶螺旋藻 Picochlorum sp. 凡纳滨对虾 幼体 存活率 氨氮 

分 类 号：S963.73[农业科学—水产养殖]