脉红螺(Rapana venosa(Valenciennes))室内人工育苗技术的研究  

Study on Indoor Nursery Culture of Rapana Venosa(Valenciennes)

作　　者：刘晓赫[1] 于瑞海[1] 李琪[1] 安俊庭 王昌勃[1] 刘剑 孔静 

机构地区：[1]中国海洋大学水产学院,山东青岛266003 [2]烟台海益苗业有限公司,山东烟台265619 [3]山东海益宝水产股份有限公司,山东烟台265122

出　　处：《海洋湖沼通报》2015年第2期68-74,共7页Transactions of Oceanology and Limnology

基　　金：国家科技支撑计划-养殖新对象健康苗种扩繁关键技术研究(2011BAD13B01)资助

摘　　要：研究了脉红螺(Rapana venosa(Valenciennes)在室内人工投喂条件下的亲螺交配、卵袋产出、孵化、幼虫培育、采苗。结果为:亲螺促熟培育的适宜饵料是四角蛤蜊,在人工促熟条件下每只雌螺产卵量44.57万粒,胚胎孵化率平均为87.4%;在育苗期间,幼虫前期密度为0.2个/mL,后期0.1个/mL,投喂金藻、小球藻、角毛藻,当平均壳高达到1200μm以上时,投放附有底栖硅藻的聚乙烯波纹板采苗效果最好。本文在稚螺培育中主要研究了脉红螺稚螺食性转换和变态过程中的适宜动物性饵料,以及不同处理方法的附着基对稚螺附着的影响,结果表明:经亲螺爬过和附有底栖硅藻的波纹板,附苗效果好;刚附着变态后稚螺除了投喂牡蛎肉糜外,定期向池内投放活的牡蛎受精卵,可以促进稚螺变态和食性顺利转化,成功培育出壳高1.0cm以上苗种。Mating,spawning,hatching,larvae cultivation and collection of Rapana venosa（Valenciennes）were studied under the condition of artificial feeding.The results showed that Mactra veneriformis Reeve was best for parents ripened.The average amount of eggs laid by per female was 445,700,and the hatching rate was 87.4%in average.At the stage of cultivation,the densities of larvae were 0.2ind/ml in earlier-stage and 0.1ind/ml in later-stage,respectively.Microalgae of Chrysophyta,Chlorellaand Chaetoceros were fed to larvae.Polythene corrugated plates attached by diatom were placed for seedling-collection when the larvae developed to 1200 min height.In addition,optimal animal baits for metamorphosis and changes of diets of juvenile,and the effects of different substrates on larvae settlement were investigated.The results showed that the substrates with vestiges of parents and with diatom were best for settlement.Flesh and germ cells of Crassostrea gigas fed to juvenile R.venosacould facilitate metamorphosis and changes of diets.Finally,Juvenile R.venosa with shell larger than 1.0cm were harvested.

关 键 词：脉红螺 促熟培育 繁殖力 人工育苗 生产技术 

分 类 号：S968[农业科学—水产养殖]