管角螺育苗及种螺物质代谢规律研究  

Study on breeding and material metabolism of Hemifusus tuba Gmelin

作　　者：张林林[1] 母昌考[1] 李荣华[1] 宋微微[1] 蒋霞敏[1] 王春琳[1] 

机构地区：[1]宁波大学海洋学院,浙江宁波315211

出　　处：《生态科学》2012年第5期525-529,共5页Ecological Science

基　　金：浙江省重大科技攻关项目"管角螺规模性人工养殖技术和模式研究与示范(2009C12076)"

摘　　要：管角螺产卵期间摄食较少,并且体重总体呈下降趋势,一方面由于产卵期间主要进行交配和产卵活动,很少进行摄食,另一方面又大量消耗体内的物质和能量,导致体重的直接下降;有少数雄螺基本没有变化,甚至有所增加。种螺在后期暂养过程中出现了部分死亡现象,这与其体能消耗过大导致体力下降有关,应该在产卵后及时补充食物,并尽早放回自然海区以保证成活率。卵囊内的卵发育要经历45~60天,之后稚螺出囊。稚螺的培育技术还不够成熟,本次实验中出现了大量死亡的现象,与环境的变化直接相关,在今后的育苗工作中要汲取教训,及时应对出现的各种问题,以保证稚螺的成活率,为大规模管角螺育苗打下良好的基础。Hemifusus tuba Gmelin populations took little food during their breeding period,and their weight declined.This was due to two main reasons： on the one hand,they mated and spawned,and did not want to take food;on the other hand,they consumed massive material and energy of the body during the period.But the weight of a few male populations did not change;some even increased.After the later breeding period,some H.tuba individuals died,and this was related with the overuse of the energy of body.So they would have been given enough food,and put back to the sea to increase their survival rate.The upgrowth of eggs in egg capsule took 45-60 days,and then the juvenile individuals appeared.As the skill of breeding juvenile individuals was not so mature,massive ones died in short time after they came out of the egg capsules due to the environmental changes.So we should learn from the lesson,and deal with the problem during the breeding quickly to keep the higher survival rate.Only in this way can we breed massive juvenile individuals in the future.

关 键 词：管角螺 育苗 卵囊 稚螺 

分 类 号：S966.28[农业科学—水产养殖]