露空胁迫对管角螺成活率的影响  

Survival response of Hemifusus tuba to the stress of air exposure

作　　者：吴雪萍[1,2] 周于娜 沈夏霜 罗福广[1] 陈宇[1] 潘英[1] 

机构地区：[1]广西大学动物科技学院,广西南宁535004 [2]广西海洋生物技术重点实验室,广西北海536000

出　　处：《海洋通报》2017年第1期91-95,共5页Marine Science Bulletin

基　　金：国家自然科学基金(31060353);广西海洋生物技术重点实验室开放基金(GLMBT-201403);广西研究生教育创新项目(YCBZ2015007)

摘　　要：以不同发育阶段的管角螺为材料,研究了其在不同温度的干、湿环境下对露空的成活响应。实验结果表明,管角螺的成螺、幼螺及稚螺在低温湿润(18℃~20℃)的条件下可耐受更长的露空时间。成螺在低温湿润条件下露空72 h成活率达100%,但随着露空时间的延续,成活率降低,至10 d成活率降到10%。幼螺在同样条件下露空至72 h成活率为80%,稚螺为40%。而在高温(28℃~30℃)干燥的条件下干露相同的时间成活率明显降低,成螺72 h成活率为50%,至96 h全部死亡;幼螺72 h成活率为52.5%,稚螺68 h后全部死亡。在温度、湿度相同的条件下,管角螺耐露空能力为成螺>幼螺>稚螺。The paper studied the survival response of young and adult H.tuba to the stress of air exposure at different temperatures（18 ℃ ～ 20 ℃ and 28 ℃ ～30 ℃） and moistures（dry and moist conditions）.The results indicated that the survival rates of naiad,young and adult H.tuba were higher in the conditions of moisture and low temperature even under the long-time air exposure,but under the high temperature and dry conditions they were able to endure short time air exposure.The tolerance ability of exposure to air was as follows： adult 〉young 〉naiad.This study will supply references for H.tuba collection of seeding,long-distance transport,and preservation of adult H.tuba under the conditions of low temperatures and air exposure.

关 键 词：管角螺 露空胁迫 成活率 

分 类 号：S968.3[农业科学—水产养殖]