方格星虫中培苗对温度、盐度和干露的耐受性试验  

Tolerance of Juvenile Peanut Worm Sipunculus nudus to Temperature,Salinity and Desiccation

作　　者：林景超[1,2] 刘旭佳[1] 沈夏霜 吴雪萍[2] 周于娜 潘奕达 黄国强[1] 潘英[2,3] 

机构地区：[1]广西海洋研究所广西海洋生物技术重点实验室,广西北海536000 [2]广西大学动物科学技术学院,广西南宁530004 [3]广西高校水生生物健康养殖与营养调控重点实验室,广西南宁530005

出　　处：《水产科学》2016年第3期267-271,共5页Fisheries Science

基　　金：广西科学研究与计划开发计划项目(桂科攻14121006-2-5);广西海洋生物技术重点实验室开放基金资助项目(GLMBT-201403)

摘　　要：研究了方格星虫中培苗对盐度突变、温度突变和盐度渐变、温度渐变及干露的耐受性。试验结果表明,方格星虫中培苗耐受盐度的范围比较广泛,为10~45,适宜的盐度为15~40;适宜温度为15~30℃,对低温有较强的耐受力。方格星虫中培苗在低温保湿干露48h未发生死亡,大量死亡集中在72~96h。根据试验结果可知,方格星虫中培苗对环境的适应性较强,耐温、耐盐范围较广,且具有较强的耐干露能力,便于苗种运输。The tolerance of juvenile peanut wormSipunculusnudus to abrupt and gradual changes insalini ty and temperature,and desiccation was studied during the intermediate culture. It was found that the pea- nut worm tolerated salinity extensively from 10 to 45, with suitable salinity ranging from 15 to 40. The suitable water temperature was changed from 15 ℃ to 30 ℃ ,with high tolerance to low temperature. There was no mortality in the peanut worm exposed to low temperature and desiccation for 48 h,but mass mortal ity were found in the peanut worm exposed to desiccation for 72 96 h. The findings indicate that S. nudus is a eurythermal and euryhaline species near coastal regions,and strong competence to stand desiccation, with convenient for long distance transport.

关 键 词：方格星虫 中间培育 苗种 盐度 温度 干露 耐受性 

分 类 号：S968.9[农业科学—水产养殖]