低盐度胁迫对褶皱臂尾轮虫增殖情况的影响  

The Impact of low salinity stress on the proliferation of Brachionus plicatilis

作　　者：杨博添 罗颖[2,3] 吴洪芳 付生云[2,3] YANG Botian;LUO Ying;WU Hongfang;FU Shengyun(Sichuan Water Conservancy Career Technical College,Chengdu 610041,China;The Rescues Center of Gymnocypris przewalskii,Xi'ning 810016,China;Key laboratory of Breeding and Protection of Gymnocypris przewalskii in Qinghai Province,Xi'ning 810016,China)

机构地区：[1]四川水利职业技术学院,四川成都611231 [2]青海湖裸鲤救护中心,青海西宁810016 [3]青海省青海湖裸鲤繁育与保护重点实验室,青海西宁810016

出　　处：《河北渔业》2024年第9期17-18,27,共3页

摘　　要：为优化轮虫养殖条件,探讨了低盐度环境对褶皱臂尾轮虫(Brachionus plicatilis)增殖和产卵率的影响。试验设置不同盐度处理组(盐度分别为3‰、4‰、5‰、6‰),在控制水温和pH值的条件下,每日投喂小球藻,并监测轮虫的增殖情况。结果显示,随着盐度的增加,轮虫的增殖率和产卵率均显著提高,其中6‰盐度组的增殖率最高。这表明褶皱臂尾轮虫在低盐度下虽能存活,但其繁殖性能在更高盐度下更好。To understand optimized conditions for rotifer cultivation,the effects of low salinity on the proliferation and egg-laying rate of the rotifer Brachionus plicatilis were investigated.Different salinity treatment groups(3‰,4‰,5‰,6‰)were set up under controlled water temperature and pH conditions,with daily feeding of Chlorella and monitoring of rotifer proliferation.The results showed that both the proliferation rate and egg-laying rate of the rotifers increased significantly with the increase in salinity,with the highest proliferation rate observed in the 6‰salinity group.This indicates that while Brachionus plicatilis can survive at low salinities,its reproductive performance is better at higher salinities.

关 键 词：褶皱臂尾轮虫(Brachionus plicatilis) 低盐驯化 盐度 

分 类 号：S963.214[农业科学—水产养殖]