The effect of temperature and salinity on volume of rotifer Brachionus plicatilis complex resting eggs
WANG Shan1,ZHAO Wen1,YAN Hong-qi1,2
1.Key Laboratory of Hydrobiology in Liaoning Province,College of Fisheries and Life Science,Dalian Ocean University,Dalian 116023,China; 2.Insititute of Fisheries Science in Shenyang,Shenyang 110034,China
Abstract: The effects of temperature(15,20 and 25℃)and salinity(5,15 and 30)on resting egg volume of three rotifer species sympatric sibling complex including Brachionus plicatilis Müller(Bm),B.plicatilis Yamamoto(By), and B.rotundiformis Tschugunoff(Br)collected in one coastal lagoon were studied.The volume of the resting eggs was found to be associated with the rotifer size,and to be affected more by changes in temperature and salinity.The volume of the resting eggs was changed with temperature change more in“L”type rotifers than in“S”type rotifers. There were larger volumes in Bm and By resting eggs under lower temperature and salinity while larger volumes of Br resting eggs were observed under only medial temperature and salinity.There was no significant difference in resting eggs volume of Bm and By(P>0.05).
王珊, 赵文, 焉鸿启. 温度和盐度对褶皱臂尾轮虫复合类群休眠卵体积的影响[J]. 大连海洋大学学报, 2012, 27(3): 236-239.
WANG Shan, ZHAO Wen, YAN Hong-qi, . The effect of temperature and salinity on volume of rotifer Brachionus plicatilis complex resting eggs. Journal of Dalian Ocean University, 2012, 27(3): 236-239.