摘要
设计双因子实验研究了水温25.0℃±0.5℃下,盐度(5,15,30)和Ca2+质量浓度(175,350,700,1 400,2 800 mg/L)对中国明对虾(Fenneropenaeus chinensis)稚虾耗氧率的影响,实验对虾的湿体质量为0.301 g±0.041 g。实验结果表明:(1)不同盐度下,中国明对虾稚虾耗氧率的大小顺序为R5>R30>R15。其中,盐度15下对虾的耗氧率显著低于盐度5和30下的耗氧率(P<0.05);(2)不同Ca2+质量浓度下,中国明对虾稚虾耗氧率的大小顺序为R2 800>R175>R700>R1 400>R350。其中,Ca2+质量浓度为350 mg/L组对虾的耗氧率显著低于其它处理组,Ca2+质量浓度为2 800 mg/L组对虾的耗氧率显著高于其它处理组(P<0.05),而Ca2+质量浓度为175,700和1 400 mg/L组间对虾的耗氧率差异不显著(P>0.05);(3)盐度和Ca2+质量浓度的交互作用显著影响中国明对虾稚虾的耗氧率(P<0.05)。
Designed two-factor experiment was set up to investigate the effects of salinity and Ca^2＋ concentration on the oxygen consumption rate of juvenile Fenneropenaeus chinensis with the initial wet body weight of 0. 301 g±70. 041 g under water temperature of 25.0℃±0.5℃. Three salinity levels were 5, 15 and 30, respectively, and five Ca^2＋ concentrations of every salinity levels were 175, 350, 700, 1 400, 2 800 （mg/L）, rer spectively. The results were as follows： （1） Salinity affected the oxygen consumption rate of the juvenile F. chinensis significantly （P〈0.05）. The oxygen consumption rate of the juvenile F. chinensis under three salini ty levels showed a declining gradient of Rs5〉R30〉R15, and there were significant differences among three treatments （P〈70.05） ; （2）Ca^2＋ concentration affected the oxygen consumption rate of the juvenile F. chinensis significantly. The oxygen consumption rate of the juvenile F. chinensis under five Ca^2＋ concentration levels showed a declining gradient of R, 800）R175〉R700 ）R1400 ）〉R350, The oxygen consumption rate under 2 800mg/L of Ca^2＋ concentration was significantly higher than that of other treatments （P〈0, 05）, while under 350 mg/I, of Ca^2＋ concentration, it was significantly lower than those of other treatments （P〈0.05）. （3） The interaction between salinity and Ca^2＋ concentration also significantly affected the oxygen consumption rate of the juvenile F. chinensis （P〈0. 05） , while the effect was lower than those of salinity and Ca^2＋ concentration, repectively.
出处
《海洋科学》
CAS
CSCD
北大核心
2006年第12期92-95,共4页
Marine Sciences
基金
国家自然科学基金资助项目(30571441)
