体质量对雌雄孔雀鱼静止代谢率的影响  

Effect of Body Mass on the Resting Metabolic Rate of Male and Female Guppy,Poecilia reticulata

作　　者：段婷[1] 李永利[1] 李格[1] 谢航[1] 罗毅平[1] 

机构地区：[1]西南大学淡水鱼类资源与生殖发育教育部重点实验室,重庆400715

出　　处：《重庆师范大学学报（自然科学版）》2016年第5期29-32,共4页Journal of Chongqing Normal University:Natural Science

基　　金：国家自然科学基金(No.31000958);重庆市自然科学基金(No.CSTC2013jcyjA80023);重庆市食品药品检验检测研究院项目(No.2015092)

摘　　要：在25℃下测定了60尾雌雄各半、不同大小的孔雀鱼(Poecilia reticulata)的静止代谢率(Resting metabolic rate)。结果表明:雄性孔雀鱼(体质量范围为0.16~1.15g)静止代谢率范围为0.03~0.37 mg·h^(-1);雌性孔雀鱼(体质量范围为0.16~2.13g)静止代谢率的范围为0.03~0.44mg·h^(-1)。协方差分析表明,孔雀鱼体质量对静止代谢率有显著影响(p<0.05),性别对静止代谢率的影响不显著,性别和体质量对静止代谢率的影响无交互作用。孔雀鱼的个体静止代谢率(A)与体质量(M)的关系可表示为:ln A=0.858ln M-0.643(r2=0.726,n=60,p<0.05)。结果提示,尽管孔雀鱼发育非常迅速,但代谢尺度指数仍在文献报道范围内,体质量与代谢率的关系并无特殊性;孔雀鱼的特定体质量静止代谢率高于文献报道的其他鱼类,这可能与该鱼世代周期短、进化速度快有关。The resting metabolic rate（RMR）of 60guppies（Poecilia reticulata）individuals with different body mass were measured at 25 ℃.The results showed that the RMR of males（body size rang 0.16 to 1.15g）and females（body size rang 0.16 to 2.13g）were 0.03 to 0.37mg·h-1and 0.03 to 0.44 mg·h-1,respectively.The RMR was significantly influenced by body mass（p〈0.05）,rather than by neither gender nor the interaction effect between body mass and gender.The equation of the relationship between the individual RMR（A）and body mass（M）was ln A=0.858 ln M-0.643（r2=0.726,n=60,p〈0.05）.The results suggest that although guppy grows very rapidly,its scaling exponent is within the range reported by the previous literatures,without special relationship between Mand A.The guppy has higher mass-specific metabolic rates than those of other fish reported in the literatures,which may be related with its short generation cycle and rapid evolution.

关 键 词：孔雀鱼 体质量 代谢率 

分 类 号：Q955[生物学—动物学]