孔雀鱼产仔前后代谢水平与逃逸能力的比较  

A comparative study on the metabolic level and escape ability of guppy(Poecilia reticulata) before and after parturition

作　　者：夏继刚[1] 鲁艳[1] 付世建[1] 彭姜岚[1] 

机构地区：[1]重庆师范大学进化生理与行为学实验室重庆市动物生物学重点实验室,重庆401331

出　　处：《生态学杂志》2017年第7期1905-1909,共5页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(31300340);重庆市自然科学基金项目(cstc2015jcyj A20016)资助

摘　　要：为了探究繁殖状态对卵胎生鱼类生存适合度的影响,本文比较了孔雀鱼(Poecilia reticulata)产仔前后的静止代谢率(resting metabolic rate,RMR)、快速启动逃逸能力的变化特征以及产仔前以上生理生态参数与产仔量的关联。结果表明:产仔前实验鱼的RMR显著高于产仔后(P<0.05),并与产仔量呈显著正相关(P<0.05);产仔前后实验鱼快速启动逃逸能力相关参数无显著变化(P>0.05),产仔前最大线速度Vmax、单位时间内的质心移动位移D120 ms等均与产仔量不相关(P>0.05)。研究表明,孔雀鱼繁殖需要较大的能量投入,而快速启动逃逸能力作为生存适合度的重要参数不受繁殖状态的影响,这可能与该物种的进化策略有关。In order to investigate the effects of reproductive status on the survival fitness of ovoviviparous fish, the resting metabolic rate （RMR） and faststart escape performance of guppy （Poecilia reticulata） before and after parturition were examined. In addition, the relationships between the preparturition RMR and fecundity, and the parameters of preparturition faststart escape performance and fecundity were also determined. The preparturition RMR was found to be significantly higher than the postparturition RMR （P〈0.05）, whereas no difference was detected in faststart escape performance before and after parturition （P〉0.05）. The fecundity was positively related to the preparturition RMR （P〈0.05）, but had no correlation with the parameters of preparturition faststart escape performance （P〉0.05）. The results indicated that the reproduction of guppy increased energy burden. However, as the survival fitnessrelevant parameter, the faststart escape performance was not affected by the reproductive status. These characteristics were hypothesized to be related to the evolutionary strategy of this species.

关 键 词：静止代谢率 快速启动 产仔量 权衡 孔雀鱼 

分 类 号：S917.4[农业科学—水产科学]