留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
曾令清, 付成, 付世建. 鲫幼鱼游泳运动能力的个体变异与表型关联[J]. 水生生物学报, 2018, 42(3): 561-570. DOI: 10.7541/2018.070
引用本文: 曾令清, 付成, 付世建. 鲫幼鱼游泳运动能力的个体变异与表型关联[J]. 水生生物学报, 2018, 42(3): 561-570. DOI: 10.7541/2018.070
ZENG Ling-Qing, FU Cheng, FU Shi-Jian. INDIVIDUAL VARIATION AND PHENOTYPIC CORRELATIONS IN SWIMMING PERFORMANCE OF JUVENILE CRUCIAN CARP[J]. ACTA HYDROBIOLOGICA SINICA, 2018, 42(3): 561-570. DOI: 10.7541/2018.070
Citation: ZENG Ling-Qing, FU Cheng, FU Shi-Jian. INDIVIDUAL VARIATION AND PHENOTYPIC CORRELATIONS IN SWIMMING PERFORMANCE OF JUVENILE CRUCIAN CARP[J]. ACTA HYDROBIOLOGICA SINICA, 2018, 42(3): 561-570. DOI: 10.7541/2018.070

鲫幼鱼游泳运动能力的个体变异与表型关联

INDIVIDUAL VARIATION AND PHENOTYPIC CORRELATIONS IN SWIMMING PERFORMANCE OF JUVENILE CRUCIAN CARP

  • 摘要: 为考察鲤科鱼类运动能力的个体变异和表型关联及不同加速度对匀加速游泳能力的影响, 研究在(25±0.5)℃条件下测定鲫(Carassius auratus)幼鱼的静止代谢率(Resting metabolic rate, RMR), 通过临界游泳速度(Critical swimming speed, Ucrit)法和过量耗氧(EPOC)法获取实验鱼的最大代谢率(Maximum metabolic rate, MMR)、代谢空间(Aerobic scope, AS=MMR-RMR)、相对代谢空间(Factorial aerobic scope, FAS=MMR/RMR)、Ucrit及步法转换速度(Gait transition speed, Ugt), 并在不同加速度(0.083、0.167、0.250、0.333 cm/s2)下测定鲫幼鱼的匀加速游泳能力(Constant accelerated test, Ucat)和Ugt。研究发现: 鲫幼鱼的MMR和AS与Ucrit均呈正相关, 但RMR与Ucrit不相关; 能量代谢参数(MMR、AS、RMR)与Ugt不相关。Ucrit法获取的MMR、AS、FAS与EPOC法均无平均值的显著性差异, 但2种方法获得的上述参数具有较高的个体重复性; 鲫幼鱼的能量代谢参数之间存在表型关联并且关联方向不尽相同。鲫幼鱼的UcritUgt均小于各加速度下的UcatUgt, 加速度对Ucat测定无影响但对Ugt有影响。鲫幼鱼的UgtUcritUcat呈正相关, 并且其匀加速游泳能力参数在不同加速度下保持较高的重复性。除0.333 cm/s2外, 其他加速度下鲫幼鱼Ucat的无氧代谢组分(Ucat-Ugt)与Ucat呈正相关; 然而, 鲫幼鱼的有氧代谢组分(Ugt)与无氧代谢组分(Ucat-Ugt)呈负相关。研究表明: Ucrit法和EPOC法诱导鲫幼鱼的有氧代谢能力无方法学差异; 鲫幼鱼的能量代谢存在表型关联, 其匀加速游泳能力具有稳定个体差异, 并且该种鱼的有氧代谢与无氧代谢存在权衡。

     

    Abstract: The swimming ability is a fundamental organismal trait to influence growth, survival and even the Darwinian fitness of fish. Energy metabolism involves oxygen uptake, locomotor capacity includes aerobic swimming performance and anaerobic swimming performance, which exhibits great variations in these two physiological functional traits. Trade-off may occur when these two traits can not be optimized simultaneously since aerobic and anaerobic swimming performance pose conflicting demands on the same morphological feature of design. The present study examined the intra-individual variations and phenotypic trait correlations of swimming ability of the cyprinid fish, and investigated the effects of different acceleration speed on the constant acceleration swimming capacity in the cyprinid fish. Swimming performance of the juvenile crucian carp (Carassius auratus) including critical swimming speed (Ucrit), and gait transition speed (Ugt) was performed in a Ucrit test. The metabolic rates including resting metabolic rate (RMR), maximum metabolic rate (MMR), aerobic scope (AS=MMR–RMR) as well as factorial aerobic scope (FAS=MMR/RMR) were measured by both of theUcrit test and the test of excess post-exercise oxygen consumption (EPOC). A constant acceleration test (Ucat) was employed to examine the Ucat and Ugt in the juvenile crucian carp at four acceleration rates (0.083, 0.167, 0.250 and 0.333 cm/s2). Our study found that Ucrit were correlated with MMR and AS with the exception of RMR while Ugt was not related to any parameters of metabolic rates (MMR, AS and RMR) in the juvenile crucian carp. There were no significant difference in parameter average of metabolic traits (MMR, AS and FAS) between two induced exercise methods, and high repeatability was detected in intra-individual level between the two methods. Distinct correlations were found among traits of metabolism. The Ucrit and Ugt conducted by Ucrit test were smaller than those conducted by Ucat test. The acceleration rate had a determinable influence on Ucat but not Ugt. Ugt correlated positively with either Ucrit or Ucat and the constant acceleration swimming capacity had repeatability among four acceleration rates. Ucat was positively correlated to the anaerobic metabolism contribution (UcatUgt) by the acceleration swimming test at three acceleration rates with the exception of 0.333 cm/s2. However, the aerobic metabolic capacity (Ugt) was negatively related to the anaerobic metabolic capacity (UcatUgt) in the juvenile crucian carp by the Ucat test. The study suggested that no methodological difference could be found in aerobic capacity by the test of Ucrit and EPOC, and that correlation among traits of energy metabolism and constant individual difference in acceleration swimming performance could be found in the juvenile crucian carp. Performance trade-off was detectable between aerobic metabolic capacity and anaerobic metabolic capacity in this species.

     

/

返回文章
返回