Stability of swimming performance and activity hierarchies among wild largemouth bass at multiple temporal scales: evidence for context-dependent shuffling between seasons
Stability of swimming performance and activity hierarchies among wild largemouth bass at multiple temporal scales: evidence for context-dependent shuffling between seasons
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DOI：
10.1139/z10-006
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发表时间：
2010-03-01
期刊：
影响因子：
--
通讯作者：
Cooke, S. J.
中科院分区：
文献类型：
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作者：
Hanson, K. C.;Hasler, C. T.;Cooke, S. J.
许多分类群的运动性能的研究表明，个体形成了稳定的有机体性能等级。虽然硬骨鱼的实验室研究一直证明了游泳性能的个体可重复性，但这种现象很少在实地研究，也从未跨多年进行过研究。使用亚米级精度的全湖声学遥测阵列，我们评估了在一年中的四个季节（秋季，冬季，春季和夏季）内，这些季节之间以及2年冬季之间的游泳性能（每日行驶距离和平均每日游泳速度）的两个指标的个体可重复性。大口鲈鱼（Micropterus salmoides（Lacepede，1802年））形成稳定的性能等级，除春季和排名中没有性别特异性差异。个人游泳性能是不可重复的季节之间在1年内或跨多个冬季。环境和内在生物条件的季节性变化似乎会导致性能等级的重新洗牌，这可能反映了生物体生理学的个体差异。
Laboratory-based studies of locomotory performance in many taxa have noted that individuals form stable hierarchies of organismal performance. Though laboratory studies of teleost fishes have consistently demonstrated individual repeatability of swimming performance, this phenomenon has rarely been studied in the field and never across multiple years. Using a whole-lake acoustic telemetry array with submetre accuracy, we assessed the individual repeatability of two metrics of swimming performance (daily distance traveled and mean daily swimming speed) within four seasons during a year (fall, winter, spring, and summer), among these seasons, and between winters of 2 years. Largemouth bass (Micropterus salmoides (Lacepede, 1802)) formed stable performance hierarchies within seasons except spring and no sexspecific differences in rankings were noted. Individual swimming performance was not repeatable among seasons during 1 year or across multiple winters. Seasonal changes in environmental and intrinsic biological conditions appear to result in a reshuffling of performance hierarchies, perhaps reflecting individual differences in organismal physiology.