Discharge-dependent covariation patterns in the population dynamics of brown trout (Salmo trutta) within a Cantabrian river drainage
Discharge-dependent covariation patterns in the population dynamics of brown trout (Salmo trutta) within a Cantabrian river drainage
复制标题
坎塔布连河流域内褐鳟（Salmo trutta）种群动态的流量依赖性协变模式
DOI：
10.1139/f04-118
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
J. Lobón‐Cervià
中科院分区：
文献类型：
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作者：
J. Lobón‐Cervià
在整个里奥埃斯瓦（西班牙西北部）的褐鳟鱼（萨尔莫trutta）的种群动态的空间协变模式进行了探讨，通过使用从股票的招聘关系的残差作为指标的存活率的产卵招募（STR），产卵队列大小（STC），产卵产卵（STS）。正相关的成对比较生存率之间的高度显着的时空变化STC（74.3%）和STS（51.5%）解释STR的变化提供了证据，持续的空间协变整个河流流域在整个生命周期。分裂线回归拟合的存活率与河流排放量在3月（鳟鱼出现时）强调的重要性，放电期间，或刚刚出现后，鳟鱼作为一个主要的决定因素招聘的影响反映在人口的一生，并强调环境过程和褐鳟鱼动态之间的同步性。招聘的同步性是由...
Patterns of spatial covariation in the population dynamics of brown trout (Salmo trutta) across Rio Esva (northwestern Spain) were explored by using the residuals from stockrecruitment relationships as indices of survival rates of spawner-to-recruit (STR), spawner-to-cohort size (STC), and spawner-to-spawner (STS). Positive correlations in pairwise comparisons among survival rates together with highly significant spatiotemporal variation in STC (74.3%) and STS (51.5%) explained by variation in STR provided evidence for persistent spatial covariation across the river drainage during the whole lifetime. Split-line regressions fitted to the survival rates versus river discharge in March (when trout emerge) highlighted the importance of discharge during, or just after, trout emergence as a major determinant of recruitment whose effects are reflected in the population over the lifetime and emphasized the synchrony between environmental processes and brown trout dynamics. Synchrony in recruitment is caused by ...