Linking otolith microchemistry and dendritic isoscapes to map heterogeneous production of fish across river basins
Linking otolith microchemistry and dendritic isoscapes to map heterogeneous production of fish across river basins
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DOI：
10.1002/eap.1474
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发表时间：
2017-01-01
影响因子：
5
通讯作者：
Schindler, Daniel E.
中科院分区：
文献类型：
--
作者：
Brennan, Sean R.;Schindler, Daniel E.
高度移动的物种，如溯河产卵鱼类的生产模式，往往在不同景观中表现出高度的空间和时间异质性。这种变化往往是异步的时间之间的栖息地，这稳定生产的复杂性总规模。然而，在多个尺度上明确地在空间和时间上重建生产模式仍然很困难，但对于优先考虑生境保护很重要。这对于栖息在河流流域的鱼类尤其如此，因为它们具有远距离扩散、早期生命阶段的高死亡率、复杂的种群结构和难以捉摸的生活史变异。我们开发了一种新的方法，通过整合耳石微化学和树枝状isoscape模型映射生产模式的太平洋鲑鱼在一个大的河流流域。这里提出的地理连续贝叶斯分配框架产生了高准确度（>90%）和相对高的精度（精度
Production patterns of highly mobile species, such as anadromous fish, often exhibit high spatial and temporal heterogeneity across landscapes. Such variability is often asynchronous in time among habitats, which stabilizes production at aggregate scales of complexity. Reconstructing production patterns explicitly in space and time across multiple scales, however, remains difficult but is important for prioritizing habitat conservation. This is especially true for fishes inhabiting river basins due to long-range dispersal, high mortality at early life stages, complex population structure and elusive life history variation. We develop a new approach for mapping production patterns of Pacific salmon across a large river basin by integrating otolith microchemistry and dendritic isoscape models. The geographically continuous Bayesian assignment framework presented here yielded high accuracies (>90%) and relatively high precisions (precisions