Relationships between Water, Otolith, and Scale Chemistries of Westslope Cutthroat Trout from the Coeur d'Alene River, Idaho: The Potential Application of Hard-Part Chemistry to Describe Movements in Freshwater
Relationships between Water, Otolith, and Scale Chemistries of Westslope Cutthroat Trout from the Coeur d'Alene River, Idaho: The Potential Application of Hard-Part Chemistry to Describe Movements in Freshwater
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爱达荷州科达伦河西坡切喉鳟鱼的水、耳石和鳞片化学之间的关系：硬部分化学描述淡水运动的潜在应用
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发表时间：
2003
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通讯作者：
Cynthia M. Jones
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作者：
Brian K. Wells;B. Rieman;James L. Clayton;Donna L. Horan;Cynthia M. Jones
翻译后摘要我们量化镁：钙，锰：钙，锶：钙，钡：钙摩尔比从代表2000年夏季生长季节的耳石和规模从1岁的西坡切喉鳟鱼Oncorhyncus clarki lewisi收集三个流在Coeur d'Alene河，爱达荷州，系统。我们还量化了镁：钙，锶：钙，钡：钙的摩尔比在水中在2000年夏天，并使用回归模型同化的各种比例的耳石和鳞片。耳石和鳞片化学成分与水中的Sr：Ca和Ba：Ca比呈线性相关。分配系数的Sr：Ca比率在耳石和鳞片是在这个淡水系统中高于实验结果从盐水环境中，我们把这些差异的生物学的盐水和淡水鱼的差异。相反，Ba：Ca分配系数在两种环境之间是相似的，这表明我们的估计是代表那些为宽范围的浓度，温度和湿度。
Abstract We quantified Mg:Ca, Mn:Ca, Sr:Ca, and Ba:Ca molar ratios from an area representing the summer 2000 growth season on otoliths and scales from 1-year-old westslope cutthroat trout Oncorhyncus clarki lewisi collected from three streams in the Coeur d'Alene River, Idaho, system. We also quantified Mg:Ca, Sr:Ca, and Ba:Ca molar ratios in the water during summer 2000 and used regressions to model the assimilation of the various ratios into the otoliths and scales. Otolith and scale chemistries were linearly related to the Sr:Ca and Ba:Ca ratios in the water. The partition coefficients for the Sr:Ca ratios in otoliths and scales are higher in this freshwater system than in experimental results from a saline environment; we attribute these differences to differences in the biology of saltwater and freshwater fish. In contrast, the Ba:Ca partition coefficients are similar between the two environments, suggesting that our estimates are representative of those for a wide range of concentrations, temperatur...