Abstract We examined the use of “edge of flood” habitats by larval silver carp during the extensive flooding that occurred in Pool 26 of the Upper Mississippi River near Alton, IL, USA and St. Louis, MO, USA during the summer of 2015. We captured over 12,700 individual fishes including eight taxa, over 12,000 of which (> 95%) were larval silver carp between 5 and 21 mm standard length. Peak catch rates occurred near the confluence of the Illinois and Mississippi rivers. These findings suggest that larval silver carp have an affinity for edge of the flood habitat and further study is needed to better understand how this affects the dynamics of this invasive species in the Mississippi River. The high catch rates observed at the confluence of the Illinois and Mississippi rivers suggests that the Illinois River is an important source of larval silver carp to the Upper Mississippi River.

中文翻译：

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洪水边缘之后：鲢鱼幼鱼对密西西比河上游系统浅水栖息地的利用

摘要 我们研究了 2015 年夏季美国伊利诺伊州奥尔顿附近密西西比河上游 26 号池和美国密苏里州圣路易斯发生大面积洪水期间鲢鱼幼体对“洪水边缘”栖息地的利用。我们捕获了超过 12,700 条鱼，包括 8 个分类群，其中超过 12,000 条 (> 95%) 是标准长度在 5 到 21 毫米之间的幼体鲢鱼。最高捕获率发生在伊利诺伊河和密西西比河的交汇处附近。这些发现表明，鲢鱼幼体对洪水栖息地的边缘具有亲和力，需要进一步研究以更好地了解这如何影响密西西比河中这种入侵物种的动态。