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Host Usage and Evidence of Chestnut Lamprey Distribution in Selected Arkansas Streams

机译:选定的阿肯色州流中栗子羊斑分布的主机使用和证据

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We documented distributional evidence of the parasitic fish Ichthyomyzon castaneus (Chestnut Lamprey) in selected Arkansas streams to provide information on host usage and selection of attachment sites. The species was at one point considered common in Arkansas streams, yet our sampling using boat electrofishing during late summer and fall collected Chestnut Lampreys in only 3 of the 12 streams for a total of just 8 individuals. We found evidence of Chestnut Lamprey parasitism in 7 of the 12 streams. Of the 2166 nonlamprey fishes collected, 11 individuals (0.5%) from 4 species bore evidence of Chestnut Lamprey parasitism. The most frequently parasitized host was the large-bodied, non-native Cyprinus carpio (Common Carp). There were no obvious patterns in the attachment/wound site location of parasitized fish. Further surveys of Arkansas streams are needed to evaluate trends in Chestnut Lamprey abundance and distribution.
机译:我们记录了选定的阿肯色州流中寄生鱼类鱼ICHYOMYZON CASTANES(CENTSNUT LAMPHEY)的分布证据,以提供有关宿主使用和选择附件网站的信息。 这些物种在阿肯色州溪流中常见的一点,但我们在深夏天和落后的船上闪电船只在12个溪流中只有3个中只有8个人的应用。 我们发现了12个溪流中的7个栗子羊斑寄生寄生的证据。 在收集的2166个非洋红鱼类中,来自4种栗子柳腮腺寄生症的4种钻孔证据的11个人(0.5%)。 最常见的寄生宿主是大型尸体,非本地塞浦路斯鲤鱼(普通鲤鱼)。 寄生鱼的附着/伤口位置没有明显的模式。 需要进一步调查阿肯色州溪流,以评估栗子Lampley丰富和分布的趋势。

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