Road crossing designs and their impact on fish assemblages of Great Plains streams
Road crossing designs and their impact on fish assemblages of Great Plains streams
复制标题
道路交叉口设计及其对大平原溪流鱼类群落的影响
DOI:
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
C. Paukert
中科院分区:
文献类型:
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作者:
W. Bouska;C. Paukert
Abstract A mark–recapture field study was conducted to determine fish passage at 5 concrete box culverts and 5 low-water crossings (concrete slabs vented by culverts) as well as 10 control sites (below a natural riffle) in Flint Hills streams of northeastern Kansas. Additionally, we tested the upstream passage of four fish species native to Great Plains streams (Topeka shiner Notropis topeka, green sunfish Lepomis cyanellus, red shiner Cyprinella lutrensis, and southern redbelly dace Phoxinus erythrogaster) through three simulated crossing designs (box culverts, round corrugated culverts, and natural rock riffles) at water velocities of 0.1 to 1.1 m/s in an experimental stream. The field study indicated that cyprinids were twice as likely to move upstream of box culverts than low-water crossings and 1.4 times as likely to move upstream of control reaches than any crossing type. The best models indicated that the proportion of cyprinids that moved upstream increased with decreased culvert slope and length,...