PLATE 28
[Illustration: FIG. 1. Electrical fishing gear used at night.]
[Illustration: FIG. 2. Pool at the upper Neosho station in which
rotenone was used, Sec. 33, T. 15 S., R. 8 E., looking downstream,
June, 1960.]
Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas · 第 95 / 119 题