The stonecat was not taken at the upper Marais des Cygnes station, and
was less abundant at the middle Marais des Cygnes station than at other
stations. The abundance of the stonecat was greatest at the lower Marais
des Cygnes station in 1957 and at the upper Neosho station in 1959. The
species increased in abundance from 1957 to 1959 in the Neosho River,
where the principal habitat was riffles over rubble bottom.
Thirty-three stonecats were marked at the upper Neosho station in 1959.
Five of these were recaptured three hours after release, all near the
point of release. One individual was taken from a riffle, fin-clipped,
and released at the foot of the next riffle downstream. When recaptured
four days later, this fish was still in the area of release.
Young-of-the-year were taken on July 1, 1959, at the lower Neosho
station.
#Noturus gyrinus# (Mitchill)