The sucker-mouthed minnow was common at the middle Marais des Cygnes
station but was not taken at the upper and lower stations until 1959,
when it was rare. At the middle and lower Neosho stations this fish
increased in abundance from 1957 to 1959; at the upper station,
sucker-mouthed minnows were not taken until 1959 when collections were
made on the White farm. There, the species was common immediately below
a low-head dam, but was not taken in extensive collections on the Bosch
Farm in 1959.
The species was most common immediately below riffles, or in other areas
having clean gravel bottom in the current. On 5 June, 1959, many
individuals were taken at night (11:30 p.m.) on a shallow gravel riffle
(four inches in depth) where none had been found in a collection at 5:00
p.m. on the same date.
Young-of-the-year were taken at the lower Neosho station on 24 June,
1959, and commonly thereafter in the summer.
#Notropis rubellus# (Agassiz)