The nesting ecology and behavior of the hornyhead chub, Nocomis biguttatus (Kirtland) a keystone species in Allequash Creek, Wisconsin

Nocomis biguttatus built gravel nests in which it and 2 other cyprinids, Notropis cornutus and N. rubellus, spawned. Construction of nest mounds and spawning activity of hornyhead chubs was mostly during late May and early June. Nests were constructed in areas with significantly greater depths and faster currents than were generally available. Some 70% of nests were built over sand and 90% were constructed in open areas. Nest-building and spawning behavior are described. -from Author