Link from Texas State University on Lake Chubsuckers...
From that link:
Habitat Associations
Macrohabitat: Occupies ponds, oxbows, sloughs, impoundments, and similar waters of little or no flow (Wall and Gilbert 1980). More common in lake and ponds as opposed to streams (Ross 2001).
Mesohabitat: Clear water, having bottoms of sand or silt mixed with organic debris; aquatic vegetation usually present (Wall and Gilbert 1980; Werner et al. 1978; Trautman 1981). Stream habitats are characterized by moderate to slow currents in relatively deep pools (Meffe and Sheldon 1988). E. sucetta was a new species collected from Longtown Creek (tributary of the South Canadian River), in Oklahoma, in a clear, vegetated pool with rocky substrate (Pigg and Gibbs 1995). Species can tolerate low oxygen thresholds in winterkill lakes; in Michigan, lake chubsucker had a toleration level of approximately 0.4-0.3 ppm (Cooper and Washburn 1949).
Biology
Spawning season: Based on laboratory studies, March to May (later stage larvae prefer temperatures of 28-34 degrees C; Negus et al. 1987).
Spawning habitat: Phytolithophils; nonobligatory plant spawner that deposit eggs on submerged items, have late hatching larvae with cement glands in free embryos, have larvae with moderately developed respiratory structures, and have larvae that are photophobic (Simon 1999; Balon 1981). Cooper (1935) indicated that eggs were scattered over aquatic vegetation including moss, filamentous algae, and grass stubble. Carr (1942) reported an association between lake chubsuckers and largemouth bass nests and in which lake chubsuckers laid their eggs in active largemouth bass nests and the developing eggs would be protected from predators by largemouth bass.
Reproductive strategy:
Fecundity: Eggs demersal and adhesive, averaging 2 mm in diameter; hatching occurs in 6-7 days at 23-30 degrees C and in 4-5 days at 20-22 degrees C (Fuiman 1979, 1982; Kay et al. 1994). Individuals of 259-347 mm TL produce an average of 18,478 mature eggs (Shireman et al. 1978). Fertilized eggs hatch in about 72 hours at 22-25 degrees C (Hiltabran 1967).
Age at maturation: Cooper (1935) found that both sexes reach maturity in their third summer of life.
