Gravel Chub Erimystax x-punctatus
This species was found at 11 bioassessment sites, 0 rapid fish bioassessment sites, 7 fisheries assessment sites, and 0 fisheries presence-only assessment sites. In total, it was collected at 18 distinct sites, or 1.2% of the 1513 total sites monitored by the bioassessment program. It is the 92nd most commonly collected species.
The Gravel Chub was collected in 18 bioassessment sampling sessions and 7 fisheries assessment sessions. It was present in 0 rapid bioassessment sessions and 0 presence-only sessions.
The biological assessment program has collected a total of 161 individual Gravel Chub specimens, ranking it the #88 most collected fish.
The body is light olive-green above with silvery sides and a light blue lateral band. Its most distinctive feature is the presence of scattered "x" or "y-shaped" dark markings on its sides and back. The small, subterminal mouth is horizontal, and a barbel is present at the end of the maxillary. The eye looks large compared to the head. A complete lateral line has 38 to 43 scales. The dorsal and pelvic fin ray counts are 8 in each, while the pectoral fins vary from 13 to 16 rays, and the anal fin has 7 rays. Strongly hooked pharyngeal teeth are arranged on slender arches in a 4-4 formula. A black or dark mottled peritoneum surrounds the stomach cavity, which has a looped gut.
HUC12 watersheds where this species has been found