Teleostei (teleosts) >
Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Macrhybopsis: Greek, makros = great + Greek, ybos, -e, -on = rounded + Greek, opsis = appearance (Ref. 45335).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; potamodromous (Ref. 126106). Subtropical
North America: Mississippi River basin from eastern Ohio to southern Minnesota and Nebraska south to Louisiana; Wolf River (Lake Michigan drainage) in Wisconsin; Gulf drainages from Mississippi River in Louisiana to Lavaca River in Texas, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.6 cm TL male/unsexed; (Ref. 86798)
Dorsal spines (total): 0; Dorsal soft rays (total): 8; Anal spines: 0; Anal soft rays: 7. Sides of the body light tan or silvery with numerous black pepper-like spots. Belly white. Fins clear. Shape of the body is fusiform with the ventral area somewhat dorso-ventrally flattened. Mouth inferior with any teeth, small, but conspicuous barbels at the corners of the mouth (Ref 53793).
Body shape (shape guide): elongated.
Adults inhabit sand and gravel runs of small to large rivers (Ref. 86798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00256 - 0.01076), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (21 of 100). 🛈 |