Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Leuciscinae
Etymology: Lythrurus: Greek, lythron = blood + Greek, oura = tail; the red breeding colours in most members of this genus (Ref. 45335); umbratilis: From the word umbra, meaning shade (Ref. 10294).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Temperate; 44°N - 31°N
North America: Great Lakes and Mississippi River basins in western New York, USA and southern Ontario, Canada to southeastern Minnesota and south to Louisiana, USA; Gulf drainages west of Mississippi River to Trinity and San Jacinto rivers in Texas, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 3.0  range ? - ? cm
Max length : 8.8 cm TL male/unsexed; (Ref. 10294); common length : 5.4 cm TL male/unsexed; (Ref. 12193); max. reported age: 3 years (Ref. 12193)
Occurs in quiet to flowing pools (often turbid) of headwaters, creeks, and small to medium rivers (Ref. 86798). Also inhabits small, warm and low gradient streams. Oviparous, open substratum spawners (Ref. 205, 52559).
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. 115185)
CITES (Ref. 115941)
Threat to humans
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00307 - 0.01559), b=3.08 (2.89 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.43 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (tm=1; tmax=3).
Prior r = 0.61, 2 SD range = 0.23 - 1.60, log(r) = -0.49, SD log(r) = 0.48, Based on: 1 tgen, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .