Actinopteri (ray-finned fishes) > Perciformes/Percoidei
(Perchs) > Percidae
(Perches) > Etheostomatinae
Etymology: Ammocrypta: Greek, ammos = sand + Greek, kryptos = hidden (Ref. 45335); vivax: vivax, a variation of vivious meaning vigorous (Ref. 10294)
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range - m (Ref. ), usually - m (Ref. ). Subtropical; 0°C - ; 38°N - 30°N
North America: Mississippi River basin from western Kentucky and southeastern Missouri south to southern Mississippi and west to eastern Oklahoma and Texas in the USA, and in Gulf drainages from Pascagoula River in Mississippi to San Jacinto River in Texas.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.3 cm TL male/unsexed; (Ref. 5723); common length : 5.4 cm TL male/unsexed; (Ref. 12193)
Inhabits sandy runs of creeks, small to medium rivers (Ref. 5723) and streams (Ref. 10294). Feeds mainly on midge larvae and entomostracans (Ref. 79012).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p. (Ref. 3814)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00236 - 0.01278), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 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.).
Vulnerability (Ref. 59153
): Low vulnerability (15 of 100) .