Actinopteri (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Fundulidae
(Topminnows and killifishes)
Etymology: Lucania: Taken from the Italian province of Lucania, near tarento (Ref. 45335); parva: Lucania (coined name without meaning); parva meaning small (Ref. 79012). More on authors: Baird & Girard.
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; pelagic-neritic; amphidromous (Ref. 51243); depth range 0 - 2 m. Subtropical; 10°C - 25°C (Ref. 2059); 43°N - 17°N, 98°W - 69°W
Western Atlantic: Massachusetts and northern Gulf of Mexico to Florida Keys in USA and northeastern Mexico. Ascends Rio Grande and Pecos River in Texas and New Mexico in USA (Ref. 5723).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm TL male/unsexed; (Ref. 37039); common length : 3.7 cm TL male/unsexed; (Ref. 12193)
Inhabits vegetated quiet water and usually swims several inches below surface of water. 7 cm max TL (Ref. 5723). Feeds on larval crustaceans (mainly cyclopoid and harpacticoid copepods), mosquito larvae, small worms, and mollusks (Ref. 79012). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Huber, J.H., 1996. Killi-Data 1996. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Atherinomorpha, Pisces). Société Française d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris, France, 399 p. (Ref. 27139)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 12.7 - 26.7, mean 23.7 °C (based on 167 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01168 - 0.04097), b=3.22 (3.06 - 3.38), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.2 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 (10 of 100) .