Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; ej vandrande. Temperate; 15°C - 25°C (Ref. 12468); 30°N - 28°N
North America: Rio Grande drainage in Texas in the USA, from Devils River to mouth of Rio Conchos. Also in Rio Conchos system and endorheic Rio Sauz basin in Mexico.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL hane/ej könsbestämd; (Ref. 5723)
Occurs in sloughs, backwaters, and margins of small to medium rivers (avoiding hot springs). 5 cm max TL (Ref. 5723). Not a seasonal killifish. Is difficult to maintain in aquarium (Ref. 27139).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00591 - 0.03081), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.7 ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).