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> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Rivulinae
Eponymy: Dr Leo G Nico is an American ichthyologist. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / depth range / distribution range Ecología

; agua dulce bentopelágico; no migratorio. Tropical

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

South America: Orinoco River basin in Venezuela.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.0 cm TL macho / no sexado; (Ref. 27139)

Short description Claves de identificación | Morfología | Morfometría

Can be distinguished from all other described species of Rivulus in having elongated pectoral fins reaching to base of pelvic fins in both sexes, and in the combination of: dorsal and anal fin extending to or beyond base of caudal fin in both sexes, similar development of the rivulus spot in both sexes, elongated pelvic fins reaching beyond anal-fin origin in both sexes, and low number of scales in lateral series (26-29) (Ref. 26619).

Inhabits small forest pools (Ref. 26619). Bottom spawner, 4 months incubation (Ref. 27139).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Costa, Wilson J.E.M. | Colaboradores

Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Near Threatened (NT) (B2b(iii)); Date assessed: 07 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00977 (0.00315 - 0.03034), b=3.03 (2.77 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Laimosemion nicoi (Thomerson & Taphorn, 1992)