Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Rivulinae
Etymology: Rivulus: Latin, rivus = stream (Ref. 45335).
Eponymy: Erhard Roloff (1903–1980) was a German aquarist and amateur ichthyologist. [...] (Ref. 128868), visit book page.

Issue
Incertae sedis: presently not possible to assign to any genus until a complete set of morphological and molecular data can be analysed (Ref. 89845).

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

; agua dulce bentopelágico; no migratorio. Tropical; 20°C - 26°C (Ref. 2060)

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

Central America: Dominican Republic.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.5 cm TL macho / no sexado; (Ref. 36579)

Inhabits headwater streams. Associates with Poecilia and Limia species in small, sand-bottomed creeks with fast currents (Ref. 13498). Not a seasonal killifish. Is difficult to maintain in aquarium (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 2024-1)

Near Threatened (NT) (B1b(iii)); Date assessed: 29 May 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesquerías: comercial; Acuario: Comercial

FAO - Publication: search | FishSource |

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Trophic ecology
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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [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): 3.2 ±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).

Price category (Ref. 80766): Unknown.

Rivulus roloffi Roloff, 1938