>
Characiformes (Characins) >
Crenuchidae (South American darters) > Crenuchinae
Etymology: Crenuchus: Greek, krenoychos = the God of running waters.
More on author: Günther.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce pelágico; pH range: 5.5 - 6.5; dH range: ? - 5. Tropical; 24°C - 28°C (Ref. 1672)
South America: Orinoco and Amazon River basins; and coastal rivers in the Guianas.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 5.7 cm TL macho / no sexado; (Ref. 37059)
Little is known of its biology in its natural environment. Unlike most Characoids, this species is typically solitary and territorial. The dimensions of the mouth confirms its predatory habits. Its food consists mainly of Ephemeroptera larvae, copepods and ostracods. In the aquarium, only the male guards the spawned eggs. About a hundred eggs are deposited on the substrate and dispersed by the male (Ref. 12225). Reproduces by laying eggs on stones or submerged leaves (Ref. 27188).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Planquette, P., P. Keith and P.-Y. Le Bail, 1996. Atlas des poissons d'eau douce de Guyane. Tome 1. Collection du Patrimoine Naturel Volume 22, MNHN, Paris & INRA, Paris. 429 p. (Ref. 12225)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
Download XML
Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00447 - 0.03086), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.3 ±0.42 se; based on food items.
Resiliencia (Referencia
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec=60).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
🛈
