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Characiformes (Characins) >
Lebiasinidae (Pencilfishes) > Pyrrhulininae
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
Issue
The most recent distributional records were published by Weitzman & Weitzman (1982: Fig. 229). Most recent systematic description by Weitzman (1966). Occasionally exported as an aquarium fish, Weitzman et al. (2001).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico; pH range: 5.5 - 7.0; dH range: ? - 4. Tropical; 23°C - 27°C (Ref. 1672)
South America: Coastal rivers of Suriname and French Guiana.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL macho/indeterminado; (Ref. 37104)
Gregarious. Forms schools of about a dozen individuals. Frequently occurs upstream in counter current zones. Is an omnivore with a tendency to feed on insects (Ref. 12225). Crepuscular. Appreciated by aquarist notably for its tendency to live in groups and for it habit of swimming with the body oriented upwards. Reproduces in captivity. The spawned eggs, which are fixed to vegetal substrate, do not receive parental care (Ref. 27188).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. 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. 37104)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-2)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; Aquacultura: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
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=0.00631 (0.00270 - 0.01474), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.2 ±0.40 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).