>
Siluriformes (Catfishes) >
Cetopsidae (Whale catfishes) > Helogeninae
Etymology: Helogenes: Greek, helo = marsh + Greek, gene, genes = birth, race. (Helo has the "e" short) (Ref. 45335).
More on author: Günther.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce demersal; pH range: 6.0 - 7.0; dH range: ? - 15. Tropical; 22°C - 26°C (Ref. 2059)
South America: Atlantic drainages of Guyana, Suriname, and French Guiana, upper Río Orinoco and Río Negro systems in Venezuela, and Amazon Basin in Brazil, Peru, and Ecuador.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 7.9 cm SL macho/indeterminado; (Ref. 101566)
A typical inhabitant of black or clear waters, usually in forest streams with moderate to swift current flow over firm sand or gravel bottoms (Ref. 7462). Lives hidden under plants, litter or plant debris. Can easily be mistaken as a piece of dead wood when it rests on its side, motionless on the bottom. Often swims on one side in undulating movements (Ref. 35381). Feeds mainly on terrestrial insects, particularly ants (Ref. 7462). Nocturnal (Ref. 6868).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Vari, R.P. and H. Ortega, 1986. The catfishes of the neotropical Family Helogenidae (Ostariophysi: Siluroidei). Smith. Contrib. Zool. (442):20 p. (Ref. 7462)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: sem interesse
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00201 - 0.01311), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.5 ±0.50 se; based on food items.
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
🛈