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Gymnotiformes (Knifefishes) >
Rhamphichthyidae (Sand knifefishes)
Etymology: Rhamphichthys: Greek, rhamphos = bill, peak + Greek, ichthys = fish (Ref. 45335); atlanticus: atlanticus to indicate that the Pindaré-Mearim river system delivers directly to the Atlantic Ocean, not to other larger drainage..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: known only from the type locality, Viana Lake, Pindaré-Mearim river system in Brazil.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 67.3 cm SL macho/indeterminado; (Ref. 35403)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Raios dorsais (total) : 0. Anal fin uniform light brown, not hyaline, without dark bars or lines or any other kinds of marks on it. Membranous, wide swim-bladder, with visceral organs overlapping it laterally in part or completely. No caudal fin (Ref. 35403).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Triques, M.L., 1999. Three new species of Rhamphichthys Müller et Troschel, 1846 (Ostariophysi: Gymnnotiformes: Rhamphichthyidae). Rev. Fr. Aquariol. 26(1-2):1-6. (Ref. 35403)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00101 - 0.00685), b=3.05 (2.82 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (53 of 100).
