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Beloniformes (Needle fishes) >
Belonidae (Needlefishes)
Etymology: Potamorrhaphis: Greek, potamos = river + Greek, rhaphis = needle (Ref. 45335).
Eponymy: Dr James Arthur Peters (1922–1972) was a zoologist who specialised in Ecuadorean herpetofauna. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce pelágico(a,os,as); intervalo de profundidade 0 - ? m. Tropical
South America: upper Orinoco and Negro River basins.
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 24.6 cm SL macho/indeterminado; (Ref. 40653)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 37 - 43; Espinhos anais: 0; Raios anais moles: 32 - 39; Vértebras: 77 - 85. Most similar to P. guianensis from which it differs most markedly in higher numbers of dorsal and anal fin rays, vertebrae, and predorsal scales. Predorsal scales 109-143, mean 130.5.
Oviparous (Ref. 205). Eggs may be found attached to objects in the water by tendrils on the egg's surface (Ref. 205).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Collette, B.B., 1982. South American freshwater needlefishes of the genus Potamorrhaphis (Beloniformes: Belonidae). Proc. Biol. Soc. Wash. 95(4):714-747. (Ref. 10994)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-2)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00123 - 0.01287), b=3.01 (2.75 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).