Classificação / Names
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Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Pimelodus: Greek, pimele = fat + Greek, odous = teeth (Ref. 45335); microstoma: Named for Heraldo A. Britsky (Museu de Zoologia da Universidade de São Paulo)..
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Amazon River basin (Ref. 36506) and upper rio Paraná (Ref. 87365).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 33.0 cm SL macho/indeterminado; (Ref. 114987); peso máx. publicado: 435.00 g (Ref. 114987)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 2; Raios dorsais (total) : 6; Raios anais : 11 - 13; Vértebras: 43. Distinguished by the following combination of characters: small dots irregularly placed (forming 8-9 rows) and most developed in the anterior two thirds of body; the mouth with thick striated lips; an enlarged posterior branch of the dorsal premaxillary process synchondrally articulated with the lateroanterior margin of mesethmoid; a right-angled posterolateral margin of mesethmoid; the exposed centra of the 7th vertebrae; and a large pharyngobranchial 3 with a well developed dorsal crest. Differs from P. fur in possessing more gill rakers on the first arch (19-22 vs. 16-18) and a wider mouth (32.0-35.1% HL vs. 24.6--30); and from P. absconditus in having a larger interorbital distance (22.2-29.2% HL vs. 18.6-22.7), a relatively smaller ratio between orbital diameter and interorbital width (70.8-115.0 vs. 104.1-148.9); a shallower body (19.0-24.5% SL vs. 21.6-26.9), a shorter head (25.8-28.9% SL vs. 27.5-30.8), a smaller predorsal length (36.2-39.9% SL vs. 38.7-42.9) and a smaller prepelvic length (47.4-51.0% SL vs. 49.3-53.1). Vomerine tooth plates occasionally develop in P. heroldi while they are always present in P. absconditus and absent in P. fur (Ref. 41259).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Lundberg, J.G. and M.W. Littmann, 2003. Pimelodidae (Long-whiskered catfishes). p. 432-446. 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. 36506)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00383 - 0.01090), b=3.11 (2.97 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.3 ±0.6 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
