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Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa
> Siluriformes (Catfishes) > Heptapteridae (Three-barbeled catfishes)
Etymology: Pimelodella:Diminutive latinized of greek, pimele = fat + Greek, odous, odella = little teeth (Ref. 45335); humeralis:Named for the conspicuous dark blotch in the humeral area, a character not observed in any other nominal species of Pimelodella; an adjective.
Environment: milieu / climate zone / intervalo de profundidade / distribution range Ecologia
Maturidade: Lm? range ? - ? cm Max length : 95.8 cm TL macho/indeterminado; (Ref. 118150)
Descrição breve Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 1; Raios dorsais moles (total) : 6; Espinhos anais: 4; Raios anais moles: 10 - 11; Vértebras: 47 - 49. The species is distinguished from its congeners by the following set of characters: with a dark anteriorly oblique blotch in the humeral region, its anterior limit slightly ahead of vertical through the spinelet, and its posterior limit at vertical through the base of second branched dorsal-fin ray; 47-49 total vertebrae; 8-11 retrorse triangular, broad-based and strongly inclined
dentations confined to basal three-fourths of pectoral-fin spine posterior margin; presence of an unpigmented region dorsally and ventrally adjacent to the dark midlateral stripe; maxillary barbels reaching at least the caudal fin insertion; the longest ray of dorsal-fin 18.7-22.5% SL; subequal caudal-fin lobes; dark midlateral stripe narrow, from pseudotympanum to the caudal-fin insertion, dorsal region of body without dark stripes; dorsal fin with hyaline stripe near base, followed distally by a dark stripe, then another hyaline stripe and distalmost two-fifths dark (Ref. 118150).
Body shape (shape guide): elongated; Cross section: oval.
Collected along a sandy beach in the middle stretch of the river. Water parameters during the collection event were: 26.1-26.7ºC; pH 4.25-4.46; conductivity 76-77 mS. (Ref. 118150).
Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Slobodian, V., A. Akama and G.M. Dutra, 2017. A new species of Pimelodella (Siluriformes: Heptapteridae) from the Guiana Shield, Brazil. Zootaxa 4338(1):85-100. (Ref. 118150)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-1)
Ecologia Trófica Food items (preys) Composição da dieta Consumo alimentar Food rations Predadores
Ecologia Ecologia
Home ranges
Population dynamics Parâmetros de crescimento Max. ages / sizes Length-weight rel. Length-length rel. Frequência de comprimento Mass conversion Recrutamento Abundância
Life cycle Reprodução Maturidade Maturity/Gills rel. Fecundidade Desova Spawning aggregations Ovos Desenvolvimento dos ovos Larvas Dinâmica larvar
Physiology Body composition Nutrients Consumo de oxigénio Tipo de natação Velocidade de natação Visual pigments Fish sound Diseases & Parasites Toxicity (LC50s)
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00397 - 0.01825), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278): 4.0 ±0.6 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179): Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153): High vulnerability (58 of 100). 🛈
