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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Pimelodella: Diminutive latinized of greek, pimele = fat + Greek, odous, odella = little teeth (Ref. 45335); guato: Name 'guato' in honor of the indigenous Guató people who historically inhabited the type locality.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
; Água doce demersal. Tropical
South America: Brazil.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 12.8 cm SL macho/indeterminado; (Ref. 132465)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 2; Raios dorsais moles (total) : 6; Raios anais moles: 7 - 8; Vértebras: 41 - 42. This species is distinguished by the following set of characters: long maxillary barbel, reaching at least the anal-fin terminus when parallel to main body axis; supraoccipital process reaching the anterior nuchal plate; robust dorsal-fin spine, bearing small, straight spinules along three-fourths of its posterior margin; 41–42 (rarely 43 or 44) total vertebrae; body slightly darkened, dorsal fin with light brown stripe near its origin, followed by a hyaline stripe, and distal half dark and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; preoperculomandibular laterosensory canal openings at dentary not particularly large; brown midlateral stripe wide and dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; posterior margin of pectoral-fin spine bearing 13-23 large, retrorse blades along basal two-thirds; adipose fin 2.5 to 3.0 times in SL; epiphyseal branch of supraorbital canal on the head (S6) emerging as a single pore (Ref. 132465).
Body shape (shape guide): elongated; Cross section: oval.
The species inhabits shallow, moderately flowing waters with sandy substrate. They are observed to be abundant during the rainy season and is easy to catch at night (Ref. 132465).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Pierre, V. and V. Slobodian, 2024. A new species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai basin, Brazil, with a discussion regarding its distribution. Neotrop. Ichthyol. 2024; 22(1):e230110. (Ref. 132465)
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00399 - 0.01817), 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): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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