Classification / Names
Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
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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); 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 / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; pH range: 4.3 - 4.5. Tropical; 26°C - 27°C (Ref. 118150)
South America: Brazil.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 95.8 cm TL hane/ej könsbestämd; (Ref. 118150)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 1; Mjukstrålar i ryggfenan (totalt) : 6; Taggstrålar i analfenan: 4; Mjukstrålar i analfenan: 10 - 11; Ryggkotor: 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).
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
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00383 - 0.01808), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.0 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
