Klassifizierung / Names
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Platydoras: Greek, platys = flat + Greek, doras = skin (Ref. 45335).
Eponymy: John Hancock (1808–1890) was a British naturalist, landscape architect, ornithologist and taxidermist. [...] (Ref. 128868), visit book page.
More on author: Valenciennes.
Environment: milieu / climate zone / Tiefenbereich / distribution range
Ökologie
; süßwasser demersal; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 23°C - 28°C (Ref. 1672)
South America: Guyana and eastern Brazil to Peru and Bolivia.
Size / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 15.0 cm TL Männchen/unbestimmt; (Ref. 1672)
Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 6; Afterflossenweichstrahlen: 11 - 13. The body is a little elongated, without scales but with a lateral range of 24 to 28 bony plaque. Head is large and rounded. Mouth is nearly terminal and has three pairs of barbels (Ref. 35381).
Body shape (shape guide): elongated.
Occurs in freshwater coastal swamps and the flood-prone zones of rivers. Gregarious, lives schools which may consist of several hundred fish. Hides under roots, leaves or stocks. Is known to build a nest of bubbles at the surface, defended by the males as the 'Atipas' do. In case of drought, it is reputed to being very resistant and to crawl in search of a new swamp while holding some water in its ears. Feeds on algae and debris (Ref. 35381).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Builds a bubble nest with small parts of water plants under the surface. The male guards the nest (Ref. 1672).
Piorski, N.M., J.C. Garavello, Arce H.M. and M.H. Sabaj Pérez, 2008. Platydoras brachylecis, a new species of thorny catfish (Siluriformes: Doradidae) from northeastern Brazil. Neotrop. Ichthyol. 6(3):481-494. (Ref. 79514)
IUCN Rote Liste Status (Ref. 130435: Version 2025-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell; Aquarium: Kommerziell
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00528 - 0.02384), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.0 ±0.00 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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