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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335).
Eponymy: Kyle Swegles (d: c.1925) was a distributor of tropical fish and owner of the Rainbow Aquarium, Chicago. He collected the type series in the upper Rio Orinoco basin, Colombia. (Ref. 128868), visit book page.
More on author: Géry.
Issue
Taphorn (1992: 239) suggested that H. sweglesi could be a synonym of H. bentosi. However, see Weitzman & Palmer (1997e; 1998: 131).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 5.5 - 7.5; dH range: ? - 20. Tropical; 20°C - 23°C (Ref. 1672)
South America: Orinoco River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 38376)
Feeds on worms, small insects and crustaceans (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Weitzman, S.H. and L. Palmer, 1997. A new species of Hyphessobrycon (Teleostei: Characidae) from Neblina region of Venezuela and Brazil, with comments on the putative 'rosy tetra clade'. Ichthyol. Explor. Freshwat. 7(3-4):209-242. (Ref. 13676)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00683 - 0.03057), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.37 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).