Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 4.0 - 6.5; dH range: 6 - 10. Subtropical; 18°C - 24°C (Ref. 13614)
South America: La Plata and Uruguay River basins and coastal drainages of southern Brazi.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 26.0 cm SL male/unsexed; (Ref. 116915)
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00443 - 0.01132), b=2.92 (2.79 - 3.05), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).