Teleostei (teleosts) >
Characiformes (Characins) >
Parodontidae (Scrapetooths)
Etymology: Parodon: Latin, par = two + Latin, dens = teeth (Ref. 45335).
More on author: Kner.
Taxonomic Remarks
See Britski, 1976:436 for synonymy.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic; pH range: 6.2 - 7.2; dH range: ? - 20. Tropical; 22°C - 26°C (Ref. 2059)
South America: La Plata River basin.
Length at first maturity / Size / Weight / Age
Maturity: Lm 7.8, range 7 - 10 cm
Max length : 12.7 cm SL male/unsexed; (Ref. 38267)
Short description
Identification keys | Morphology | Morphometrics
Reported to reach around 14 cm SL (Ref. 81048).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pavanelli, C.S., 2003. Parodontidae (Parodontids). p. 46-50. 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. 38267)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01047 (0.00547 - 0.02006), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophic level (Ref. 69278) |
2.4 ±0.1 se; based on size and trophs of closest relatives |
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Generation time |
4.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resilience (Ref. 120179) |
Medium, minimum population doubling time 1.4 - 4.4 years (tm=2; k=0.27; Tmax=7). |
Fishing Vulnerability (Ref. 59153) |
Low to moderate vulnerability (34 of 100). 🛈 |