Teleostei (teleosts) >
Characiformes (Characins) >
Serrasalmidae (Piranhas and pacus) > Serrasalminae
Etymology: Metynnis: Greek, meta = with, after + Greek, ynnis, -eos = ploughshare (Ref. 45335).
More on author: Cope.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic; pH range: 5.5 - 7.5; dH range: ? - 22. Tropical; 23°C - 27°C (Ref. 1672)
South America: Amazon River basin, northeastern Guiana Shield rivers.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.4 cm SL male/unsexed; (Ref. 111115); max. published weight: 205.37 g (Ref. 111115)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Assumed to be like Metynnis hypsauchen.
Zarske, A. and J. Géry, 1999. Revision der neotropischen Gattung Metynnis Cope, 1878. 1. Evaluation der Typusexemplare der nominellen Arten (Teleostei: Characiformes: Serrasalmidae). Zool. Abh. Mus. Tierk. Dresden 50(13):169-216. (Ref. 34077)
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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02884 (0.01804 - 0.04611), b=3.07 (2.94 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
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).