Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Characiformes
(Characins) > Serrasalmidae
(Piranhas and pacus) > Myleinae
Etymology: Myloplus: Greek, mylos, -ou = grey mullet + Greek, plus, ploos = movement of a serpent.
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Amazon River basin, north and east Guiana Shield rivers.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.7 cm TL male/unsexed; (Ref. 111518); max. published weight: 5.0 kg (Ref. ); max. published weight: 5.0 kg
Occurs along the calm banks of main rivers and also near the rapids. During the rainy season when growth is maximal, it feeds on fruits and consumes the seeds of palm trees like Euterpa oleracea, Taralea oppositifolia, Mauritia flexuosa and other plants like Inga sp. and Psidium sp. which they crush with their strong jaws. During the dry season, their diet consists more of aquatic plants like Mourea fluviatilis and Apinagia richardiana and gastropods and fish (Ref. 12225). Its flesh is excellent but it is preferable not to consume it at the end of the rainy season because then its flesh is very high in fat (Ref. 27188).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing during copulation (Ref. 205).
Planquette, P., P. Keith and P.-Y. Le Bail, 1996. Atlas des poissons d'eau douce de Guyane. Tome 1. Collection du Patrimoine Naturel Volume 22, MNHN, Paris & INRA, Paris. 429 p. (Ref. 12225)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01905 (0.01008 - 0.03600), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for species & Genus-BS (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±0.37 se; based on food items.
Generation time: 2.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=5; k=0.44).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (25 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .