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Piaractus mesopotamicus (Holmberg, 1887)

Pacu
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Image of Piaractus mesopotamicus (Pacu)
Piaractus mesopotamicus
Picture by Lovshin, L.


Brazil country information

Common names: Caranha, Pacu, Pacu branco
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Silvano, R.A.M. and A. Begossi, 2001
Importance: subsistence fisheries | Ref: Silvano, R.A.M. and A. Begossi, 2001
Aquaculture: commercial | Ref: Lovshin, L.L., 1995
Regulations: | Ref:
Uses: live export: yes;
Comments: Found in Piracicaba river (Ref. 50076). Widely farmed in Southern Brazil (Ref. 32894).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lovshin, L.L., 1995
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Piaractus: Greek, piar = fat, the side with grease of a body + Greek, aktos , ago = to carry.

Issue
See Géry (1986: 102) for more detail.

Environment: milieu / climate zone / depth range / distribution range Ecologia

; Água doce demersal; potamódromo (Ref. 51243).   Subtropical; 15°S - 38°S, 66°W - 42°W

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

South America: Paraguay-Paraná River basin.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 40.5 cm SL macho/indeterminado; (Ref. 39031); peso máx. publicado: 20.0 kg (Ref. 32894)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Dark grey to silver dorsally and laterally and white ventrally with a yellow breast.

Biologia     Glossário (p.ex. epibenthic)

Invades the flooded forests to feed on nuts and seeds which fall from trees (Ref. 32894). Reaches around 50.0 cm SL (Ref. 81048).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Assuming standard characid reproduction. Replace ASAP.

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Lovshin, L.L., 1995. The colossomids. p. 153-159. In C.E. Nash and A.J. Novotny (eds.) World animal science: production of aquatic animals: fishes. Elsevier Science, Amsterdam, The Netherlands. (Ref. 32894)

Status na Lista Vermelha da UICN (Ref. 130435)

  Quase ameaçada (NT) (A2bcde); Date assessed: 21 December 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias: espécies comerciais; Aquacultura: espécies comerciais
FAO(Aquaculture systems: produção; ; publication : search) | FishSource |

Mais informação

Trophic ecology
Itens alimentares
Diet compositions
Food consumptions
Food rations
Predadores
Ecology
Ecologia
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Frequências de comprimento
Mass conversions
Recruitments
Abundances
Life cycle
Reprodução
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvas
Dinâmica larval
Anatomy
Gill areas
Cérebros
Otólitos
Physiology
Body compositions
Nutrients
Oxygen consumptions
Tipo de natação
Swimming speeds
Visual pigment(s)
Sons de peixes
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genética
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Perfis para aquacultura
Estirpes
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
References
Referências

Ferramentas

Relatórios especiais

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Fontes da internet

Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02455 (0.01070 - 0.05632), b=3.00 (2.80 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  2.0   ±0.00 se; based on food items.
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
Categoria de preço (Ref. 80766):   Unknown.