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Mylossoma unimaculatum (Steindachner, 1908)

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drawing shows typical species in Serrasalmidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Characiformes (Characins) > Serrasalmidae (Piranhas and pacus) > Colossomatinae
Etymology: Mylossoma: Greek, mylo = mill + Greek, soma = body (Ref. 45335).

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

Freshwater; benthopelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Brazil (restricted to the rio Tocantins-Araguaia system).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.6 cm male/unsexed; (Ref. 117280)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 37. This species is distinguished from M. aureum by having the last abdominal spine reaching the anal-fin origin or almost (vs. last abdominal spine clearly separated from anal-fin origin), vertebrae 37 (vs. 38-39), and a conspicuous black blotch on opercle (vs. black blotch absent or inconspicuous); differs from M. albiscopum by the anal-fin branched rays 28-32 (vs. 31-38), circumpeduncular scales 34-40 (vs. 28 to 36), pored lateral line scales 95-110 (vs. 74-99); differs from <>M. duriventre by the circumpeduncular scales 34-40 (vs. 30-34), pored lateral line scales 95-110 (vs. 74-97), and vertebrae 37 (vs. 35-36) (Ref. 117280).

Biology     Glossary (e.g. epibenthic)

Reported to inhabit rivers margins and lagoons, feeding primarily on leafs, fruits, seeds and invertebrates, and total spawning during the flood season (Ref. 117280)..

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Mateussi, N.T.B., C. Oliveira and C.S. Pavanelli, 2018. Taxonomic revision of the Cis-Andean species of Mylossoma Eigenmann & Kennedy, 1903 (Teleostei: Characiformes: Serrasalmidae). Zootaxa 4387(2):275-309. (Ref. 117280)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
Length-frequencies
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Maturity/Gills rel.
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References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [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).
Trophic level (Ref. 69278):  2.6   ±0.3 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 (19 of 100).