Overview

Comprehensive Description

Biology

Inhabits large free flowing clear rivers, small streams, drainage ditches and artificial ponds and impoundments (Ref. 11225). Feeds on zooplankton, detritus, higher plants and sometimes on the scales of fish. Gametogenesis takes place during the dry season in time for reproduction to begin during the rainy season (Ref. 12225). Reproduction could be carried out in captivity (Ref. 27188).
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Distribution

South America: Panama to the Amazon basin.
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Panama to the Amazon basin: Argentina, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, Trinidad and Tobago and Venezuela.
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Physical Description

Size

Maximum size: 150 mm ---
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Max. size

17.5 cm TL (male/unsexed; (Ref. 79585)); max. published weight: 91.6 g (Ref. 79585); max. reported age: 18 years (Ref. 72479)
  • Hinton 1962 Horned shark, gar, mormyriad, characin, carp, armored catfish, arowana, upside down catfish. Not given. (Ref. 72479)
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Type Information

Type for Astyanax bimaculatus
Catalog Number: USNM 1113
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Radiograph
Collector(s): T. Gill
Locality: Trinidad, W.I., Trinidad and Tobago, North America
  • Type:
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Ecology

Habitat

Environment

benthopelagic; potamodromous (Ref. 51243); freshwater; pH range: 5.5 - 7.5; dH range: 25
  • Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
  • Riede, K. 2004 Global register of migratory species - from global to regional scales. Final Report of the R&D-Projekt 808 05 081. Federal Agency for Nature Conservation, Bonn, Germany. 329 p. (Ref. 51243)
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Trophic Strategy

Opportunistic species attracted by the feeding activities of other fishes, especially those which disturb the substrate (Ref. 40396).
  • Castro, R.M.C. and L. Casatti 1997 The fish fauna from a small forest stream of the Upper Parana River Basin, southern Brazil. Ichthyol. Explor. Freshwat. 7(3/4):337-352. (Ref. 26681)
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Diseases and Parasites

Spinitectus Infestation 9. Parasitic infestations (protozoa, worms, etc.)
  • Moravec, F. 1998 Nematodes of freshwater fishes of the neotropical region. 464 p. Praha, Academy of Sciences of the Czech Republic. (Ref. 51153)
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Rhabdochona Infestation 8. Parasitic infestations (protozoa, worms, etc.)
  • Moravec, F. 1998 Nematodes of freshwater fishes of the neotropical region. 464 p. Praha, Academy of Sciences of the Czech Republic. (Ref. 51153)
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Procamallanus Infection 25. Parasitic infestations (protozoa, worms, etc.)
  • Moravec, F. 1998 Nematodes of freshwater fishes of the neotropical region. 464 p. Praha, Academy of Sciences of the Czech Republic. (Ref. 51153)
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Procamallanus Infection 10. Parasitic infestations (protozoa, worms, etc.)
  • Moravec, F. 1998 Nematodes of freshwater fishes of the neotropical region. 464 p. Praha, Academy of Sciences of the Czech Republic. (Ref. 51153)
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Paraseuratum Infestation. Parasitic infestations (protozoa, worms, etc.)
  • Moravec, F. 1998 Nematodes of freshwater fishes of the neotropical region. 464 p. Praha, Academy of Sciences of the Czech Republic. (Ref. 51153)
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Life History and Behavior

Life Expectancy

Lifespan, longevity, and ageing

Maximum longevity: 18 years (wild)
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Astyanax bimaculatus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 31 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

GCCTGAGCTGGGATGGTTGGAACTGCTTTA---AGCCTTTTAATTCGGGCGGAGCTCGGCCAACCAGGATCCCTTTTAGGCGAC---GACCAGGTTTACAATGTTCTGGTAACCGCACATGCTTTCGTTATAATTTTCTTTATAGTCATACCAGTAATAATTGGAGGCTTTGGAAATTGACTCATTCCGCTCATG---ATTGGTGCTCCAGATATAGCCTTCCCTCGGATAAACAACATAAGTTTCTGACTTCTTCCACCATCCTTCCTTCTCCTCCTAGCATCCTCCGGAGTTGAAGCTGGAGCGGGAACAGGGTGAACTGTATACCCCCCCCTTGCCGGAAACCTTGCACATGCAGGAGCCTCTGTAGACTTA---ACAATTTTTTCACTTCACTTGGCTGGTGTCTCCTCAATCTTAGGGGCAATTAACTTTATTACAACAATTATTAATATAAAACCCCCAGCTATTTCACAATACCAAACACCTTTATTTGTCTGAGCTGTATTAGTGACGGCTGTGCTCCTTCTTCTTTCACTTCCTGTCCTAGCAGCT---GGTATTACGATACTTCTTACAGATCGTAACCTTAATACTTCATTCTTTGACCCAGCAGGGGGCGGAGATCCTATTCTTTATCAACATCTCTTCTGATTCTTTGGCCACCCA
-- end --

Download FASTA File

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Statistics of barcoding coverage: Astyanax bimaculatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 180
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
  • Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott 1991 World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
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