Overview

Comprehensive Description

Biology

Recorded from large rivers, in slow to moderate current at 5 to 20 m elevation. It was taken over sandy bottoms at 26°C. It seems to be principally an herbivorous fish, feeding on diatoms, seeds and other plant material (Ref. 36880).
  • Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. … 2003 Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Distribution

Central America: Lake Managua basin.
  • Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. … 2003 Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Lake Managua basin, Nicaragua.
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Physical Description

Size

Max. size

10.0 cm TL (male/unsexed; (Ref. 36880))
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Ecology

Habitat

Environment

benthopelagic; freshwater
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Trophic Strategy

Recorded from large rivers, in slow to moderate current at 5 to 20 m elevation. It was taken over sandy bottoms at 26°C. It seems to be principally an herbivorous fish, feeding on diatoms, seeds and other plant material (Ref. 36880).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Astyanax nasutus

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


There are 3 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.

GCCTGAGCTGGGATGGTTGGGACTGCTTTA---AGCCTGTTAATTCGGGCAGAGCTCGGCCAACCAGGATCCCTTCTAGGCGAT---GACCAGGTATATAATGTTCTAGTAACTGCTCATGCTTTCGTTATAATTTTCTTTATAGTAATACCCGTTATAATTGGAGGCTTTGGAAATTGGCTAATCCCACTTATA---ATTGGTGCCCCAGACATAGCCTTCCCTCGAATAAATAACATAAGTTTTTGACTTCTTCCACCATCTTTTCTTCTCCTTCTAGCATCCTCTGGGGTAGAAGCTGGGGCGGGAACAGGATGAACTGTGTACCCCCCTCTTGCTGGCAACCTTGCACATGCGGGGGCTTCCGTTGACCTA---ACTATTTTCTCACTACACTTAGCTGGTGTCTCCTCAATTTTAGGGGCAATCAACTTTATTACAACTATTATTAATATGAAACCCCCAGCTATTTCGCAATACCAGACACCCTTATTTGTCTGGGCTGTCTTAGTGACAGCTGTCCTTCTCCTTCTTTCACTCCCTGTCTTAGCAGCT---GGTATCACAATACTTCTTACAGATCGAAACCTTAATACTTCATTTTTTGACCCGGCAGGAGGTGGGGACCCTATTCTTTATCAACACCTTTTTTGATTCTTTGGCCACCCA
-- end --

Download FASTA File
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Statistics of barcoding coverage: Astyanax nasutus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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