Overview

Comprehensive Description

Biology

Occurs over sandy bottoms in rivers. Usually forms schools. Mainly diurnal (Ref. 9086). Feeds on the fruits and seeds of Moraceae, Myrtaceae, Euphorbiaceae; Coleoptera, Orthoptera, Lepidoptera, and Brachyplatystoma flavicans (Ref. 9086); and on plankton, nekton, and crustaceans (Ref. 10615).
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Distribution

South America: Amazon River basin.
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Amazon River basin: Bolivia, Brazil, Ecuador, Peru, and Venezuela.
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Physical Description

Size

Maximum size: 220 mm TL
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Max. size

16.3 cm SL (male/unsexed; (Ref. 38376)); max. published weight: 160 g (Ref. 9081)
  • Le Guenec, B. 1985 Claves longitud - peso de 38 especes de la region de Trinidad Bolivia. O.R.S.T.O.M.-Cordebeni-UTB (Trinidad-Bolivia), Inf. Cien. No. 3, 26 p. (Ref. 9081)
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Type Information

Syntype for Triportheus angulatus
Catalog Number: USNM 120253
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): L. Agassiz
Year Collected: 1865
Locality: Rio Amazonas At Parintins and Environs: Villa Bella, Amazonas, Brazil, South America
  • Syntype: Garman, S. 1890. Bulletin of the Essex Institute. 22 (1-3): 4.
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Ecology

Habitat

Environment

benthopelagic; potamodromous (Ref. 51243); freshwater; pH range: 5.0 - 9.0; depth range 0 - 5 m (Ref. 10615)
  • 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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Depth: 0 - 5m.
Recorded at 5 meters.

Habitat: pelagic.
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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

Occurs over sandy bottoms in rivers. Usually forms schools. Mainly diurnal (Ref. 9086). Feeds on the fruits and seeds of Moraceae, Myrtaceae, Euphorbiaceae; Coleoptera, Orthoptera, Lepidoptera, and Brachyplatystoma flavicans (Ref. 9086); and on plankton, nekton, and crustaceans (Ref. 10615). Omnivores (Refs. 51869, 76754).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Triportheus angulatus

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


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Triportheus angulatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 7
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: subsistence fisheries; bait: occasionally
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