Overview

Comprehensive Description

Biology

Rare (Ref. 12225). Possesses powerful dentition that can cause serious bites.
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Distribution

Orinoco River basin, northern and eastern Guiana Sheild rivers; tributaries of lower Amazon: Brazil, French Guiana, Guyana, Suriname and Venezuela.
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South America: Orinoco River basin, north and eastern Guiana Shield rivers; tributaries of the lower Amazon River.
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Physical Description

Size

Maximum size: 200 mm ---
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Max. size

20.0 cm TL (male/unsexed; (Ref. 12225))
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Ecology

Habitat

Environment

benthopelagic; freshwater
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Pygopristis denticulata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
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: 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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Wikipedia

Pygopristis denticulata

Pygopristis denticulata is a species of piranha. It is a rare South American fish found in the Orinoco River basin, north and eastern Guiana Shield rivers, and tributaries of the lower Amazon River.[1] Specimens of this species is frequently found in acid clear or black waters. They usually feed on aquatic insects, small fish, and fruits.[2]

P. denticulata has pentacuspid teeth and a middle cusp that is usually only slightly larger than the other cusps. This is unlike other piranha, which have tricuspid teeth with a larger middle cusp, making the teeth appear triangular.[3]

P. denticulata grows to about 20.0 cm (7.9 in) in TL.[1] It has 62 chromosomes.[3] This fish possesses powerful dentition that can cause serious bites. It has scales.[1]

References[edit]

  1. ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2007). "Pygopristis denticulata" in FishBase. July 2007 version.
  2. ^ Machado-Allison, A. and W. Fink (1996). Los Peces Caribes de Venezuela. Diagnosis, claves, aspectos ecológicos y evolutivos. Universidad Central de Venezuela, CDCV. (Colección Monografías), Caracas, ISBN 980-00-0967-1, 149p.
  3. ^ a b Freeman, Barbie; Nico, Leo G.; Osentoski, Matthew; Jelks, Howard L.; Collins, Timothy M. (2007). "Molecular systematics of Serrasalmidae: Deciphering the identities of piranha species and unraveling their evolutionary histories" (PDF). Zootaxa 1484: 1–38. doi:10.1046/j.1439-0469.2000.384132.x. 


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