Overview

Comprehensive Description

Biology

Particularly abundant in coastal creeks and floodplains where it is supported by a certain salinity level. It is vulnerable to a trematode parasite which induces a characteristic cutaneous reaction. Reproduction in captivity has been successful (Ref. 12225). Maximum length questionable (Ref. 38376).
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Distribution

South America: Rivers of Guyana, Suriname, French Guiana, and Amazon River basin.
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Rivers of Guyana, Suriname, French Guiana and Amazon River basin: Brazil. French Guiana, Guyana, Peru and Suriname.
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Physical Description

Size

Maximum size: 55 mm TL
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Max. size

5.3 cm TL (male/unsexed; (Ref. 38376)); max. reported age: 4 years (Ref. 12225)
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Type Information

Holotype for Hemigrammus rodwayi
Catalog Number: USNM 163868
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1954
Locality: British Guinna, Georgetown, Guyana, South America
  • Holotype: Schultz, L. P. & Axelrod, H. R. 1955. Tropical Fish Hobbyist. 3 (3): 5, Figure on page 4.
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Paratype for Hemigrammus rodwayi
Catalog Number: USNM 163869
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1954
Locality: British Guinna, Georgetown, Guyana, South America
  • Paratype: Schultz, L. P. & Axelrod, H. R. 1955. Tropical Fish Hobbyist. 3 (3): 5, Figure on page 4.
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Cotype for Hemigrammus rodwayi
Catalog Number: USNM 66188
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Eigenmann
Year Collected: 1908
Locality: Georgetown Trenches (British Guiana), Guyana, South America
  • Cotype:
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Ecology

Habitat

Environment

benthopelagic; freshwater; pH range: 6.3; dH range: 12
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Diseases and Parasites

White spot Disease. Parasitic infestations (protozoa, worms, etc.)
  • Bassleer, G. 1997 Color guide of tropical fish diseases: on freshwater fish. Bassleer Biofish, Westmeerbeek, Belgium. 272 p. (Ref. 41805)
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Internal Worm Infection (general). Parasitic infestations (protozoa, worms, etc.)
  • Bassleer, G. 2003 The new ilustrated guide to fish diseases in ornamental tropical and pond fish. Bassleer Biofish, Stationstraat 130, 2235 Westmeerbeek, Belgium, 1st Edition, 232p. (Ref. 48502)
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Bacterial Infections (general). Bacterial diseases
  • Bassleer, G. 1997 Color guide of tropical fish diseases: on freshwater fish. Bassleer Biofish, Westmeerbeek, Belgium. 272 p. (Ref. 41805)
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Bacterial Gill Infection. Bacterial diseases
  • Bassleer, G. 2003 The new ilustrated guide to fish diseases in ornamental tropical and pond fish. Bassleer Biofish, Stationstraat 130, 2235 Westmeerbeek, Belgium, 1st Edition, 232p. (Ref. 48502)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Hemigrammus cf. rodwayi

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Statistics of barcoding coverage: Hemigrammus rodwayi

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

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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Wikipedia

Gold tetra

The gold tetra (Hemigrammus rodwayi) is a species of small freshwater fish in the family Characidae native to lowland South America,[1] where they are abundant in coastal floodplains.[2] Their name comes from a powdery golden tint on their body that is thought to be caused by internal parasites.[3] Gold tetras are peaceful, hardy, schooling community fish.[4] Gold tetras have been successfully bred in captivity.[5]

References[edit]

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