Loading...
This record has been deleted. Since it is linked to a published record, it is available here for reference purposes only.
Click here to view the deleted recordThis document has been updated. This is not the latest published version. Click here to view the latest version of the record.
Organism
(ORGA)
published: 14 Nov 2025
last updated: 18 Dec 2025
Gymnocorymbus ternetzi
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Actinopteri |
| Order | Characiformes |
| Suborder | Characoidei |
| Family | Acestrorhamphidae |
| Subfamily | Pristellinae |
| Genus | Gymnocorymbus |
| Species | Gymnocorymbus ternetzi |
- Tetragonopterus ternetzi Boulenger, 1895
-
TetraEN
-
Black tetraEN
-
Black skirt tetraEN
-
Black widowEN
-
Petticoat tetraEN
-
Albino black skirt tetraEN
-
White tetraEN
-
White skirt tetraEN
Fish
Gymnocorymbus ternetzi is a monophyletic group originated in the Rio Paraguay basin of La Plata river basin.
EN
G. ternetzi is described as a subtropical hardy pelagic fish, living in the middle and upper layers in slow freshwater such as tributaries and floodplain lakes and lagoons with abundant aquatic vegetation. It persists in waters ranging 20 and 26°C (needs a temperature of ≥24 °C to reproduce) with a pH range between 6.0 and 8.0, moderate to hard water hardness (dH between 5 and 19), and carbonate hardness between 4 and 8.
Black tetra occurs in South America from the Paraguay (La Plata) to Argentina and the Amazon Guaporé drainage in Brazil, Bolivia and Peru.
EN
- Ornamental
- Gymnocorymbus ternetzi is an omnivore, but feeds mainly on worms, small crustaceans and insects;
- The species is a schooling fish and should be kept in groups of at least 5 or 6;
- A complete mitochondrial genome of G. ternetzi has been reported to be 17,999 bp in length;
- During the domestication of tetra, the albino black skirt tetra or white tetra variant arose and showed decreased pigmentation.
- NCBI taxonomy: Gymnocorymbus ternetzi (ID 42494) [URL] [ English ]
- UniProt taxonomy: Gymnocorymbus ternetzi (ID 42494) [URL] [ English ]
- U.S. Fish & Wildlife Service: Ecological Risk Screening Summary - Black Tetra (Gymnocorymbus ternetzi) [PDF] [ English ]
- Fishbase: Gymnocorymbus ternetzi (Boulenger, 1895) - Black Tetra [URL] [ English ]
- Calaogue of Life: Gymnocorymbus ternetzi (Boulenger, 1895) [URL] [ English ]
- Zootaxa (Benine et al., 2015): Taxonomic revision and molecular phylogeny of Gymnocorymbus Eigenmann, 1908 (Teleostei, Characiformes, Characidae) [DOI] [ English ]
- The IUCN Red List of Threatened Species: Gymnocorymbus ternetzi [PDF] [ English ]
- Aquaculture Research (Çelik et al., 2011): Embryonic and larval development of black skirt tetra (Gymnocorymbus ternetzi, Boulenger, 1895) under laboratory conditions [DOI] [ English ]
- Journal of Heredity (Frankel, 2004): Inheritance of Trunk Banding in the Tetra (Gymnocorymbus ternetzi Characidae) [DOI] [ English ]
- Mitochondrial DNA Part B (Zhu et al., 2022): Complete mitogenome of Gymnocorymbus ternetzi (Characiformes: Characidae: Gymnocorymbus) and phylogenetic implications [PDF] [ English ]
| Record type | Field | Record(s) | |
|---|---|---|---|
| Living Modified Organism | Recipient Organism or Parental Organisms | 1 | |
