Uaru
| Uaru | ||||||||||||
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Uaru amphiacanthoides |
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| Scientific name | ||||||||||||
| Uaru | ||||||||||||
| Heckel , 1840 |
Uaru ("toad" in a Brazilian Indian language ) is a genus of the cichlids (Cichlidae)consisting of two species. The fish live in South America in the Amazon , in the Río Ucayali , in the Río Negro , Río Branco , in the Orinoco and in the lower reaches of most of the tributaries.
features
Uaru species grow to be 19 to 27 cm long. Your body is strongly flattened laterally, oval, high-backed and slightly stretched in the side view. The head and the eye are large, the mouth terminal. The teeth are small and flattened, pointed in juvenile fish, rounded in adults. The scales are relatively small, the anal fin has more than three hard rays. Young fish are gray-green and darkly marbled or have transverse bands. With a length of 10 to 12 cm change color to adult color. The basic color of adult Uaru cichlids is gray-brown, whitish-beige, yellowish or brown-orange. This shows a dark, large, wedge-shaped spot or a wide black cross band. There are no external gender differences.
Way of life
Uaru species live in small groups in clear or black water , mostly at greater depths. They feed mainly on plants, but also eat animal food. They are open brooders and lay their eggs on a solid substrate. The fry hatch after two days, are then housed in a pit and swim freely after another three days. Both parents guard and lead the boys (parent family).
External system
Uaru belongs to the tribe Heroini within the New World cichlinae and there, together with the discus fish ( Symphysodon ), Heros and Mesonauta, to a clade of high-backed cichlids.
species
- Keilfleckbuntbarsch ( Uaru amphiacanthoides Heckel, 1840)
- Venezuelan cichlid ( Uaru fernandezyepezi Stawikowski, 1989)
literature
- Erwin Schraml: Uaru. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 962.
- Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
Individual evidence
- ↑ Hernán López-Fernández, Kirk O. Winemiller, Rodney L. Honeycutt: Multilocus phylogeny and rapid radiations in Neotropical cichlid fishes (Perciformes: Cichlidae: Cichlinae) . In: Molecular Phylogenetics and Evolution , Vol. 55 (2010), Issue 3, pp. 1070-1086, ISSN 1055-7903 doi : 10.1016 / j.ympev.2010.02.020
Web links
- Uaru on Fishbase.org (English)