Bicuda
| Bicuda | ||||||||||||
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Bicuda ( Boulengerella cuvieri ) |
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| Scientific name | ||||||||||||
| Boulengerella cuvieri | ||||||||||||
| Spix & Agassiz , 1829 |
The bicuda ( Boulengerella cuvieri ), engl. Orange Tailed Pike Characin, is one of the predatory fish of tropical South America.
morphology
The bicuda, also called piakoko, pilapoukou, pirapoucou or wayabra, can be up to 88 centimeters long and weigh up to six kilograms. The largest bicuda caught was caught in the Teles Pires River in the Brazilian state of Mato Grosso and weighed 6.8 kilograms. He has the following
Fin formula : dorsal 10–11, anal 9–11.
The number of vertebrae is 48 - 49. The position of its dorsal fin and pigmentation distinguish it from other pike tetra species such as B. lucius and B. xyrekes .
distribution
Boulengerella cuvieri is native to the Amazon in Peru and Brazil , the Orinoco in Colombia and Venezuela , the tributaries of the Amazon such as Rio Tocantins , Rio Araguaia , Rio Negro , Rio Madeira and others as far as Bolivia . He is also in Essequibo in Guyana , Suriname and French Guiana common. Also in the Oiapoque on the border with the Brazilian state of Amapá. It is said to have been caught even in the south in the Rio Paraná.
Way of life
The bicuda lives pelagic in fresh water and likes to hang around in fast-flowing water near rapids, where it lurks in the near-surface water behind rocks or obstacles for prey swimming by. Boulengerella cuvieri feeds mainly on fish. Smaller specimens also stay in the stagnant water of lakes or bays and form smaller groups and schools there. It occurs in tropical waters with water temperatures of 23 to 28 ° C.
use
As a food fish of secondary importance, a popular sport fish because of its size and attack behavior. Pike tetra species are also kept as ornamental fish in aquariums.
literature
- William Eschmeyer: Catalog of Fishes . Special Publication of the Center for Biodiversity Research and Information, Vol. 1-3., 1998 California Academy of Sciences, San Francisco, California, USA, ISBN 0-940228-47-5 .
- GB Helfman, Collette Facey: The diversity of fishes . Blackwell Science, Malden, Massachusetts, USA, 1997.
- P.Moyle, J. Cech: Fishes: An Introduction to Ichthyology , 4th Edition, Upper Saddle River, New Jersey, USA, Prentice-Hall, 2000.
- A. Wheeler: The World Encyclopedia of Fishes , 2nd Edition, London, MacDonald, 1985.
Individual evidence
- ↑ its caudal fin has a reddish-orange border
- ↑ a b c d Bicuda on Fishbase.org (English)
- ↑ Archive link ( Memento of the original from October 28, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archive link ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ http://www.acuteangling.com/Exotic/amazon-bicuda.html
Web links
- Bicuda on Fishbase.org (English)