Brycon
Brycon hilarii
Brycon is a widespread genus of fish the Characins ( Characiformes ) in South America.
Features
The fish are ten centimeters to over half a meter long. A characteristic feature of the genus is the dentition, consisting of a pair of large, conical teeth and laterally adjoining it smaller teeth in Unterkiefe.
Dissemination
The genus Brycon is widespread in Central and South America with emphasis in the Amazon and the Paraná River system. Brycon hilarii has, while predominantly found in the rivers of the Brazilian coast in the Mata Atlântica its main occurrence in the river basin of the Rio Paraná and Rio Paraguay Brycon Opalinus. Brycon amazonicus comes from the Amazon basin. Very often he is also in the Rio Tocantins and Araguaia to find. Brycon insignis lives in rivers of the Brazilian state of Rio Grande do Sul.
Nutrition
Most species of the genus Brycon are vegetarian and feed on leaves, fruits and plant seeds.
Way of life
Piraputangas and Matrinxãs enjoy keeping in the densely vegetated shore region of large rivers, where they take mainly vegetable food. In clear waters are frequently observed under overhanging trees and bushes, large schools and schools of the two species in the riparian zone. The Matrinxã develops with increasing size for omnivores who likes to approach takes food in the form of small insects. During the dry period even is mainly animal food, such as Small fish captured.
Species
So far the genus Brycon was 43 described:
- Brycon alburnus ( Günther, 1860)
- Brycon amazonicus ( Spix & Agassiz, 1829)
- Brycon argenteus Meek & Hildebrand, 1913
- Brycon atrocaudatus ( Kner, 1863)
- Brycon behreae Hildebrand, 1938
- Brycon bicolor Pellegrin, 1909
- Brycon cephalus ( Günther, 1869)
- Brycon chagrensis ( Kner, 1863)
- Brycon coquenani Steindachner, 1915
- Brycon costaricensis Angulo & Gracian - Negrete, 2013
- Brycon coxeyi Fowler, 1943
- Brycon dentex Günther, 1860
- Brycon devillei ( Castelnau, 1855)
- Brycon falcatus Müller & Troschel, 1844
- Brycon ferox Steindachner, 1877
- Brycon fowleri Dahl, 1955
- Brycon guatemalensis Regan, 1908
- Brycon Henni Eigenmann, 1913
- Brycon hilarii ( Valenciennes, 1850)
- Brycon insignis Steindachner, 1877
- Brycon labiatus Steindachner, 1879
- Brycon medemi Dahl, 1960
- Brycon meeki Eigenmann & Hildebrand, 1918
- Brycon melanopterus ( Cope, 1872)
- Brycon moorei Steindachner, 1878
- Brycon nattereri Günther, 1864
- Brycon obscurus Hildebrand, 1938
- Brycon oligolepis Regan, 1913
- Brycon Opalinus ( Cuvier, 1819)
- Brycon orbignyanus ( Valenciennes, 1850)
- Brycon orthotaenia Günther, 1864
- Brycon pesu Müller & Troschel, 1845
- Brycon petrosal Meek & Hildebrand, 1913
- Brycon polylepis Mosco Morales, 1988
- Brycon posadae Fowler, 1945
- Brycon rubricauda Steindachner, 1879
- Brycon sinuensis Dahl, 1955
- Brycon stolzmanni Steindachner, 1879
- Brycon striatulus ( Kner, 1863)
- Brycon unicolor Mosco Morales, 1988
- Brycon vermelha Lima & Castro, 2000
- Brycon whitei Myers & Weitzman, 1960
Use
Some species of the genus Brycon as the Matrinxã are the main fish for fish farming and aquaculture in Amazonia. Breeders try the genetic potential of Brycon amazonicus for human consumption auszuschöpfen.Dabei to hormone treatments accelerate the growth of young fish. It is optimized their diet with vitamin C doses and controlled by mass entertainment -related parasitic diseases. Similar studies will be carried out at Brycon Opalinus. In the Nature Park Rio da Prata and Rio Bonito at Jardim in the Brazilian state of Mato Grosso do Sul dives for tourists in the calcareous and clear rivers are offered in which Piraputangas and Matrinxãs in a natural environment can be observed. The strong Matrinxãs and Piraputangas reach weights up to 4.5 kg and lengths up to 70 inches and are therefore popular fishing fish.