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ASTYANAX AENEUS PDF

Scientific name, Astyanax aeneus. Taxonomy navigation. Up › Astyanax. Down Terminal (leaf) node. Common name, Banded tetra. Synonym, Tetragonopterus. Tetragonopterus aeneus Günther, (synonym) Subspecies Astyanax aeneus costaricensis Meek, accepted as Astyanax fasciatus. Astyanax aeneus is a species of ray-finned fishes with 45 observations.

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Billum; Central tetra Facebook. EigenmannAstyanax paranae C. The blind and colorless cave tetra astyana Mexico is a famous member of the genus, but its taxonomic position is disputed: The Banded Tetras are a benthopelagic schooling species found in all types of freshwater environments from fast flowing rivers and streams to marshes and stagnant astyanwx. Retrieved from ” https: They have not been evaluated from a conservation perspective but should be considered of Least Concern.

Summary page Point data Common names Photos. Phylogenetic diversity index Ref. CastroAstyanax bourgeti C. Editorial de la Universidad de Costa Rica. As a result, we estimated that P excretion by A.

MalabarbaAstyanax daguae C. Banded Tetra, Astyanax aeneusFemale. Due to its prominent black tail blotch, the Banded Tetra is straightforward to identify and cannot be confused with any other species.

Astyanax aeneus Banded tetra Also: Jenyns atyanax, Astyanax schubarti BritskiAstyanax scintillans G. Entered by Torres, Armi G.

Biology and Evolution of the Mexican Cavefish. Sign our Guest Book. Fish caught from Barton Creek, Belize, October Estimates of some properties based on models Phylogenetic diversity index Ref. Reproductive traits and population structure of Astyanax aeneus were analyzed along an environmental gradient of the upper, middle and afneus sections of the asgyanax, where diverse environmental factors were recorded.

Astyanax is a genus of freshwater fish in the family Characidae of the order Characiformes. The Animal Diversity Web online. Population structure by size was analyzed for each study site, based on the astyanaz frequencies by standard length classes. Species Astyanax aeneus Banded tetra. Nutrient recycling by animals is a potentially important biogeochemical process in both terrestrial and aquatic ecosystems.

The lack of comprehensive phylogenetic analyses dealing with this genus is hindering a thorough review and the relationships remain as indeterminate as the monophyly is doubtful.

Hepatosomatic index was negatively correlated with the Gonadosomatic index, evidencing transfer of energy from the liver towards gamete production. Inhabits all types of rivers and streams, from swift water to swamps and stagnant pools Ref.

This pattern allows A. Sides and belly silvery over pearl white merging to a greenish brown back; in preserved specimens, a gray band runs from the humeral mark to the caudal peduncle which has a jet black rhomboidal mark extending to the tip of the middle caudal rays; transparent fins with minimal dark pigment; usually first rays of anal and sometimes dorsal and caudal fins with red or yellow pigment Ref.

Some of these fish, like many of their relatives, are kept as aquarium pets and known collectively as tetras. EigenmannAstyanax depressirostris A. The maximum relative fecundity was recorded at the downstream site and was positively correlated with body weight and standard length.

Sign our Guest Book. Seven size classes were found in the upper and middle sections, and nine downstream, with seasonal and spatial pattern in size-class frequency distribution. Miranda-RibeiroAstyanax gracilior Zeneus.

Short description Morphology Morphometrics Differs from A. The length-weight relationship was determined, and the identification of gonadal developmental stages, reproductive period, size at first sexual maturity, relative fecundity, sex ratio and somatic indexes gonadosomatic, hepatosomatic and Fulton’s condition factor were also assessed.

This page was last edited on 15 Mayat They have transparent fins with minimal dark red pigments on the first rays of their anal and dorsal fins. The Banded Tetras are very abundant in many locations.

Human uses

Add your observation in Fish Watcher Native range All suitable habitat This map was computer-generated and has not yet been reviewed. To cite this page: Stoichiometric traits of individual species astyamax result in some taxa playing disproportionately important roles in the recycling of nutrients relative to their biomass, acting as keystone nutrient recyclers.

EigenmannAstyanax taeniatus L. The generic name comes from Astyanaxa character in Greek mythologywho was the son of Hector of Troy ; in homage to this, several specific epithets also refer to the Iliad.

AhlAstyanax procerus C.

Astyanax (fish) – Wikipedia

Not available FishBase mirror site: Native range All suitable habitat. Human uses FAO Publication: The key to identification is the presence of a black rhomboidal blotch on their caudal peduncle that extends to the center of their caudal fin.

Feeds on algae, seeds, leaves, aquatic and terrestrial insects and fish fry of any species Ref. They are also an important contributor to their aquatic ecosystems as they excrete disproportionately large amounts of phosphorous, with levels ten-fold higher than other species in the same environment. EigenmannAstyanax goyacensis C. Entered by Torres, Armi G.