The sex ratio showed a predominance of females, representing 65. Chromosomal analysis of astyanax fasciatus pisces, characidae from the araguari river, uberlandia, mg, brazil article pdf available in brazilian journal of biology 661a. Pdf reproductive biology of astyanax fasciatus pisces. Characidae in central and north america, with the description of nine new species article pdf available in journal of natural history 514. Hyphessobrycon also has more than astjanax and which one is larger at any one time depends on whether more species have been recently described in one or the other. To study the reproductive biology of astyanax fasciatus cuvier, 1819 in furnas reservoir, minas gerais, brazil, a total of 7 specimens were captured in bimonthly sampling from august 1993 to july 1994. Some of these fish, like many of their relatives, are kept as aquarium pets and known collectively as tetras. The generic name comes from astyanaxa character in greek mythologywho was the son of hector satyanax troy. Pdf chromosomal analysis of astyanax fasciatus pisces. The main goal of this study was to evaluate effects on brain cholinesterases and erythrocyte micronuclei in astyanax fasciatus exposed to azinphosmethyl in laboratory and field conditions. Preliminary field study of hepatic porphyrin profiles of astyanax fasciatus teleostei, characiformes to define anthropogenic pollution. With around described species and new ones being described yearly, 2 this genus is among the largest of the entire order. Health variables and gill morphology in the tropical fish astyanax fasciatus from a sewagecontaminated river.
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