Occurrence of Three Sympatric Cytotypes of Hoplias malabaricus (Pisces, Erythrinidae) in the Upper Paraná River Foodplain (Brazil)
2003 年 68 巻 2 号 p. 159-163
詳細
2003 年 68 巻 2 号 p. 159-163
Cytogenetical studies on Hoplias malabaricus, intensive in the last few years, have determined that it does not represent only 1 species, as it is classified, but a complex of species with 7 cytotypes , some of them living in a sympatric condition with no hybrids. In this study, for the first time, 3 cytotypes were found in sympatry and sintopy in the Upper Paraná River floodplain. Cyytotaxonomy and geographical aspects are discussed.
