Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil

Casatti, Lilian, Castro, Ricardo M. C. (2006): Testing the ecomorphological hypothesis in a headwater riffles fish assemblage of the rio São Francisco, southeastern Brazil. Neotropical Ichthyology 4 (2): 203-214, DOI: 10.1590/S1679-62252006000200006, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200006&lng=en&tlng=e