First record of partial albinism in two catfish species of Genidens (Siluriformes: Ariidae) in an estuary of Southern Brazil

This study reports the first occurrence of partial albinism in two species of Ariidae: Genidens barbus and Genidens planifrons from an estuary of Southern Brazil. Possible causes of the simultaneous occurrence of three specimens with partial albinism are discussed, including random genetic alteratio...

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Bibliographic Details
Published in:	Brazilian archives of biology and technology Vol. 56; no. 2; pp. 237 - 240
Main Authors:	Leal, Mateus Evangelista, Schulz, Uwe Horst, Albornoz, Pablo Lehmann, Machado, Rodrigo, Ott, Paulo Henrique
Format:	Journal Article
Language:	English
Published:	Instituto de Tecnologia do Paraná (Tecpar) 01-04-2013
Subjects:	Estuarine fishes Genidens barbus Genidens planifrons leucism
Online Access:	Get full text
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Summary:	This study reports the first occurrence of partial albinism in two species of Ariidae: Genidens barbus and Genidens planifrons from an estuary of Southern Brazil. Possible causes of the simultaneous occurrence of three specimens with partial albinism are discussed, including random genetic alterations, chronic contamination effects and small effective population size, which may favor the expression of the recessive albino gene.
ISSN:	1516-8913 1516-8913 1678-4324
DOI:	10.1590/S1516-89132013000200008