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

Brazilian Archives of Biology and Technology

Mateus Evangelista Leal¹  Uwe Horst Schulz¹  Pablo Lehmann Albornoz¹  Rodrigo Machado²  Paulo Henrique Ott² 

[1] ,Universidade do Vale do Rio dos Sinos Laboratório de Ecologia de Peixes/Ictiologia São Leopoldo RS ,Brasil

关键词: Estuarine fishes;    Genidens barbus;    Genidens planifrons;    leucism;   

DOI  :  10.1590/S1516-89132013000200008

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License