Mena-Valenzuela, P., & Valdiviezo-Rivera, J. (2016). Leucismo en Astroblepus ubidiai (Pellegrin 1931; Astroblepidae: Siluriformes), de la provincia de Imbabura, Ecuador. Revista Biota colombiana, 017(1), 131-135. DOI 10.21068/c001
http://repositoriodigital.com/handle/20.500.11761/9476
PDF: http://repository.humboldt.org.co/bitst ... 202016.pdf
Mena-Valenzuela & Valdiviezo-Rivera wrote:ABSTRACT
Leucism is an aberration in pigmentation, resulting from a genetic abnormality and occurs in all vertebrate groups in which the fish are included. In Ecuador, it has not reported such anomalies in fish. Is presented for the first time a case of partial leucism in an individual of Andean Catfish (Astroblepidae), observed in a spring located near the Lake San Pablo Canton Otavalo, Imbabura Province, Ecuador.
Figure 2. Leucystic individual of Astroblepus ubidiai, registered in the spring "Proaño" located near the lake San Pablo of the province of Imbabura.Mena-Valenzuela & Valdiviezo-Rivera wrote:ABSTRACT
El leucismo es una aberración en la pigmentación, producto de una anomalía genética y se presenta en todos los grupos de vertebrados incluyendo los peces. En Ecuador, no se ha reportado este tipo de anomalía en peces. Se presenta por primera vez un caso de leucismo parcial, en un individuo de (Astroblepidae), observado en un manantial ubicado cerca del lago San Pablo del cantón Otavalo, cuenca del río Mira, provincia de Imbabura, Ecuador.
Figure 3. Coloring of other adult specimens of the species. Note the color variation of the individuals of this metapopulation. These photographs were taken into the water at the spring.