Title
New Ecuadorian records of the eyeless banjo catfish Micromyzon akamai (Siluriformes: Aspredinidae) expand the species range and reveal intraspecific morphological variation
Date Issued
01 April 2021
Access level
metadata only access
Resource Type
journal article
Author(s)
Encalada A.C.
Barragán K.S.
Torres M.L.
Rojas K.E.
Ochoa-Herrera V.
Carvalho T.P.
Publisher(s)
Blackwell Publishing Ltd
Abstract
Two specimens of Micromyzon akamai, an eyeless and miniaturized species previously known only from the deep channels of the eastern Amazon basin in Brazil, are reported from the Curaray River, a tributary of the Napo River in Ecuador. The new specimens are the first records of Micromyzon in the headwaters of the Amazon River and the first records of M. akamai outside Brazil. External morphological characters and a phylogenetic analysis of cytochrome c oxidase I (coI) gene support the identification of the new specimens as M. akamai. Nevertheless, the new specimens also indicate that some features previously hypothesized to be apomorphic for M. akamai are intraspecifically variable.
Start page
1186
End page
1191
Volume
98
Issue
4
Language
English
OCDE Knowledge area
Biología (teórica, matemática, térmica, criobiología, ritmo biológico), Biología evolutiva
Biotecnología relacionada con la salud
Subjects
Scopus EID
2-s2.0-85103994963
PubMed ID
Source
Journal of Fish Biology
ISSN of the container
00221112
Sponsor(s)
This study was funded as part of “Proyecto Descubre Napo,” an initiative of Universidad San Francisco de Quito in association with Wildlife Conservation Society, and funded by the Gordon and Betty Moore Foundation as part of the project: WCS Consolidating Conservation of Critical Landscapes (mosaics) in the Andes. CNPq, Grant/Award Number: 141479/2017‐5 Funding information
We thank M. Sabaj and M. Arce (ANSP), A. Datovo (MZUSP), J. Friel and C. Dillman (CUMV) for sending specimens for comparison or help during visit to collections. We thank J. Wingert for help with photographs of alcohol‐preserved specimens. We thank J. Vieira for help with photographs of specimens. We also thank Andrea Tapia and Segundo Chimbolema for the support in field collection and Claudia Serrano for her support in the laboratory and with permits. This study was developed as part of “Proyecto Descubre Napo,” an initiative of Universidad San Francisco de Quito in association with Wildlife Conservation Society, and funded by the Gordon and Betty Moore Foundation as part of the project: WCS Consolidating Conservation of Critical Landscapes (mosaics) in the Andes. We thank the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for financial support to JC (process #141479/2017‐5). in vivo
Sources of information:
Directorio de Producción Científica
Scopus