Papers by Juan Miguel Artigas Azas
PeerJ, 2021
The subfamily Goodeinae is a group of fishes endemic to the Mexican highlands. Most of the specie... more The subfamily Goodeinae is a group of fishes endemic to the Mexican highlands. Most of the species are restricted to small and isolated streams or springs. Within this subfamily, the genus Characodon is the earliest diverging lineage of which three species have been described: C. lateralis, C. audax, and C. garmani, with the latter, considered extinct. Characodon lateralis and C. audax are classed as endangered, and have been the subject of taxonomic controversy since their description: previous studies have recognized a genetic differentiation in two groups separated by the El Salto waterfall, but morphological analyses contradict these genetic results. We perform a phylogeographic study using the mitochondrial cytb gene and d-loop region to elucidate the evolutionary history of C. lateralis and C. audax. The results with both markers show the presence of two highly differentiated haplogroups; one distributed north and the other distributed south of the waterfall, with genetic dist...
Herichthys minckleyi female guarding her free swimming fry among water lilie leaves in Poza la Be... more Herichthys minckleyi female guarding her free swimming fry among water lilie leaves in Poza la Becerra, Cuatro Cienegas, México. Photo by Juan Miguel Artigas Azas.
El Paso Cactus and Rocks Newsletter, 2018
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Papers by Juan Miguel Artigas Azas