Conservation: For almost thirty years of visiting this place, I had always found an abundance of Characodon lateralis, the population has been historically known as “Abraham Gonzalez”, a town 2 km west of Ojo Garabato — which translates as scribble spring, clearly in reference to its intricate shape, and latter “27 de Noviembre”, the town at the side of highway 40. In the 1990s there was a small channel (less than 1 m wide) crossing Abraham Gonzalez which provided water to some inhabitants, the channel was then populated by C. lateralis and subsequently dried up. 27 de Noviembre was still a sure bet to find the species. This was the first time (2023) that vigorous collecting did not produce a single specimen. This time I noticed new exotic species, the crayfish Procambarus clarkii and Carassius auratus.
On the bright side, I was able to collect several Chirostoma mezquital, which had been extremely rare in the past. In talking to Michael Köck (who had previously visited) about this situation, he mentioned that during a visit he made a couple of years ago he wasn’t able to find C. lateralis at this place either, but he did in Ojo Garabato. Therefore, in the best scenario, the population of the species is decreasing.
Mayran - Viesca
Durango
Le profil de la localité Mezquital: Ojo Garabato, située dans l’écorégion Mayran - Viesca, présente ce milieu d’eau douce à partir du contexte géographique et naturaliste réuni par FFM. Il offre une vue d’ensemble accessible de la description générale de la localité, son milieu aquatique et son contexte de conservation. Le texte met l’accent sur la localité en tant que milieu aquatique et sur les grands thèmes qui permettent d’en comprendre le caractère, sans réduire le profil à une liste d’espèces ni divulguer de données sensibles sur le site. En réunissant les sections disponibles dans un récit ciblé, le profil constitue un point de départ utile pour situer la localité dans son bassin hydrographique et son paysage, tout en invitant à découvrir le compte rendu complet..
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