Autor(es)
Czaja, Alexander; Becerra López, Jorge Luis; Estrada Rodríguez, José Luis; Romero Méndez, Ulises; Cardoza Martínez, Gabriel Fernando; Sáenz Mata, Jorge; Estrada Arellano, Josué Raymundo; Garza Martínez, Miguel Ángel; Hernández Terán, Fernando; Cerano Paredes, Julián
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
The Sabinas River in Coahuila a new hotspot of molluscan biodiversity near Cuatro Ciénegas, Chihuahuan Desert, northern Mexico
Fecha
2022-04-05
Resumen
The malacofauna of the Sabinas River, Don Martin basin, Coahuila, North Mexico, was studied conchologically at nine sites. In total, 23 species of freshwater molluscs, of which 21 are native and two invasive, were found. Nineteen species are gastropods and four species bivalves. One genus and two species of subterranean (interstitial) gastropods are endemic to the area and with Lyogyrus sp. we reported for the first time a member of the family Amnicolidae in Mexico. Mexithauma quadripaludium Taylor, 1966, and Juturnia coahuilae (Taylor, 1966) (Cochliopidae), previously known only as endemics from the neighboring Cuatro Ciénegas basin, were found for the first time living out of this basin. |The malacofauna of the Sabinas River basin, Coahuila, North Mexico, was studied at 9 sites. In total, 21 nativeand 2 invasive species were found. Nineteen species were gastropods and 4 species were bivalves. One genus and2 species of subterranean gastropods are endemic to the area. We report for the first time, a member of the familyAmnicolidae in Mexico, Lyogyrus sp., Mexithauma cf. quadripaludium Taylor, 1966, and Juturnia coahuilae (Taylor,1966) (Cochliopidae), previously known only as endemic in the neighboring Cuatro Ciénegas basin, were found for thefirst time outside of this basin. Also, Cincinnatia integra (Say, 1821) (Hydrobiidae), previously known in Mexico onlyfrom 1 relict site in San Luis Potosí state, was found living in Sabinas River. In all studied sites, the invasive speciesMelanoides tuberculata (O. F. Müller, 1774) (Thiaridae) and Corbicula fluminea (O. F. Müller, 1774) (Cyrenidae)dominate the aquatic molluscan communities. Both molluscs are potential risks for native species, especially if thewater pollution continues. At least 10 species from Sabinas River System are of special conservation significance (7imperiled and 3 vulnerable), due to their endemism, extremely reduced habitat, or relict occurrence in Mexico.
Tema
Sabinas river; freshwater; molluscs; conservation; diversidad ; dulceacuícola; gasterópodos; bivalvos; conservación
Idioma
eng
ISSN
ISSN electrónico: 2007-8706; ISSN impreso: 1870-3453
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