Resumen (es):
Las invasiones biológicas y las modificaciones de hábitat son importantes motores de pérdida de biodiversidad. El represamiento de ríos, en particular, provoca perturbaciones a nivel hidrológico, limnológico y de hábitat, y facilita la introducción, establecimiento y propagación de especies exóticas. En Brasil, la mayoría de las especies exóticas de moluscos de agua dulce se han observado en embalses. Este estudio documenta la primera ocurrencia del gasterópodo dulceacuícola exótico Physella acuta (Physidae) en Sergipe, Brasil. En febrero de 2019, se observaron individuos de P. acuta a lo largo del margen del embalse de Xingó. Los individuos fueron fotografiados in situ y recogidos para su identificación en el laboratorio. Los resultados confirman la primera ocurrencia de P. acuta en Sergipe, ampliando su rango conocido en Brasil y actualizando la lista de especies invasoras tanto en Sergipe como en el bajo Río São Francisco.
Resumen (en):
Biological invasion and habitat modification are major drivers of biodiversity loss. River damming, in particular, leads to hydrological, limnological, and habitat disruptions, and facilitates the introduction, establishment and spread of alien species. In Brazil, most alien freshwater mollusk species have been observed in reservoirs. This study documents the first occurrence of the highly widespread exotic freshwater gastropod Physella acuta (Physidae) in Sergipe, Brazil. In February 2019, individuals of P. acuta were observed along the margin of the Xingó reservoir. The individuals were photographed in situ and collected for identification in the laboratory. Results confirm the first occurrence of P. acuta in Sergipe, expanding its known range in Brazil and updating the list of the invasive species in both Sergipe and the Lower São Francisco River.
Palabras clave:
aquatic macroinvertebrates, invasive species, habitat, Mollusca, Physidae, distribution (en)
macroinvertebrados acuáticos, especies invasoras, hábitat, moluscos, Physidae, distribución (es)
macroinvertebrados acuáticos, especies invasoras, hábitat, moluscos, Physidae, distribución (es)
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Cómo citar
Régis-Silva, C. C., Rosa, L. C. da, & Dornellas, A. P. S. (2025). El gasterópodo dulceacuícola más cosmopolita invade el Bajo Río São Francisco: primer registro de Physella acuta en Sergipe. Biota Colombiana, 26, e1249. https://doi.org/10.21068/2539200X.1249
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-SinDerivadas 4.0.
Derechos de autor 2025 Instituto de Investigación de Recursos Biológicos Alexander Von Humboldt
