| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000435987 |
| ISSN: | 0001-3765 |
| Authors: | Collado, Gonzalo A1 Vidal, Marcela A1 Torres Díaz, Cristian1 Cabrera, Francisco J2 Araya, Juan F3 Darrigran, Gustavo4 |
| Institutions: | 1Universidad del Bío-Bío, Facultad de Ciencias, Chillán, Ñuble. Chile 2Universidad Tecnológica de Chile, Chillán, Ñuble. Chile 3Universidad de Atacama, Centro de Investigaciones Costeras, Copiapó. Chile 4Universidad Nacional de La Plata, Facultad de Ciencias Naturales y Museo, La Plata, Buenos Aires. Argentina |
| Year: | 2020 |
| Volumen: | 92 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The sewage snail Physa acuta, native to North America, is an effective invasive species around the world. In Chile, it was first reported in 2014 in the north central area of the country. So far, the species has not been recorded in southern Chile. Sampling performed in 2015 in three localities from Llanquihue Lake, Chilean Patagonia, only provided native freshwater snails. However, new collections performed in February 2018 in the same three sites were successful for physid specimens suggesting a biological invasion entailing a large southward range expansion of these snails. Here we performed morphological, microstructural and phylogenetic analyses to investigate whether the new samples belong to Physa acuta. The shell morphology, male copulatory complex and radula microstructure of the new material agree with those of the sewage snail. The molecular phylogenetic analyses using the cytochrome c oxidase subunit 1 (COI) gene confirmed morphological identification. We suggest to take prompt measures to prevent the expansion of Physa acuta in Llanquihue Lake or nearby aquatic ecosystems |
| Disciplines: | Biología |
| Keyword: | Moluscos, Taxonomía y sistemática, Especies invasoras, Caracoles de agua dulce, Identificación molecular, Physa acuta, Gastropoda, Chile |
| Keyword: | Molluscs, Taxonomy and systematics, Invasive species, Freshwater snails, Molecular identification, Physa acuta, Gastropoda, Chile |
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