Changes in diversity and distribution of native fish due to the presence of two invasive species in the Atacames River, northwestern Ecuador
Jimenez-Prado, P ; Vasquez, F
Resumen: The interpretation of biological diversity can be very complex, as it exists a dynamic based on the origin and diversification of species, in addition to anthropogenic effects, such as the introduction of invasive species, which can result in the local extinction of the native ones. The aim of this study was to analyze the temporal variation (2012 and 2017), in composition and distribution of the ichthyofauna along the Atacames River in northwestern Ecuador. In 2012 we recorded: 1) the presence of Astyanax ruberrimus, which was reported locally extinct by 2017; and 2) the tilapia (Orechromis niloticus) as the only introduced fish species present until 2017, when the addition of the non-native guppy (Poecilia gillii) occurred. In addition, the increase in human activities conduced to change in diversity, abundance and distribution of fish along the watercourse, which resulted in dispersing of some species towards the upper reaches of the river basin.
Idioma: Español
DOI: 10.15446/abc.v26n1.81888
Año: 2021
Publicado en: Acta Biologica Colombiana 26, 1 (2021), 81-88
ISSN: 0120-548X
Factor impacto JCR: 0.676 (2021)
Categ. JCR: ZOOLOGY rank: 159 / 177 = 0.898 (2021) - Q4 - T3
Categ. JCR: PLANT SCIENCES rank: 216 / 240 = 0.9 (2021) - Q4 - T3
Factor impacto CITESCORE: 1.1 - Agricultural and Biological Sciences (Q3)
Factor impacto SCIMAGO: 0.214 - Agricultural and Biological Sciences (miscellaneous) (Q3)
Tipo y forma: Article (Published version)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
Exportado de SIDERAL (2023-05-18-15:33:27)
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Idioma: Español
DOI: 10.15446/abc.v26n1.81888
Año: 2021
Publicado en: Acta Biologica Colombiana 26, 1 (2021), 81-88
ISSN: 0120-548X
Factor impacto JCR: 0.676 (2021)
Categ. JCR: ZOOLOGY rank: 159 / 177 = 0.898 (2021) - Q4 - T3
Categ. JCR: PLANT SCIENCES rank: 216 / 240 = 0.9 (2021) - Q4 - T3
Factor impacto CITESCORE: 1.1 - Agricultural and Biological Sciences (Q3)
Factor impacto SCIMAGO: 0.214 - Agricultural and Biological Sciences (miscellaneous) (Q3)
Tipo y forma: Article (Published version)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. Exportado de SIDERAL (2023-05-18-15:33:27)
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Record created 2022-09-21, last modified 2023-05-19