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| Medeiros,Carlinda Raílly; Azevêdo,Evaldo de Lira; Barbosa,José Etham de Lucena; Molozzi,Joseline. |
| Abstract For mitigation of environmental problems generated by bad water resource management, the first step is to develop methods for effective diagnosis. The potential bioindicator, mainly in the benthic community, in the evaluation of water quality is the structure of the community, associated with magnitude of environmental impact. The aim of the present study was to evaluate the effectiveness of abundance biomass curves (ABC) as tools to estimate ecological quality in reservoirs in the Brazilian semi-arid region. Two reservoirs, Epitácio Pessoa and Argemiro de Figueiredo were selected. These reservoirs are located in the watershed of the Paraíba River, in Northeast Brazil. Sampling was done at 40 sites in the littoral region of each reservoir, during... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Benthic Macroinvertebrates; Environmental Impact; Biomonitoring; Exotic Species. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200202 |
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| Carbajal-Becerra,Omar; Olvera-Rodríguez,Karla Judith; Souza,Gabriel Mariscal de; Durán-Rodríguez,Omar Yair; Ramírez-García,Arely; Ramírez-Herrejón,Juan Pablo. |
| ABSTRACT Pseudoxiphophorus bimaculatus is an invasive species widely spread throughout freshwater ecosystems in central Mexico, for that reason we described its trophic strategy into a gradient of environmental quality. We sampled individuals of P. bimaculatus at eight sites located in the Lerma-Chapala and Pánuco River Basins during dry season. These basins have been impacted by industrialization and urbanization processes, but are considered as water reserves in México. To evaluate the environmental quality of the river, we applied the Visual-based Habitat Assessment, the Index of Biological Integrity and the Family-level Biotic Index. We assessed the trophic guild, the diet width, the omnivory level, and the diet selectivity. We also explored the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological Invasions; Exotic Species; Feeding Ecology; Freshwater Ecosystems; Poecílidos. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200201 |
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