Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters
Abstract Brazilian Amazonia encompasses a number of major complexes of conservation areas, some of which contain important deposits of mineral resources, and thus represent strategic areas for the exploitation of ores. The present study investigated the composition of the local communities of freshw...
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Nature Portfolio
2025-07-01
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| author | Katherine Soares Morais Claudia Antônia Campos Rodrigues de Oliveira Alexandre de Oliveira Marques Fúlvio Aurélio de Morais Freire Lílian Lund Amado Maria Clara Pinheiro de Souza Leandro Machado de Carvalho Gustavo Quevedo Romero Bianca Bentes |
| author_facet | Katherine Soares Morais Claudia Antônia Campos Rodrigues de Oliveira Alexandre de Oliveira Marques Fúlvio Aurélio de Morais Freire Lílian Lund Amado Maria Clara Pinheiro de Souza Leandro Machado de Carvalho Gustavo Quevedo Romero Bianca Bentes |
| author_sort | Katherine Soares Morais |
| collection | DOAJ |
| description | Abstract Brazilian Amazonia encompasses a number of major complexes of conservation areas, some of which contain important deposits of mineral resources, and thus represent strategic areas for the exploitation of ores. The present study investigated the composition of the local communities of freshwater decapod crustaceans and their variation in relation to environmental parameters of the Carajás Mosaic. The data were collected during the rainy and dry seasons of 2022 at four points (two impacted, two controls) in each of the two hydrographic basins—of the Itacaiúnas and Parauapebas rivers—that make up the area of the Carajás Mosaic. The relationship between the crustacean communities and environmental variables was analyzed using multiple linear regressions, which considered crustacean species richness and abundance as the dependent variables, in relation to the threshold of contamination of the sediment by metals (Al, As, Fe, Pb, and Mn), and the temperature of the water. A total of ten crustacean species were identified, representing the families Trichodactylidae, Palaemonidae and Pseudothelphusidae. High mean temperatures were associated with a reduction in both alpha and beta diversity, which indicates negative impacts on the health of the aquatic communities. Overall, the impacted areas had significantly reduced crustacean diversity and abundance in comparison with the control areas. |
| format | Article |
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| language | English |
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| spelling | doaj-art-b22d77ec12964b1da647e8bb547cec892025-08-20T03:03:24ZengNature PortfolioScientific Reports2045-23222025-07-0115111410.1038/s41598-025-08951-xComposition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parametersKatherine Soares Morais0Claudia Antônia Campos Rodrigues de Oliveira1Alexandre de Oliveira Marques2Fúlvio Aurélio de Morais Freire3Lílian Lund Amado4Maria Clara Pinheiro de Souza5Leandro Machado de Carvalho6Gustavo Quevedo Romero7Bianca Bentes8Amazon Aquatic Ecology and Fisheries Institute, Federal University of Pará (UFPA)Amazon Aquatic Ecology and Fisheries Institute, Federal University of Pará (UFPA)Federal Institute od education, Science and Technology of Rio Grande do NorteCrustacean Ecology and Evolution Laboratory (LABEEC), Department of Botany and Zoology, Biosciences Center, Federal University of Rio Grande do NorteMarine Environmental Monitoring Research Laboratory and Ecotoxicology Laboratory, Institute of Biological Sciences, Federal University of Pará (UFPA)Amazon Aquatic Ecology and Fisheries Institute, Federal University of Pará (UFPA)Chemical Analysis Laboratory, Federal University of Santa MariaLaboratory of Multitrophic Interactions and Biodiversity, Department of Animal Biology, Institute of Biology, State University of Campinas (UNICAMP)Amazon Aquatic Ecology and Fisheries Institute, Federal University of Pará (UFPA)Abstract Brazilian Amazonia encompasses a number of major complexes of conservation areas, some of which contain important deposits of mineral resources, and thus represent strategic areas for the exploitation of ores. The present study investigated the composition of the local communities of freshwater decapod crustaceans and their variation in relation to environmental parameters of the Carajás Mosaic. The data were collected during the rainy and dry seasons of 2022 at four points (two impacted, two controls) in each of the two hydrographic basins—of the Itacaiúnas and Parauapebas rivers—that make up the area of the Carajás Mosaic. The relationship between the crustacean communities and environmental variables was analyzed using multiple linear regressions, which considered crustacean species richness and abundance as the dependent variables, in relation to the threshold of contamination of the sediment by metals (Al, As, Fe, Pb, and Mn), and the temperature of the water. A total of ten crustacean species were identified, representing the families Trichodactylidae, Palaemonidae and Pseudothelphusidae. High mean temperatures were associated with a reduction in both alpha and beta diversity, which indicates negative impacts on the health of the aquatic communities. Overall, the impacted areas had significantly reduced crustacean diversity and abundance in comparison with the control areas.https://doi.org/10.1038/s41598-025-08951-xCrustaceans in CarajásPredictive modelsInvertebrate community structureCrustaceans in mining areas |
| spellingShingle | Katherine Soares Morais Claudia Antônia Campos Rodrigues de Oliveira Alexandre de Oliveira Marques Fúlvio Aurélio de Morais Freire Lílian Lund Amado Maria Clara Pinheiro de Souza Leandro Machado de Carvalho Gustavo Quevedo Romero Bianca Bentes Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters Scientific Reports Crustaceans in Carajás Predictive models Invertebrate community structure Crustaceans in mining areas |
| title | Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters |
| title_full | Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters |
| title_fullStr | Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters |
| title_full_unstemmed | Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters |
| title_short | Composition of the freshwater decapod crustacean communities in an area of mining in Brazilian Amazonia and the variation related to environmental parameters |
| title_sort | composition of the freshwater decapod crustacean communities in an area of mining in brazilian amazonia and the variation related to environmental parameters |
| topic | Crustaceans in Carajás Predictive models Invertebrate community structure Crustaceans in mining areas |
| url | https://doi.org/10.1038/s41598-025-08951-x |
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