Copepod community structure after a mining dam disaster in the Southwestern Atlantic Ocean
| Autor: | Laura Rodrigues da Conceição, Alex Cardoso Bastos, Camilo Dias Junior, Fernanda Perassoli, Renato David Ghisolfi, Lilian Elisa Demoner, Georgette Cristina Salvador Lázaro, Luiz Fernando Loureiro Fernandes, Juliano Bicalho Pereira, Kássia do Nascimento Lemos |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Water mass geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences biology 010604 marine biology & hydrobiology Community structure Aquatic Science Oceanography biology.organism_classification 01 natural sciences Tailings Indicator species River mouth Environmental science Dominance (ecology) Bioindicator Copepod 0105 earth and related environmental sciences |
| Zdroj: | Estuarine, Coastal and Shelf Science. 254:107325 |
| ISSN: | 0272-7714 |
| Popis: | This study aimed to investigate the potential effects of iron ore tailings from the Fundao dam (southeastern Brazil) through suspended particulate matter (SPM) on the copepod community in the marine area adjacent to the Doce River mouth (DRM), and to characterize the community related to the oceanographic structure in 2016. Diversity was considered low and very low (min H ' = 0.36; max H' = 2.09) throughout the study period. The results showed a negative correlation between the community and higher concentrations of SPM with Temora turbinata and Centropages velificatus being the indicator species for this scenario. Water masses were the main constituting factor in the community structure where SACW was responsible for the increase in ecological indexes in addition to the dominance of Temora stylifera and Paracalanus quasimodo. The low rates of diversity and abundance recorded point to chronic effects associated with tailings which are enhanced in the absence of SACW. |
| Databáze: | OpenAIRE |
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