Water quality of a coastal lagoon (ES, Brazil): abiotic aspects, cytogenetic damage, and phytoplankton dynamics

• Published in: Environmental science and pollution research international Vol. 24; no. 11; pp. 10855 - 10868
• Main Authors: Duarte, Ian Drumond, Silva, Nayara Heloisa Vieira Fraga, da Costa Souza, Iara, de Oliveira, Larissa Bassani, Rocha, Lívia Dorsch, Morozesk, Mariana, Bonomo, Marina Marques, de Almeida Pereira, Thaís, Dias, Mauro Cesar, de Oliveira Fernandes, Valéria, Matsumoto, Silvia Tamie
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2017; Springer Nature B.V
• Subjects: Allium cepa; Ammonia; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Brazil; Chlorophyceae; Coastal waters; Communities; Cyanophyceae; Cytotoxicity; Damage assessment; Density; Earth and Environmental Science; Ecotoxicology; Environment; Environmental assessment; Environmental Chemistry; Environmental Health; Environmental science; Eutrophication; Genotoxicity; Interdisciplinary studies; Manganese; Metals; Nutrients; Phosphorus; Phytoplankton; Phytoplankton - classification; Plankton; Research Article; Sampling; Seasons; Waste Water Technology; Water analysis; Water Management; Water Pollution Control; Water Quality; Water resources; Water sampling; Brazil; ASW, Brazil; Limnology; Chromosomal aberrations; Metals; Total density; Micronucleus; Diversity
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-017-8721-2

Assessment of water resources requires interdisciplinary studies that include multiple ecosystem aspects. This study evaluated the water quality of Juara Lagoon (ES, Brazil) based on physical and chemical variables, cytogenetic responses in Allium cepa and phytoplankton dynamics. Three sampling sites were defined and water samples were collected during two sampling periods. Analyses such as determination of photic zone, conductivity, and concentrations of nutrients and metals were conducted as well as cytotoxic, mutagenic, and genotoxic potentials using A. cepa test. The main attributes of phytoplankton community, such as total richness, total density, density by class, dominance, and diversity, were also evaluated. Results have revealed that Juara Lagoon has signs of artificial eutrophication at two sampling sites due to high levels of total phosphorus and ammonia nitrogen. Cytotoxic, genotoxic, and mutagenic potentials were detected as well as high concentrations of Fe and Mn. Furthermore, 165 phytoplankton taxa were recorded, with highest richness in Chlorophyceae and Cyanophyceae classes. In addition, Cyanophyceae presented as the highest density class. A. cepa test and phytoplankton community evaluation indicated that the ecological quality of Juara Lagoon is compromised.