title: Water quality of a coastal lagoon (ES, Brazil): abiotic aspects, cytogenetic damage, and phytoplankton dynamics.
abstract: 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.
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Ian Drumond
authors.initials: ID
authors.lastname: Duarte
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Nayara Heloisa Vieira Fraga
authors.initials: NH
authors.lastname: Silva
authors.affiliation: Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Av. Washington Luiz, Km 235, São Carlos, CEP 13565-905, São Paulo, Brazil.
authors.forename: Iara
authors.initials: I
authors.lastname: da Costa Souza
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Larissa Bassani
authors.initials: LB
authors.lastname: de Oliveira
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Lívia Dorsch
authors.initials: LD
authors.lastname: Rocha
authors.affiliation: Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Av. Washington Luiz, Km 235, São Carlos, CEP 13565-905, São Paulo, Brazil.
authors.forename: Mariana
authors.initials: M
authors.lastname: Morozesk
authors.affiliation: Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (UFSCar), Av. Washington Luiz, Km 235, São Carlos, CEP 13565-905, São Paulo, Brazil.
authors.forename: Marina Marques
authors.initials: MM
authors.lastname: Bonomo
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Thaís
authors.initials: T
authors.lastname: de Almeida Pereira
authors.affiliation: Departamento de Química, Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo (IFES), Avenida Ministro Salgado Filho, n 1000, Vila Velha, CEP 29106-010, Espírito Santo, Brazil.
authors.forename: Mauro Cesar
authors.initials: MC
authors.lastname: Dias
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil.
authors.forename: Valéria
authors.initials: V
authors.lastname: de Oliveira Fernandes
authors.affiliation: Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, n 514, Vitoria, Espirito Santo, CEP 29075-910, Brazil. siltamie@gmail.com.
authors.forename: Silvia Tamie
authors.initials: ST
authors.lastname: Matsumoto
mesh_terms: D001938:Brazil; D005068:Eutrophication; D010839:Phytoplankton / Q000145:classification*; D012621:Seasons; D060753:Water Quality
keywords: Chromosomal aberrations; Diversity; Limnology; Metals; Micronucleus; Total density