title: Matching metal pollution with bioavailability, bioaccumulation and biomarkers response in fish (Centropomus parallelus) resident in neotropical estuaries.
abstract: Two neotropical estuaries affected by different anthropogenic factors were studied. We report levels of metals and metalloids in water and sediment as well as their influence on genetic, biochemical and morphological biomarkers in the native fish Centropomus parallelus. Biomarkers reflected the fish health status. Multivariate statistics indicated both spatial and temporal changes in both water and sediment, which are linked to the elemental composition and health status of inhabitant fish, showing the biggest influence of surface water, followed by sediments and interstitial water. Bioaccumulation in fish muscle was useful to identify elements that were below detection limits in water, pointing out the risk of consuming fish exceeding allowance limits for some elements (As and Hg in this case). Multivariate statistics, including physical, chemical and biological issues, presents a suitable tool, integrating data from different origin allocated in the same estuary, which could be useful for future studies on estuarine systems.
authors.affiliation: Universidade Federal de São Carlos, Dept. Ciências Fisiológicas, Rodovia Washington Luiz, km 235, 13565-905 São Carlos, São Paulo, Brazil.
authors.forename: Iara C
authors.initials: IC
authors.lastname: Souza
authors.forename: Ian D
authors.initials: ID
authors.lastname: Duarte
authors.forename: Natieli Q
authors.initials: NQ
authors.lastname: Pimentel
authors.forename: Lívia D
authors.initials: LD
authors.lastname: Rocha
authors.forename: Mariana
authors.initials: M
authors.lastname: Morozesk
authors.forename: Marina M
authors.initials: MM
authors.lastname: Bonomo
authors.forename: Vinicius C
authors.initials: VC
authors.lastname: Azevedo
authors.forename: Camilo D S
authors.initials: CD
authors.lastname: Pereira
authors.forename: Magdalena V
authors.initials: MV
authors.lastname: Monferrán
authors.forename: Camilla R D
authors.initials: CR
authors.lastname: Milanez
authors.forename: Silvia T
authors.initials: ST
authors.lastname: Matsumoto
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Wunderlin
authors.forename: Marisa N
authors.initials: MN
authors.lastname: Fernandes
mesh_terms: D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D002980:Climate; D004784:Environmental Monitoring; D063366:Estuaries; D008670:Metals / Q000032:analysis / Q000633:toxicity*; D010473:Perciformes / Q000502:physiology*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D015415:Biomarkers; D008670:Metals; D014874:Water Pollutants, Chemical
keywords: Biomarkers; Chemometrics; Estuarine pollution; Fat snook; Water quality