ASSESSMENT OF WATER QUALITY IN COASTAL WATERS OF FERNANDO DE NORONHA, BRAZIL: BIOMARKER ANALYSES IN AMPHISTEGINA LESSONII

Abstract

Research Article| January 01, 2012 ASSESSMENT OF WATER QUALITY IN COASTAL WATERS OF FERNANDO DE NORONHA, BRAZIL: BIOMARKER ANALYSES IN AMPHISTEGINA LESSONII Martina de Freitas Prazeres; Martina de Freitas Prazeres Instituto de Ciências Biológicas, Universidade Federal do Rio Grande – FURG, Av. Itália km 8, CEP 96201-900, Rio Grande, Rio Grande do Sul, Brazil. Caixa Postal 474 Search for other works by this author on: GSW Google Scholar Samantha Eslava Martins; Samantha Eslava Martins Instituto de Ciências Biológicas, Universidade Federal do Rio Grande – FURG, Av. Itália km 8, CEP 96201-900, Rio Grande, Rio Grande do Sul, Brazil. Caixa Postal 474 Search for other works by this author on: GSW Google Scholar Adalto Bianchini Adalto Bianchini * Instituto de Ciências Biológicas, Universidade Federal do Rio Grande – FURG, Av. Itália km 8, CEP 96201-900, Rio Grande, Rio Grande do Sul, Brazil. Caixa Postal 474 *Correspondence author: E-mail: adaltobianchini@furg.br Search for other works by this author on: GSW Google Scholar Journal of Foraminiferal Research (2012) 42 (1): 56–65. https://doi.org/10.2113/gsjfr.42.1.56 Article history received: 11 Jan 2011 accepted: 08 Aug 2011 first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Martina de Freitas Prazeres, Samantha Eslava Martins, Adalto Bianchini; ASSESSMENT OF WATER QUALITY IN COASTAL WATERS OF FERNANDO DE NORONHA, BRAZIL: BIOMARKER ANALYSES IN AMPHISTEGINA LESSONII. Journal of Foraminiferal Research 2012;; 42 (1): 56–65. doi: https://doi.org/10.2113/gsjfr.42.1.56 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract Symbiont-bearing foraminiferal assemblages from reef environments have proven useful as ecological indicators for water quality. Studies with other organisms have utilized cellular biomarkers to elucidate mechanisms of stress response. Our goal was to combine these approaches, focusing on populations of the symbiont-bearing foraminifer Amphistegina lessonii from Fernando de Noronha Archipelago (northeastern Brazil). Reef-rubble samples containing A. lessonii were collected at five sampling sites on the leeward side of the main island. Three sites were located inside and two outside the Fernando de Noronha National Marine Park (FNNMP) area. Foraminifers were evaluated regarding their density, degree of bleaching, antioxidant capacity against peroxyl radicals (ACAP), lipid peroxidation (LPO), protein carbonylation (PC), and concentrations of metallothionein-like proteins (MTs). Densities of A. lessonii were lower at sites located outside the FNNMP, compared with those inside the FNNMP, where the maximum average was 159±29 individuals/100 cm2. In individuals from sites located outside FNNMP, bleaching frequency reached 25%, though <2%; at FNNMP sites (<1.8%;). ACAP was higher (two-fold) in individuals collected at the FNNMP sites, which showed lower LPO and PC levels. MTs concentration did not differ significantly among sites. Zinc, copper, and lead concentrations were very high at stations located outside FNNMP. Dissolved organic carbon concentration was high at all sampling sites. Redundancy analysis revealed a strong correlation between biomarkers and water quality among sampling sites. These results show that the biomarker approach would be effective in identifying impacted areas and underlying causes, providing a reliable diagnostic for environment health. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.