title: Capability of Paraguaçu estuary (Todos os Santos Bay, Brazil) to form oil-SPM aggregates (OSA) and their ecotoxicological effects on pelagic and benthic organisms.
abstract: For experiments concerning the formation of oil-suspended particulate matter (SPM) aggregates (OSA), oil and sediment samples were collected from Campos Basin and six stations of Paraguaçu estuary, Todos os Santos Bay, Brazil, respectively. The sediments samples were analyzed for organic matter determined by the EMBRAPA method, nitrogen determined by the Kjeldahl method, and phosphorus determined by the method described by Aspila. The oil trapped in OSA was extracted following the method described by Moreira. The experiment showed a relationship between the amount of organic matter and OSA formation and consequently the dispersion of the studied oil. On the basis of the buoyancy of OSA and the ecotoxicological effects on pelagic and benthic community, the priority areas for application of remediation techniques are Cachoeira, Maragogipe, and Salinas da Margarida because of the large amount of oil that accumulated at the bottom of the experiment flask (5.85%, 27.95%, and 38,98%; 4.2%, 17.66%, and 32.64%; and 11.82%, 8.07%, and 10.91% respectively).
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil.
authors.forename: Mariana C
authors.initials: MC
authors.lastname: Rios
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil. Electronic address: icarotam@gmail.com.
authors.forename: Ícaro T A
authors.initials: ÍTA
authors.lastname: Moreira
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil; Instituto de Geociências, Departamento de Geofísica Aplicada, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil.
authors.forename: Olívia M C
authors.initials: OMC
authors.lastname: Oliveira
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil.
authors.forename: Taís S
authors.initials: TS
authors.lastname: Pereira
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil.
authors.forename: Marcos
authors.initials: M
authors.lastname: de Almeida
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil.
authors.forename: Maria Clara L F
authors.initials: MCLF
authors.lastname: Trindade
authors.affiliation: Escola de Arquitetura, Engenharia e Tecnologia da Informação, Mestrado em Energia, Universidade Salvador (UNIFACS), Salvador, BA, Brazil.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Menezes
authors.affiliation: Núcleo de Estudos Ambientais, Instituto de Geociências, Universidade Federal da Bahia (UFBA), Campus de Ondina, 40170-290 Salvador, BA, Brazil; Escola de Arquitetura, Engenharia e Tecnologia da Informação, Mestrado em Energia, Universidade Salvador (UNIFACS), Salvador, BA, Brazil.
authors.forename: Alex S
authors.initials: AS
authors.lastname: Caldas
mesh_terms: D059001:Aquatic Organisms / Q000187:drug effects*; D061006:Bays / Q000737:chemistry*; D001938:Brazil; D054750:Ecotoxicology; D004784:Environmental Monitoring / Q000379:methods*; D063366:Estuaries; D019015:Geologic Sediments / Q000737:chemistry; D009584:Nitrogen / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis* / Q000633:toxicity; D010578:Petroleum / Q000032:analysis* / Q000633:toxicity; D010758:Phosphorus / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
chemical_list: D052638:Particulate Matter; D010578:Petroleum; D014874:Water Pollutants, Chemical; D010758:Phosphorus; D009584:Nitrogen
keywords: Ecological effects; Oil spill; Oil–suspended particulate material aggregate (OSA)