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Doctoral Thesis
DOI
10.11606/T.21.2010.tde-27072011-111633
Document
Author
Full name
Hiléia dos Santos Barroso
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Bicego, Marcia Caruso (President)
Campos, Lucia de Siqueira
Figueira, Rubens Cesar Lopes
Petti, Monica Angelica Varella
Rothschild, Lilian
Title in Portuguese
Hidrocarbonetos policíclicos aromáticos (HPAs) em organismos marinhos da Baía do Almirantado, Península Antártica
Keywords in Portuguese
Antártica.
aves
Baía do Almirantado
HPAs
invertebrados
Notothenia rossii
pingüins
Abstract in Portuguese
As concentrações de HPAs foram analisadas em invertebrados (Laternula elliptica, Nacella concinna, Yoldia eightsi, Glyptonotus antarcticus, Serolis polita, Euphausia superba, Bovalia gigantea, Sterechinus neumayeri, Odontaster validus e Ophionotus victoriae), peixes (Notothenia rossii), e aves (Pygoscelis Adélia, P. papua, P. antarcticus, Macronectes giganteus, Catharacta sp. e Larus dominicanus) da Baía do Almirantado. As análises de HPAs foram realizadas através de GC/MS. A ocorrência de HPAs nas amostras indicou a biodisponibilidade destes compostos para os organismos da região. As concentrações de HPAs totais para os invertebrados (3,09-174,4 ng g -1 pu) foram maiores que em peixes (0,97-58,9 ng g -1 pu) e menores que em aves (60,1-6861,0 ng g-1 pu), porém apresentaram similaridade entre si. As aves voadoras adultas apresentaram maiores concentrações que os pinguins. Compostos leves e alquilados predominaram em quase todas as amostras, principalmente os alquilnaftalenos. A principal fonte de HPAs para os organismos foi o DFA utilizado na EACF. Espécies predadoras/necrófagas apresentaram HPAs individuais diferentes das espécies suspensívoras/depositívoras. Não ocorreu relação entre o aumento da concentração de HPAs e o aumento do nível trófico dos grupos, e a absorção de HPAs pelas espécies sofreu a influência de fatores como metabolismo, fisiologia, hábito alimentar e teor de lipídio das espécies analisadas.
Title in English
Polyclyclic aromatic hydrocarbons (PAHs) in marine organisms from the Admiralty Bay, Antartic Peninsula
Keywords in English
Admiralty Bay
Antarctica
birds
invertebrates
Notothenia rossii
PAHs
penguins
Abstract in English
The concentrations of PAHs had been analyzed in invertebrates (Laternula elliptica, Nacella concinna, Yoldia eightsi, Glyptonotus antarcticus, Serolis polita, Euphausia superba, Bovalia gigantea, Sterechinus neumayeri, Odontaster validus and Ophionotus victoriae), fish (Notothenia rossii) and birds (Pygoscelis adélia, P. papua, P. antarcticus, Macronectes giganteus, Catharacta sp. and Larus dominicanus) Admiralty Bay. The analyses of HPAs had been carried through GC/MS. The occurrence of PAHs in the samples indicated the bioavailability of these compounds for the organisms of the region. The concentration of total PAHs for the invertebrates (3,09 to 174,4 ng g-1 pu) were higher than fish (0,97 to 58,9 ng g-1 pu) and lower than in birds (60,1- 6861,0 ng g-1 pu) however, they had presented similarity between themselves. The adult flying birds had presented higher concentrations than penguins. Light and alkylated compounds had predominated in almost all samples, mainly the alkylnaphthalenes. The main source of PAHs for the organism was the DFA used in the EACF. Predators/necrophagous species had presented different individual PAHs from the feeder/deposit species. There was no relation between the increase of concentrations of PAHs and the increase of the trophic level of the groups, and the absorption of PAHs for the species had the influence of factors such as metabolism, physiology, alimentary habits and lipid content of the analyzed species.
 
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tese_hileia.pdf (8.97 Mbytes)
Publishing Date
2011-08-04
 
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