2010
DOI: 10.1590/s0100-40422010000900018
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Lipídios como indicadores de fontes e distribuição de matéria orgânica particulada em um complexo estuarino-lagunar tropical (Mundaú-Manguaba, AL)

Abstract: , AL). Fatty acids, alcohols and sterols were considered as markers of the source and distribution of particulate organic matter during the dry season in the Mundaú-Manguaba estuarine-lagoon system, NE Brazil. Lipid composition showed an overwhelming influence of autochthonous sources of organic matter in all system´s compartments, including the probable occurrence of algal blooms in specific areas. On the other hand, contamination by sewage was restricted to Mundaú lagoon. This scenario differed from known co… Show more

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Cited by 8 publications
(6 citation statements)
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References 14 publications
(39 reference statements)
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“…The main tributaries of the CELMM are the Mundaú River, which empties into the Mundaú Lagoon, and Paraíba do Meio river, which flows into the Manguaba Lagoon, with annual river discharges of 33.5 m 3 /s and 17.6 m 3 /s, respectively (Costa et al, 2010). The tides are semidiurnal, in a regime between micro and mesotidal, with average amplitude of around 1.45 m. The reduced tidal influence in the inner part of the lagoons results from the cushioning provided by the system of channels (Brito Junior et al, 2018;Cunha et al, 2021).…”
Section: Study Areamentioning
confidence: 99%
“…The main tributaries of the CELMM are the Mundaú River, which empties into the Mundaú Lagoon, and Paraíba do Meio river, which flows into the Manguaba Lagoon, with annual river discharges of 33.5 m 3 /s and 17.6 m 3 /s, respectively (Costa et al, 2010). The tides are semidiurnal, in a regime between micro and mesotidal, with average amplitude of around 1.45 m. The reduced tidal influence in the inner part of the lagoons results from the cushioning provided by the system of channels (Brito Junior et al, 2018;Cunha et al, 2021).…”
Section: Study Areamentioning
confidence: 99%
“…O uso de múltiplos biomarcadores no estudo da geoquímica da matéria orgânica em ambientes aquáticos se justifica devido às diversas características observadas nesses ambientes, particularmente aqueles encontrados na zona de transição continenteoceano. Tais ambientes apresentam uma diversidade de fontes de matéria orgânica, que inclui, além da produção interna, aportes terrestres através dos rios, aportes marinhos e antrópicos e diferenças significativas na reatividade da matéria orgânica em função da sua origem (HEDGES et al, 1997;ONSTAD et al, 2000;COSTA et al, 2010).…”
Section: Os Biomarcadoresunclassified
“…As lagunas Mundaú e Manguaba são rasas, com profundidades médias de 1,7 metros e 2,1 metros, respectivamente (COSTA et al, 2010;OLIVEIRA e KJERFVE, 1993). A laguna Mundaú possui uma área de 27 km² e tem como principal fonte fluvial o rio Mundaú.…”
Section: Introductionunclassified