Effect of sediment composition on methane concentration and production in the transition zone of a mangrove (Sepetiba Bay, Rio de Janeiro, Brazil)
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منابع مشابه
Effect of sediment composition on methane concentration and production in the transition zone of a mangrove (Sepetiba Bay, Rio de Janeiro, Brazil).
The aim of this research was to evaluate the effect of sediment composition on methane (CH4) dynamics in sediments of different areas in the transition zone between a mangrove and the sea. This research was conducted in a mangrove at Coroa Grande, on the southern coast of Rio de Janeiro. Samples were collected at three stations: (1) region colonised by Rhizophora mangle L. on the edge of the ma...
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(Leaf damage in a mangrove swamp at Sepetiba Bay, Rio de Janeiro, Brazil). Leaf damage to Rhizophora mangle L., Avicennia schaueriana Stapf. & Leechman, and Laguncularia racemosa L. was studied in a two hectare mangrove swamp site in Sepetiba Bay. Seventeen arthropod morphospecies were identifi ed as being responsible for the damage, and their species diversity was highest on A. schaueriana, fo...
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This study focuses on metals analysis in kidney and liver tissues of Egretta thula which were collected prostrate or newly dead in Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil, between March 2005 and October 2008. Kidney and liver were collected and analysed to evaluate heavy metal pollution. High values and widest range were detected for all metals in liver and kidney tissues. G...
متن کاملPalynological analysis of a sediment core obtained in Guanabara Bay, Rio de Janeiro, Brazil.
The sediment of a core collected about 2 km north of Paquetá Island, Guanabara Bay, was submitted to pollen analysis, in order to recognize the dynamics of the regional vegetation, and the anthropic influence. Radiocarbon dating of a sample next to the bottom of the core indicates an age of 4.210+/-40 14C yrs B.P (calibrated age). It was possible to establish four palynological zones. Starting ...
متن کاملTrace Metal Contamination in Mangrove Sediments, Guanabara Bay, Rio de Janeiro, Brazil
A Baía de Guanabara no Rio de Janeiro tem sofrido profundas alterações ambientais. O aumento da concentração de metais-traço em seus sedimentos está entre as alterações mais relevantes. O objetivo deste trabalho foi verificar a contaminação por metais-traço e avaliar a disponibilidade em sedimentos de áreas de manguezais (Surui, Nova Orleans e Piedade). Concentrações de Cd, Zn, Pb, Ni, Cu e Al ...
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ژورنال
عنوان ژورنال: Brazilian Journal of Biology
سال: 2012
ISSN: 1519-6984
DOI: 10.1590/s1519-69842012000300003