Trace metal retention in mangrove ecosystems in Guanabara Bay, SE Brazil

2002 ◽  
Vol 44 (11) ◽  
pp. 1277-1280 ◽  
Author(s):  
W Machado ◽  
E.V Silva-Filho ◽  
R.R Oliveira ◽  
L.D Lacerda
Keyword(s):  
Trace Metal ◽  
Guanabara Bay ◽  
Metal Retention ◽  
Mangrove Ecosystems ◽  
Se Brazil

Bulk, isotopic, petrographic organic matter and mineral distribution as proxies of environmental process in Guanabara Bay, SE, Brazil

2021 ◽  
Vol 41 (3) ◽  
Author(s):  
R. C. Cordeiro ◽  
D. D. dos Santos ◽  
R. E. Santelli ◽  
A. G. Figueiredo ◽  
L. S. Moreira ◽  
...  
Keyword(s):  
Organic Matter ◽  
Guanabara Bay ◽  
Mineral Distribution ◽  
Se Brazil ◽  
Environmental Process

Assessment of trace metal contamination and bioavailability in an Environmental Protection Area: Guaxindiba estuarine system (Guanabara Bay, Rio de Janeiro Brazil)

2020 ◽  
Vol 35 ◽  
pp. 101143
Author(s):  
Michele Fernandes ◽  
Estefan Monteiro da Fonseca ◽  
Leonardo da Silva Lima ◽  
Susanna Eleonora Sichel ◽  
Jessica de Freitas Delgado ◽  
...  
Keyword(s):  
Trace Metal ◽  
Environmental Protection ◽  
Metal Contamination ◽  
Rio De Janeiro ◽  
Estuarine System ◽  
Guanabara Bay ◽  
Trace Metal Contamination ◽  
Environmental Protection Area ◽  
Protection Area

scholarly journals Trace metal contamination in mangrove sediments, Guanabara Bay, Rio de Janeiro, Brazil

2007 ◽  
Vol 18 (6) ◽  
pp. 1194-1206 ◽  
Author(s):  
Cassia O. Farias ◽  
Claudia Hamacher ◽  
Angela de Luca R. Wagener ◽  
Reinaldo C. de Campos ◽  
José M. Godoy
Keyword(s):  
Trace Metal ◽  
Metal Contamination ◽  
Rio De Janeiro ◽  
Guanabara Bay ◽  
Mangrove Sediments ◽  
Trace Metal Contamination

scholarly journals Small time scale plankton structure variations at the entrance of a tropical eutrophic bay (Guanabara Bay, Brazil)

2012 ◽  
Vol 60 (4) ◽  
pp. 405-414 ◽  
Author(s):  
Mariana Guenther ◽  
Isabel Lima ◽  
Glenda Mugrabe ◽  
Denise Rivera Tenenbaum ◽  
Eliane Gonzalez-Rodriguez ◽  
...  
Keyword(s):  
Surface Layer ◽  
Photosynthetic Efficiency ◽  
Great Influence ◽  
Small Time ◽  
Guanabara Bay ◽  
Short Term ◽  
Mesozooplankton Biomass ◽  
Trophic Pathways ◽  
Se Brazil ◽  
Almost All

The dynamics of the plankton compartments at the entrance of Guanabara Bay (SE Brazil) were assessed during a short-term temporal survey to estimate their trophic correlations. Size-fractioned phytoplankton (picoplankton: < 2µm, nanoplankton: 2-20µm and microplankton: > 20µm) biomass and photosynthetic efficiency, composition and abundance of the auto-and heterotrophic nano-and microplankton, and mesozooplankton were evaluated at a fixed station for 3 consecutive days at 3-h intervals, in the surface and bottom (20m) layers. The variability of almost all plankton compartments in the surface layer was directly dependent on temperature, indicating the great influence of the circulation at the entrance of the bay on plankton structure. In the surface layer, the mesozooplankton seems to be sustained by both autotrophic nano-and picoplankton, this last being channeled through the microzooplankton. Near the bottom, both auto-and heterotrophic microplankton are probably supporting the mesozooplankton biomass. Our findings thus suggest that the entrance of Guanabara bay presents a multivorous food web, i.e., a combination of both grazing and microbial trophic pathways.

scholarly journals METAL SORPTION BY SEDIMENTS FROM A MANGROVE REFORESTATION AREA IN GUANABARA BAY (SE BRAZIL) REVEALED BY USING RADIOTRACERS

2016 ◽  
Vol 1 (3) ◽  
Author(s):  
Katia Noriko Suzuki ◽  
Melissa Nogueira Sondermann ◽  
Edimar Carvalho Machado ◽  
Wilson Machado ◽  
Alfredo Victor Bernedo Bellido ◽  
...  
Keyword(s):  
Guanabara Bay ◽  
Metal Sorption ◽  
Se Brazil ◽  
Mangrove Reforestation

Eutrophication history of Guanabara Bay (SE Brazil) recorded by phosphorus flux to sediments from a degraded mangrove area

2009 ◽  
Vol 58 (11) ◽  
pp. 1750-1754 ◽  
Author(s):  
A.C. Borges ◽  
C.J. Sanders ◽  
H.L.R. Santos ◽  
D.R. Araripe ◽  
W. Machado ◽  
...  
Keyword(s):  
Guanabara Bay ◽  
Mangrove Area ◽  
Se Brazil ◽  
Phosphorus Flux ◽  
History Of

Pore water trace metal chemistry in polluted sediments of a tropical estuary of SE Brazil

2006 ◽  
Vol 25 (S1) ◽  
pp. 66-67
Author(s):  
Sambasiva Rao Patchineelam ◽  
Edouard Metzger ◽  
Didier Juel ◽  
Gerard Sarazin
Keyword(s):  
Trace Metal ◽  
Pore Water ◽  
Tropical Estuary ◽  
Metal Chemistry ◽  
Polluted Sediments ◽  
Se Brazil

scholarly journals Seepage metal concentrations beneath long-term operated bioretention systems

2021 ◽  
Author(s):  
Arne Reck ◽  
Mogens Thalmann ◽  
Eva Paton ◽  
Björn Kluge
Keyword(s):  
Trace Metal ◽  
Urban Areas ◽  
Field Experiments ◽  
Water Cycle ◽  
Retention Rates ◽  
Trace Metal Concentration ◽  
Retention Performance ◽  
Metal Retention ◽  
Metal Contents

Abstract Bioretention systems maintain the natural water cycle and help to mitigate climatic extremes impact on urban areas by retarding, storing, and evaporating stormwater runoff. Although bioretention systems have been operated for more than 25 years, systematic investigations on the hydrological functionality and pollutant retention performance of older systems are rare. We employed laboratory and field experiments to investigate three long-term operated bioretention systems in Germany with the following objectives: (i) physico-chemical substrate characterisation; (ii) an event-based influent and effluent trace metal concentration monitoring covering 22 months and (iii) the calculation of metal retention rates. Regarding the pollution status, we found significantly increased trace metal contents in the soil substrate mainly as a function of the drainage area type and the inflow regime. Nonetheless, all measured metal seepage concentrations fall below the German legislative trigger values. Our current findings demonstrate no risk of groundwater degradation even for old bioretention systems suggesting bioretention as a powerful and sustainable tool for stormwater management. Further research requires the handling of soil substrates modified by stormwater infiltration showing enhanced trace metal contents and a certain amount of technogenic sediments.

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