Results 31 to 40 of about 473,483 (200)
Geoarchaeology, Volume 36, Issue 6, Page 875-896, November/December 2021., 2021 Abstract Elevated concentrations of total mercury (THg) are found in the surface soils and flanking wetland sediments at the Classic Maya coastal site of Marco Gonzalez, Belize. Significant concentrations (up to 1.3 µg·g−1 dry mass) of THg occur in leaf litter‐rich soils, as well as in the artefact‐rich anthrosol spread over the vegetated mound site of
Simon Turner +7 more
wiley +1 more source
Sex and age differential allometrics and growth in Sphaeroma serratum (Crustacea, Isopoda) from Guanabara Bay (Brazil) [PDF]
, 2007 Alometria e crescimento sexual e etàriamente diferenciados em Sphaeroma serratum (Crustaceae, Isopoda) da baía da Guanabara (Brasil) JARBAS DE MESQUITA NETOSex and age differential allometrics and growth in Sphaeroma serratum ...
Mesquita Neto, J. de
core +1 more source
Notes on feeding of Chaetognatha in Guanabara Bay, Brazil [PDF]
Journal of Plankton Research, 1997 A preliminary analysis, by means of the gut content, of the diet of Sagitta friderid and Sagitta enflata occurring in Guanabara Bay was carried out. The samples were collected at different times over a 4 day period in September 1995, during vertical tows with a conical net of 200 um mesh size at a fixed station (30 m depth).
A. Marazzo +2 more
openaire +1 more source
Brazilian Journal of Geophysics, 1996 A comparação entre dados granulométricos e registros de sísmica da Enseada de Jurujuba, Baía de Guanabara (Estado do Rio de Janeiro) revelou uma série de informações sobre os processos sedimentares ocorrentes na área.
J. A. Batista Neto +2 more
doaj +1 more source
Geochimica Brasiliensis, 2018 Located in the center of the metropolitan region of Rio de Janeiro, and surrounded by one of the most developed regions of Brazil, Guanabara bay is one of the most degraded estuarine environments in the country, with a chronic contamination state by ...
Iná Barros +5 more
doaj +1 more source
Anais da Academia Brasileira de Ciências, 2001 Geochemical and clay mineralogical studies of bottom sediments collected along the Macacu and Caceribu rivers and Guanabara Bay were carried out in order to investigate the relationship between major source areas and recent sediments of the bay.
MARCIA DE MELO FARIA, BRAZ A. SANCHEZ
doaj +1 more source
Impact of the Icaraí Sewage Outfall in Guanabara Bay, Brazil [PDF]
Brazilian Archives of Biology and Technology, 2006 The present study aimed to evaluate the water quality of the Icaraí Sewage Outfall (ISEO) area. Sampling was conducted during winter and summer, and water samples were analyzed for dissolved oxygen, pH, temperature, salinity, dissolved inorganic nutrients (DIN), seston, particulate organic matter (POM), and pigments.
Marques Júnior, Aguinaldo Nepomuceno +2 more
openaire +4 more sources
Ecological risk evaluation of sediment metals in a tropical Euthrophic Bay, Guanabara Bay, Southeast Atlantic [PDF]
Marine Pollution Bulletin, 2016 Surface sediments were collected from Guanabara Bay, at 14 stations distributed in five sectors, over three sampling campaigns. Analyses of metals, grain size fractions and total organic carbon analyses were performed. The geo-accumulation index and the enrichment factor were estimated to assess contamination status based on background values ...
Abreu, Ilene Matano +5 more
openaire +3 more sources
GUANABARA BAY: ENVIRONMENTAL EDUCATION THROUGH AN INTERDISCIPLINARY THEMATIC [PDF]
Periódico Tchê Química, 2010 This paper shows an interdisciplinary project that involved two scholar subjects: Chemistry and Regional Studies (subject of business administration course of Fundação Osório). The Guanabara Bay was the scene for observations and discussions about the origins, causes and possible solutions in terms of time scale for the environmental question.
De Souza, Paulo Sérgio Alves +1 more
openaire +1 more source
Multibiomarker Approach in Fish to Assess a Heavily Polluted Brazilian Estuary, Guanabara Bay
Environmental Monitoring and Assessment, 2022 Abstract Brazil’s Guanabara Bay (GB), located in Rio De Janeiro, is a deeply contaminated, eutrophic waterbody that has a reduced environment that challenges the understanding of the effects of pollutants on the biota. This paper presents an integrated strategy to evaluate the impact of contamination, utilizing a multibiomarker approach in the ...
Marina Moreira, Freire +3 more
openaire +2 more sources