Browsing by Subject "Baía de Guanabara"
Now showing items 1-6 of 6
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AVALIAÇÃO DOS NÍVEIS DE METAIS E METALOTIONEÍNAS EM POLIQUETAS DE ÁREAS ALTAMENTE IMPACTADAS DA BAÍA DE GUANABARA: POTENCIAL USO PARA BIOMONITORAMENTO
| Posted on: 29 jun. 2010Short-term sediment test using polychaetes has been routinely used to assess marine sediment toxicity. However there are needs to develop long-term assays that measure the effects on sub-lethal endpoints, predicting impacts ... -
Biomarcadores para avaliação de risco ecológico de mercúrio em peixes: Sistema costeiro do Estado do Rio de Janeiro e bioensaios
| Posted on: 25 mar. 2010In aquatic ecosystems, mercury is involved in multiple reactions, among them mutilation seems to be the most important, producing methylmercury, capable to accumulate throughout food web, reaching fish species and other top ... -
Comparação da contaminação por metais no setor interno e externo da Baía de Guanabara utilizando Bunodosoma caissarum e Perna perna como espécies bioindicadoras
| Posted on: 18 fev. 2011Bioindicators are able to indicate the environmental quality of the ecosystems in which they live as well as provide information on the bioavailability of contaminants. Biomonitor organisms can be used to understand the ... -
DISTRIBUIÇÃO DE FÓSFORO EM UM REFLORESTAMENTO DE Rhizophora mangle EM JARDIM GRAMACHO, BAÍA DE GUANABARA RJ
| Posted on: 09 jul. 2010Mangroves are highly productive environments and besides its ecological and economic importance, it has been target of constantly damages such as deforestation and sewage discharges. This study investigated the biogeochemistry ... -
Estimativa dos fluxos de amônia e óxido nitroso na interface ar-mar da Baía de Guanabara, RJ
| Posted on: 16 jul. 2009In the marine environment, the chemistry of nitrogen is controlled by redox reactions, mediated by phytoplankton and bacteria, that produce gases exchanged with the atmosphere due to the desequilibrium between the ... -
Histórico de acumulação de metais traço em sedimentos estuarino dos Rio Iguaçu e da região da área de proteção ambiental de Guapimirim, Baía de Guanabara, RJ.
| Posted on: 25 fev. 2008The aim of the present work is to study the input of trace metals of environmental interest, such as Pb, Zn, Ni, Cu, V, Ba, Co e Cd, in sediments from the Iguaçu River and the Guapimirim Environmental Protection Area ...