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Hyphomycetes from soil of an area affected by copper mining activities in the State of Bahia, Brazil BJM
Costa,Isabella P.M. Wanderley; Cavalcanti,Maria Auxiliadora Q.; Fernandes,Maria José S.; Lima,Débora M.M..
With the aim of observing the impact produced by copper-mining activities on soil fungi, samples were collected from an area at the Caraíba Mining, in the State of Bahia, Brazil. This area was divided in six sub-areas: one had native vegetation and was used as control, while the others varied according to degrees of impact. The samples, collected during the dry and the rainy seasons, were submitted to serial dilutions and placed on Petri dishes with Sabouraud medium plus antibiotic. Sixty five species and 16 genera of Hyphomycetes were identified: Acremonium, Acrophialophora, Aspergillus, Cladosporium, Chrysosporium, Curvularia, Fusarium, Humicola, Malbranchea, Myrothecium, Paecilomyces, Penicillium, Scolecobasidium, Staphylotrichum, Stilbella and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ecology; Impacted area; Mycology; Soil fungi.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300017
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Yearly variation of bacterial production in the Arraial do Cabo protection area (Cabo Frio upwelling region): an evidence of anthropogenic pressure BJM
Coelho-Souza,Sérgio A.; Pereira,Gilberto C.; Coutinho,Ricardo; Guimarães,Jean R.D..
Arraial do Cabo is where upwelling occurs more intensively on the Brazilian coast. Although it is a protection area it suffers anthropogenic pressure such as harbor activities and sporadic sewage emissions. Short-time studies showed a high variability of bacterial production (BP) in this region but none of them evaluated BP during long periods in a large spatial scale including stations under different natural (upwelling and cold fronts) and anthropogenic pressures. During 2006, we sampled surface waters 10 times (5 in upwelling and 5 in subsidence periods) in 8 stations and we measured BP, temperature as well as the concentrations of inorganic nutrients, pigments and particulate organic matter (POM). BP was up to 400 times higher when sewage emissions...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterioplankton; Heterotrophic activity; Impacted area; Extractive reserve; Upwelling system.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400046
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