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	Provedor de dados Anais da ABC (AABC) (2) Autor Lacerda,Luiz D. (2) Almeida,Marcelo D. (1) Bastos,Wanderley R. (1) Bezerra,Moisés F. (1) Costa,Breno G.B. (1) Lima,Eduardo H.S.M. (1) Mais... Palavra-chave Amazon (1) Contamination (1) Deforestation (1) Hydrochemistry (1) Marine turtles (1) Mercury (1) Metals (1) Monitoring (1) Pollution (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2012 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Mercury in the sea turtle Chelonia mydas (Linnaeus, 1958) from Ceará coast, NE Brazil Anais da ABC (AABC) Bezerra,Moisés F.; Lacerda,Luiz D.; Costa,Breno G.B.; Lima,Eduardo H.S.M.. Mercury concentrations in carapace fragments of the green turtle Chelonia mydas from the Ceará coast in NE Brazil are reported. Concentrations varied from <0.34 to 856.6 ng.g -1 d.w., and were highest (average of 154.8 ng.g -1 d.w.) in juveniles (n = 22), whereas lowest concentrations (average of 2.5 ng.g -1 d.w.) were observed in adult/sub-adult animals (n = 3). There was a significant negative correlation between animal size and Hg concentration probably due to different diets between juveniles and sub-adults/adults. Carapace fragments, which are non-invasive, non-lethal substrates, may be of importance for monitoring purposes of these generally endangered species. Tipo: Info:eu-repo/semantics/article Palavras-chave: Pollution; Metals; Marine turtles; Monitoring. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100012 The impacts of land use changes in the mercury flux in the Madeira River, Western Amazon Anais da ABC (AABC) Lacerda,Luiz D.; Bastos,Wanderley R.; Almeida,Marcelo D.. Changes in hydrochemistry and Hg distribution in the Madeira River from Porto Velho to the confluence with the Amazon River were studied in two cruises in 1997 and 2002. Water conductivity was similar in both periods, but the pH was significantly higher in 2002, in particular along the middle reaches of the river. Total suspended matter concentrations also increased from 1997 to 2002 along the same river portion, which is a result of forest conversion to other land uses, in particular pastures and agriculture accelerated during the interval between the cruises. Dissolved Hg concentrations were similar along the river in both cruises, but particulate Hg concentrations increased significantly along the middle portion of the river, although the suspended... Tipo: Info:eu-repo/semantics/article Palavras-chave: Deforestation; Mercury; Hydrochemistry; Contamination; Amazon. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100007 Registros recuperados: 2 Primeira ... 1 ... Última

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