Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300003 |
Resumo: | Methylmercury was determined in water and aquatic biota from Guanabara Bay. Trophic transfer of methylmercury was observed between trophic levels from prey (microplankton, mesoplankton and fish with different feeding habits) to top predator (pelagic demersal fish). Top predator fish presented the highest methylmercury concentrations (320.3 ± 150.7 mg kg-1 dry wt.), whereas microplankton presented the lowest (8.9 ± 3.3 mg kg-1 dry wt.). The successive amplification of methylmercury concentrations and its bioconcentration factor with increasing trophic levels from base to top indicate that biomagnification may be occurring along the food web. Results suggest the importance of feeding habits and trophic level in the bioaccumulation of methylmercury by aquatic biota. |
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Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeirobiotransference of methylmercurywater and organismstrophic levelsMethylmercury was determined in water and aquatic biota from Guanabara Bay. Trophic transfer of methylmercury was observed between trophic levels from prey (microplankton, mesoplankton and fish with different feeding habits) to top predator (pelagic demersal fish). Top predator fish presented the highest methylmercury concentrations (320.3 ± 150.7 mg kg-1 dry wt.), whereas microplankton presented the lowest (8.9 ± 3.3 mg kg-1 dry wt.). The successive amplification of methylmercury concentrations and its bioconcentration factor with increasing trophic levels from base to top indicate that biomagnification may be occurring along the food web. Results suggest the importance of feeding habits and trophic level in the bioaccumulation of methylmercury by aquatic biota.Sociedade Brasileira de Química2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300003Química Nova v.34 n.3 2011reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422011000300003info:eu-repo/semantics/openAccessKehrig,Helena A.Malm,OlafPalermo,Elisabete F. A.Seixas,Tércia G.Baêta,Aída P.Moreira,Isabelpor2011-04-12T00:00:00Zoai:scielo:S0100-40422011000300003Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-04-12T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
title |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
spellingShingle |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro Kehrig,Helena A. biotransference of methylmercury water and organisms trophic levels |
title_short |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
title_full |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
title_fullStr |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
title_full_unstemmed |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
title_sort |
Bioconcentração e biomagnificação de metilmercúrio na baía de Guanabara, Rio de Janeiro |
author |
Kehrig,Helena A. |
author_facet |
Kehrig,Helena A. Malm,Olaf Palermo,Elisabete F. A. Seixas,Tércia G. Baêta,Aída P. Moreira,Isabel |
author_role |
author |
author2 |
Malm,Olaf Palermo,Elisabete F. A. Seixas,Tércia G. Baêta,Aída P. Moreira,Isabel |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Kehrig,Helena A. Malm,Olaf Palermo,Elisabete F. A. Seixas,Tércia G. Baêta,Aída P. Moreira,Isabel |
dc.subject.por.fl_str_mv |
biotransference of methylmercury water and organisms trophic levels |
topic |
biotransference of methylmercury water and organisms trophic levels |
description |
Methylmercury was determined in water and aquatic biota from Guanabara Bay. Trophic transfer of methylmercury was observed between trophic levels from prey (microplankton, mesoplankton and fish with different feeding habits) to top predator (pelagic demersal fish). Top predator fish presented the highest methylmercury concentrations (320.3 ± 150.7 mg kg-1 dry wt.), whereas microplankton presented the lowest (8.9 ± 3.3 mg kg-1 dry wt.). The successive amplification of methylmercury concentrations and its bioconcentration factor with increasing trophic levels from base to top indicate that biomagnification may be occurring along the food web. Results suggest the importance of feeding habits and trophic level in the bioaccumulation of methylmercury by aquatic biota. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300003 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422011000300003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.34 n.3 2011 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318111863603200 |