Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Tércia G. Seixas"'
Autor:
Helena A. Kehrig, Olaf Malm, Elisabete F. A. Palermo, Tércia G. Seixas, Aída P. Baêta, Isabel Moreira
Publikováno v:
Química Nova, Vol 34, Iss 3, Pp 377-384 (2011)
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
Externí odkaz:
https://doaj.org/article/12949dff11f84a7eacbebc07f9a59bb4
Autor:
Helena A. Kehrig, Kelly W. G. Fernandes, Olaf Malm, Tércia G. Seixas, Ana Paula M. Di Beneditto, Cristina M. M. de Souza
Publikováno v:
Química Nova, Vol 32, Iss 7, Pp 1822-1828 (2009)
Trophic transfer of trace elements along marine food chains has been recognized as an important process influencing metal and metalloid bioaccumulation. The trophic transfer of mercury was observed between trophic levels from prey (considering fish w
Externí odkaz:
https://doaj.org/article/5917e8963b844ced9a86c36c0bf6f357
Publikováno v:
Ecotoxicology
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c0b255d2ed500ab2c68d2a1233e6cb5
https://doi.org/10.1201/b21896-4
https://doi.org/10.1201/b21896-4
Autor:
Tatiana D. Saint’ Pierre, Rafael Christian Chávez Rocha, Isabel Moreira, Tércia G. Seixas, Ricardo Lavandier, Helena A. Kehrig, Rachel Ann Hauser-Davis, Raquel Teixeira Lavradas
Publikováno v:
Ecotoxicology and Environmental Safety. 107:55-60
Metal concentrations (Cu, Pb, Zn and Cd) were determined in muscle, gills, soft tissues and eggs in male, non-ovigerous and ovigerous female Callinectes sp. specimens from a reference site in Southeastern Brazil. Metallothionein (MT) and reduced glut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fca6002e7a7fe00786979cbe7c7952df
https://doi.org/10.1016/j.ecoenv.2014.04.013
https://doi.org/10.1016/j.ecoenv.2014.04.013
Publikováno v:
Ecotoxicology and Environmental Safety. 93:156-162
The growing ingestion of predatory fish by humans has increased their exposure to toxic chemicals. Mercury (Hg) is an exogenous and harmful trace-element that accumulates in all marine organisms. Selenium (Se) is nutritionally important as a micronut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::301d4f5d2f50c22c6dd9dbbe6776847a
https://doi.org/10.1016/j.ecoenv.2013.03.034
https://doi.org/10.1016/j.ecoenv.2013.03.034
Autor:
Rachel Ann Hauser-Davis, Ana Beatriz Pinheiro, Ana Paula Madeira Di Beneditto, Tércia G. Seixas, Helena A. Kehrig
Publikováno v:
Environmental pollution (Barking, Essex : 1987). 213
In the present study, the concentration of trace elements, total mercury (Hg) and selenium (Se) and mercury forms (MeHg, Hginorg and HgSe) in the vulnerable coastal dolphins Pontoporia blainvillei and Sotalia guianensis were appraised and compared, u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5ded04d6d041efbd791edcf05f48f6a
https://pubmed.ncbi.nlm.nih.gov/27038210
https://pubmed.ncbi.nlm.nih.gov/27038210
Publikováno v:
Journal of the Brazilian Chemical Society, Volume: 23, Issue: 7, Pages: 1280-1288, Published: JUL 2012
Journal of the Brazilian Chemical Society v.23 n.7 2012
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society v.23 n.7 2012
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Mercury and selenium were assessed in the muscle tissue of cutlassfish (Trichiurus lepturus) from three coastal areas (Ilha Grande Bay, Guanabara Bay and Búzios coast, Rio de Janeiro State, Brazil) that present different environmental conditions, lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81ca13a5c303cb70f10df83753e57ed5
https://doi.org/10.1590/s0103-50532012000700012
https://doi.org/10.1590/s0103-50532012000700012
Publikováno v:
Bulletin of Environmental Contamination and Toxicology. 89:434-438
Muscular mercury and selenium were assessed in a voracious fish from three Brazilian coastal areas with different environmental conditions. Mercury was higher in specimens from Ilha Grande Bay (0.35 ± 0.17 μg g(-1)) than in cutlassfish from Guanaba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5ed7357036f87e475e08f5a5265ffdd
https://doi.org/10.1007/s00128-012-0680-1
https://doi.org/10.1007/s00128-012-0680-1
Publikováno v:
Marine Pollution Bulletin. 60:2350-2356
Methylmercury (MeHg) and inorganic mercury (Hg(inorg)) were evaluated in the water of a Brazilian estuary, with two size classes of plankton and seven fish species of different feeding habits. Water partition coefficients (PCs) in microplankton were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3109dfb0533525fb799314448d6a3bee
https://doi.org/10.1016/j.marpolbul.2010.08.010
https://doi.org/10.1016/j.marpolbul.2010.08.010
Autor:
Helena A. Kehrig, C. W. C. Branco, Elisabete Fernandes Albuquerque Palermo, Tércia G. Seixas, Isabel Moreira, Olaf Malm
Publikováno v:
Estuarine, Coastal and Shelf Science. 85:36-44
Methylmercury (MeHg) and trace elements (TE), mercury, selenium, cadmium, lead and copper, were determined in a microbial loop composed by three size classes of autotrophic and heterotrophic microorganism samples, 1.2–70 μm (seston, SPM), 70–290
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bdc97589315dd7b911d77bcd1292cf7
https://doi.org/10.1016/j.ecss.2009.05.027
https://doi.org/10.1016/j.ecss.2009.05.027