2009
DOI: 10.1590/s1679-62252009000400025
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Abstract: Concentrations of organic (OrgHg) and inorganic mercury (InorgHg) were assessed in different fish tissues (liver, muscle, kidney, gut and gonads) and trophic levels collected in an impacted tropical reservoir in southeastern Brazil. Organic mercury concentrations in muscle were remarkably higher in the carnivorous species Hoplias malabaricus and Oligosarcus hepsetus. The ratios of OrgHg in relation to total mercury (%OrgHg) in muscle also varied according to the species trophic level: 93% for carnivores, 84% f… Show more

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Cited by 48 publications
(40 citation statements)
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“…Mercury in predatory fish mainly occurs in the form of methyl mercury, which accounts for 80 -90% of total mercury present (Boudou and Ribeyre 1983, Houserova et al 2007, Kasper et al 2009). Many factors influence the concentration and distribution of mercury in the tissues and organs, including trophic level, feeding habits, metabolic rate (Kasper et al 2009, Leaner andMason 2004), and structural and physiological features of each species which may change mercury distribution under similar exposure conditions (Falkowska et al 2010, Kasper et al 2009).…”
Section: Discussionmentioning
confidence: 99%
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“…Mercury in predatory fish mainly occurs in the form of methyl mercury, which accounts for 80 -90% of total mercury present (Boudou and Ribeyre 1983, Houserova et al 2007, Kasper et al 2009). Many factors influence the concentration and distribution of mercury in the tissues and organs, including trophic level, feeding habits, metabolic rate (Kasper et al 2009, Leaner andMason 2004), and structural and physiological features of each species which may change mercury distribution under similar exposure conditions (Falkowska et al 2010, Kasper et al 2009).…”
Section: Discussionmentioning
confidence: 99%
“…Many factors influence the concentration and distribution of mercury in the tissues and organs, including trophic level, feeding habits, metabolic rate (Kasper et al 2009, Leaner andMason 2004), and structural and physiological features of each species which may change mercury distribution under similar exposure conditions (Falkowska et al 2010, Kasper et al 2009). At this point, the influence of biological barriers, such as intestines, skin, and gills, which control the processes of adsorption and absorption of mercury compounds followed by their transport with blood to target organs, should be stressed (Falkowska et al 2010, Mason et al 2000, Wiener et al 2003.…”
Section: Discussionmentioning
confidence: 99%
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“…et al, 1997a;1997b;GUIMARÃES et al, 1999;ZHOU & WONG, 2000;JOYEUX et al, 2004;MALM et al, 2004;PALERMO et al, 2004;BASTOS et al, 2006;SHINN et al, 2009 (CHEN et al, 2005;SILVA et al, 2006;KASPER et al, 2009;YI & ZANG, 2012).…”
Section: Concentração De Metaisunclassified