WebIn contrast to aquatic food chains, knowledge of the origins and transfer of mercury (Hg) and methylmercury (MeHg) in terrestrial food chains is relatively limited, especially in songbirds. We collected soil, rice plants, aquatic and terrestrial invertebrates, small wild fish, and resident songbird … WebMetal and Isotope Analysis of Bird Feathers in a Contaminated Estuary Reveals Bioaccumulation, Biomagnification, and Potential Toxic Effects. The Derwent …
The river runs through it: The Athabasca River delivers mercury to ...
Web29 jan. 2014 · Feather stable isotope values and Hg concentrations were measured in four different body feathers from ten white-chinned petrel chicks, ten Antarctic prion adults and seven king penguin adults (Table 1; Fig. 1).Individual SD was very low and ICC very high for feather δ 13 C and δ 15 N values and Hg concentrations of white-chinned petrel chicks … Web42+. Mercury Isotopes are mainly used in the study of the deposition and emission of Hg in both terrestrial and aquatic ecosystems. In one experiment in Canada three different Mercury isotopes (Hg-198, Hg-200 and Hg-202) were used to find out how the route of entry of mercury to an ecosystem affects the amount that becomes accumulated in fish. cadc murfreesboro ar
Relationships Between Carbon Sources, Trophic Level and Mercury …
WebVirtually all biotic, dark abiotic, and photochemical transformations of mercury (Hg) produce Hg isotope fractionation, which can be either mass dependent (MDF) or mass … Web5 feb. 2015 · The aim of this paper was to assess the influence of diet on the concentrations of total mercury (HgTOT) in the eggs of aquatic birds. Trophic level was determined using stable isotopes (δ15N, δ13C). Analysis was carried out on eggs (laid in 2010–2012) belonging to two species of terns nesting at the River Vistula outlet on the Gulf of … Web2 mrt. 2024 · Some water birds have body mercury levels that are much higher than the toxicity threshold in humans. An international team of scientists has come to the ESRF to … cmake 3.10.2 was not found