Potential Effect of Migration Strategy on Pollutant Occurrence in Eggs of Arctic Breeding Barnacle Geese (<i>Branta leucopsis</i>)

Hitchcock, Daniel J.; Andersen, Tom; Varpe, Øystein; Loonen, Maarten J. J. E.; Warner, Nick; Herzke, Dorte; Tombre, Ingunn; Griffin, Larry; Shimmings, Paul; Borgå, Katrine

doi:10.1021/acs.est.9b00014

Cited by 23 publications

(23 citation statements)

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“…However, these studies measured OHCs in plasma, and how comparable these results are to the egg concentrations in the present study is unknown. A recent study from the Baltic Proper found that in eggs of marine birds PCBs and DDTs concentrations were orders of magnitude higher than those of PFASs (De Wit et al, 2020), whereas in eggs of terrestrial arctic barnacle goose ( Branta leucopsis ) mean ∑PFAS equalled ∑PCBs (Hitchcock et al, 2019). Thus it remains difficult to draw firm conclusions about the expected proportional relationship between OCs and PFASs in bird eggs because so few studies have compared these in the same samples and none, to our knowledge, on a long‐term temporal scale.…”

Section: Resultsmentioning

confidence: 99%

“…The deviation of the mean concentrations reported in the earlier study (Bustnes et al, 2007) with the mean of the recent samples was low, 16% ( R 2 = 0.69) and 22.5% ( R 2 = 0.70), for the PCBs and p,p′ ‐dichlorodiphenyldichloroethylene ( p,p′‐ DDE), respectively. The NILU carried out the OC analyses for the period 2010–2019 (see Hitchcock et al, 2019 for details).…”

Section: Methodsmentioning

confidence: 99%

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Temporal Trends of Organochlorine and Perfluorinated Contaminants in a Terrestrial Raptor in Northern Europe Over 34 years (1986–2019)

Bustnes

Bårdsen

Herzke

et al. 2022

Enviro Toxic and Chemistry

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Fourteen legacy organochlorine (OC) contaminants and 12 perfluoroalkyl substances (PFASs) were measured in eggs of tawny owls (Strix alueco) in central Norway (1986Norway ( -2019. We expected OCs to have reached stable equilibrium levels due to bans, and that recent phase-out of some PFASs would have slowed the increase of these compounds. ∑OC comprised on average approximately 92% of the measured compounds, whereas ∑PFAS accounted for approximately 8%. However, whereas the ∑OC to ∑PFAS ratio was approximately 60 in the first 5 years of the study, it was only approximately 11 in the last 5 years. Both OC pesticides and polychlorinated biphenyls (PCBs) showed substantial declines over the study period (~85%-98%): hexachlorocyclohexanes and chlordanes seemed to be levelling off, whereas p,p′-dichlorodiphenyldichloroethylene (p,p′-DDE) and hexachlororbenzene (HCB), and most PCB congeners still seemed to decline at a more or less constant rate. While the concentration of perfluorooctane sulfonic acid (PFOS), the dominating PFAS, was reduced by approximately 43%, other perfluorinated sulfonates (PFSAs) showed only minor changes. Moreover, the median concentrations of seven perfluorinated carboxylic acids (PFCAs) increased approximately five-fold over the study period. Perfluorononanoic acid and perfluoroundecanoate acid, however, seemed to be levelling off in recent years. In contrast, perfluorododecanoic acid, perfluorodecanoate acid, perfluorotridecanoic acid, and perfluorotetradecanoic acid seemed to increase more or less linearily. Finally, perfluorooctanoic acid (PFOA) was increasingly likely to be detected over the study period. Hence, most legacy OCs and PFOS have not reached a lower threshold with stable background levels, and voluntary elimination of perfluoroalkyl carboxylates still has not resulted in declining levels in tawny owls in central Norway.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Temporal Trends of Organochlorine and Perfluorinated Contaminants in a Terrestrial Raptor in Northern Europe Over 34 years (1986–2019)

Bustnes

Bårdsen

Herzke

et al. 2022

Enviro Toxic and Chemistry

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“…Every type of sample was analyzed at least in duplicate to ensure precision of the measurements. The detection limit of the instrument was 0.05 ng [49].…”

Section: Analysis Of Contaminantsmentioning

confidence: 95%

“…Indeed, for many decades, one of the main affluents of Lake Maggiore, River Toce, has received wastewaters from a chemical factory, which produced technical DDT by using a chlor-alkali plant with mercury cells [50,57], located in Pieve Vergonte, about 20 km from Lake Mergozzo. Currently, soils in the River Toce basin, which is bordering on the Lake Mergozzo catchment, are contaminated with DDT and p,p -DDD by atmospheric deposition from the industrial area [49], and their run-off can represent a possible source of contamination for the water bodies in that area together with direct atmospheric transport and deposition. Alternatively, we cannot exclude that some fish species such as roach migrate from Lake Maggiore to Lake Mergozzo, exploiting a connecting stream between the two lakes.…”

Section: Chemicals Concentrations In Biota Of Lake Mergozzomentioning

confidence: 99%

Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy)

Mazzoni

Ferrario

Bettinetti

et al. 2020

Water

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The biomagnification of mercury, polychlorobiphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs) and perfluoroalkyl acids substances (PFASs) was evaluated in the trophic web of Lake Mergozzo, a small and deep Italian subalpine lake, which has been chosen because it is a protected environment, and discharges into the lake are mostly avoided. Carbon source and relative trophic levels were calculated by using 13C and 15N stable isotopes, respectively, and trophic magnification factors (TMFs) were derived. Zooplankton and thirteen species of fish were collected and analyzed, and the results showed the elevated level of biota contamination from both legacy and emerging pollutants, even if direct discharges were avoided. Concentrations in biota, expressed as sums of compounds, ranged from 0.4 to 60 µg kg−1 wet weight (ww) for PFASs, from 16 to 1.3 104 µg kg−1 lipid content (lw) for DDTs, from 17 to 1.5 104 µg kg−1 lw for PCBs and from 20.0 to 501 µg kg−1 ww for mercury (Hg). TMFs of this deep, cold lake, with a prevalent pelagic trophic chain, were high and clearly indicated fish biomagnification, except for PFAS. The biomagnification capability of PFAS in a fish-only food web was discussed by using the biomagnification of Hg as a benchmark for assessing their bioaccumulation potential.

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“…A consideration when using seabird eggs as a contaminant monitoring matrix is the origin of the egg constituents (Hitchcock et al 2019b). Depending on the reproductive life history strategy, females can invest a greater degree of stored energy (capital breeding), or energy recently acquired (income breeding) in reproduction (Stephens et al 2009).…”

Section: Blood and Eggs As Monitoring Matrices Of Legacy And Emergingmentioning

confidence: 99%

Common Eider and Herring Gull as Contaminant Indicators of Different Ecological Niches of an Urban Fjord System

Thorstensen

Ruus

Helberg

et al. 2020

Integr Envir Assess & Manag

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Seabirds like gulls are common indicators in contaminant monitoring. The herring gull (Larus argentatus) is a generalist with a broad range of dietary sources, possibly introducing a weakness in its representativeness of aquatic contamination. To investigate the herring gull as an indicator of contamination in an urban-influenced fjord, the Norwegian Oslofjord, we compared concentrations of a range of lipophilic and protein-associated organohalogen contaminants (OHCs), Hg, and dietary markers in blood (n = 15), and eggs (n = 15) between the herring gull and the strict marine-feeding common eider (Somateria mollissima) in the breeding period of May 2017. Dietary markers showed that the herring gull was less representative of the marine food web than the common eider. We found higher concentrations of lipophilic OHCs (wet weight and lipid weight) and Hg (dry weight) in the blood of common eider (mean ± SE ∑PCB = 210 ± 126 ng/g ww, 60 600 ± 28 300 ng/g lw; mean Hg = 4.94 ± 0.438 ng/g dw) than of the herring gull (mean ± SE ∑PCB = 19.0 ± 15.6 ng/g ww, 1210 ± 1510 ng/g lw; mean Hg = 4.26 ± 0.438 ng/g dw). Eggs gave opposite results; higher wet weight and lipid weight OHC concentrations in the herring gull (mean ± SE ∑PCB = 257 ± 203 ng/g ww, 3240 ± 2610 ng/g lw) than the common eider (mean ± SE ∑PCB = 18.2 ± 20.8 ng/g ww, 101 ± 121 ng/g lw), resulting in higher OHC maternal transfer ratios in gulls than eiders. We suggest that the matrix differences are due to fasting during incubation in the common eider. We suggest that in urban areas, herring gull might not be representative as an indicator of marine contamination but rather urban contaminant exposure. The common eider is a better indicator of marine pollution in the Oslofjord. The results are influenced by the matrix choice, as breeding strategy affects lipid dynamics regarding the transfer of lipids and contaminants to eggs and remobilization of contaminants from lipids to blood during incubation, when blood is drawn from the mother. Our results illustrate the benefit of a multispecies approach for a thorough picture of contaminant status in urban marine ecosystems.

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Potential Effect of Migration Strategy on Pollutant Occurrence in Eggs of Arctic Breeding Barnacle Geese (Branta leucopsis)

Cited by 23 publications

References 60 publications

Temporal Trends of Organochlorine and Perfluorinated Contaminants in a Terrestrial Raptor in Northern Europe Over 34 years (1986–2019)

Temporal Trends of Organochlorine and Perfluorinated Contaminants in a Terrestrial Raptor in Northern Europe Over 34 years (1986–2019)

Trophic Magnification of Legacy (PCB, DDT and Hg) and Emerging Pollutants (PFAS) in the Fish Community of a Small Protected Southern Alpine Lake (Lake Mergozzo, Northern Italy)

Common Eider and Herring Gull as Contaminant Indicators of Different Ecological Niches of an Urban Fjord System

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