Rigét, Frank F; Möller, P; Dietz, Rune; Nielsen, Torkel Gissel; Asmund, Gert; Strand, Jakob; Larsen, Martin M; Hobson, Keith A (2007): (Table 1) Mercury concentrations and carbon and nitrogen isotopic ratios in 14 marine species from West Greenland sampled between 2003-2004 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.819064, Supplement to: Rigét, FF et al. (2007): Transfer of mercury in the marine food web of West Greenland. Journal of Environmental Monitoring, 9(8), 877-883, https://doi.org/10.1039/b704796g
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Abstract:
Total mercury (THg), methylmercury (MeHg) and stable isotopes of nitrogen (d15N) and carbon (d13C) were measured in three invertebrate, five fish, three seabird and three marine mammal species of central West Greenland to investigate trophic transfer of mercury in this Arctic marine food web. The food web magnification factor (FWMF) estimated as the slope of the regression between the natural logarithm of THg or MeHg concentrations (mg/kg dw) and tissue d15N (per mil) was estimated to 0.183 (SE = 0.052) for THg and 0.339 (SE = 0.075) for MeHg. The FWMFs were not only comparable with those reported for other Arctic marine food webs but also with quite different food webs such as freshwater lakes in the sub-Arctic, East Africa and Papua New Guinea. This suggests similar mechanisms of mercury assimilation and isotopic (d15N) discrimination among a broad range of aquatic taxa and underlines the possibility of broad ecosystem comparisons using the combined contaminant and stable isotope approach.
Project(s):
Coverage:
Median Latitude: 70.500000 * Median Longitude: -56.250000 * South-bound Latitude: 67.000000 * West-bound Longitude: -57.500000 * North-bound Latitude: 74.000000 * East-bound Longitude: -55.000000
Date/Time Start: 2003-04-01T00:00:00 * Date/Time End: 2004-01-01T00:00:00
Event(s):
Comment:
Mercury concentrations are given per kg dry weight. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Group | Group | Rigét, Frank F | |||
| 2 | Species, common name | Species common | Rigét, Frank F | |||
| 3 | Species | Species | Rigét, Frank F | |||
| 4 | Sample type | Samp type | Rigét, Frank F | tissue | ||
| 5 | DATE/TIME | Date/Time | Geocode | |||
| 6 | Date/time end | Date/time end | Rigét, Frank F | |||
| 7 | Length, minimal | l min | mm | Rigét, Frank F | total length, # = carapace length | |
| 8 | Length, maximal | l max | mm | Rigét, Frank F | total length, # = carapace length | |
| 9 | Mass, minimum | Mass min | g | Rigét, Frank F | # = soft tissue | |
| 10 | Mass, maximal | Mass max | g | Rigét, Frank F | # = soft tissue | |
| 11 | Sample amount | N | # | Rigét, Frank F | ||
| 12 | Comment | Comment | Rigét, Frank F | |||
| 13 | Method comment | Method comm | Rigét, Frank F | A = means of THg, MeHg and stable isotopes from different individuals; B = means of THg, MeHg and stable isotopes from the same individuals | ||
| 14 | Mercury | Hg | mg/kg | Rigét, Frank F | total | |
| 15 | Mercury, standard deviation | Hg std dev | ± | Rigét, Frank F | THg | |
| 16 | Methylmercury | MeHg | mg/kg | Rigét, Frank F | ||
| 17 | Methylmercury, standard deviation | MeHg std dev | ± | Rigét, Frank F | ||
| 18 | Percentage | Perc | % | Rigét, Frank F | MeHg/THg | |
| 19 | Standard deviation | Std dev | ± | Rigét, Frank F | MeHg/THg | |
| 20 | δ15N | δ15N | ‰ air | Rigét, Frank F | ||
| 21 | δ15N, standard deviation | δ15N std dev | ± | Rigét, Frank F | ||
| 22 | δ13C | δ13C | ‰ PDB | Rigét, Frank F | ||
| 23 | δ13C, standard deviation | δ13C std dev | ± | Rigét, Frank F | ||
| 24 | Trophic level description | Trophic level desc | Rigét, Frank F | |||
| 25 | Standard deviation | Std dev | ± | Rigét, Frank F | trophic level |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
277 data points