Persistent organic pollutants, δ¹³C and d15N in zooplankton, fish and bird species in Kongsfjorden according to season
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| Auteurs principaux: | , , , , , , , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2011
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| _version_ | 1867167669997797376 |
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| author | Hallanger, Ingeborg G Warner, Nicholas A Ruus, Anders Evenset, Anita Christensen, Guttorm Herzke, Dorte Gabrielsen, Geir W Borgå, Katrine |
| author_facet | Hallanger, Ingeborg G Warner, Nicholas A Ruus, Anders Evenset, Anita Christensen, Guttorm Herzke, Dorte Gabrielsen, Geir W Borgå, Katrine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Seasonality in biomagnification of persistent organic pollutants (POPs; polychlorinated biphenyls, chlorinated pesticides, and brominated flame retardants) in Arctic marine pelagic food webs was investigated in Kongsfjorden, Svalbard, Norway. Trophic magnification factors (TMFs; average factor change in concentration between two trophic levels) were used to measure food web biomagnification in biota in May, July, and October 2007. Pelagic zooplankton (seven species), fish (five species), and seabirds (two species) were included in the study. For most POP compounds, highest TMFs were found in July and lowest were in May. Seasonally changing TMFs were a result of seasonally changing POP concentrations and the d15N-derived trophic positions of the species included in the food web. These seasonal differences in TMFs were independent of inclusion/exclusion of organisms based on physiology (i.e., warm- versus cold-blooded organisms) in the food web. The higher TMFs in July, when the food web consisted of a higher degree of boreal species, suggest that future warming of the Arctic and increased invasion by boreal species can result in increased food web magnification. Knowledge of the seasonal variation in POP biomagnification is a prerequisite for understanding changes in POP biomagnification caused by climate change. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_810532 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Persistent organic pollutants, δ¹³C and d15N in zooplankton, fish and bird species in Kongsfjorden according to season Hallanger, Ingeborg G Warner, Nicholas A Ruus, Anders Evenset, Anita Christensen, Guttorm Herzke, Dorte Gabrielsen, Geir W Borgå, Katrine Biological sample; BIOS; International Polar Year (2007-2008); IPY; Kongsfjorden_2007; Kongsfjorden, Spitsbergen, Arctic Seasonality in biomagnification of persistent organic pollutants (POPs; polychlorinated biphenyls, chlorinated pesticides, and brominated flame retardants) in Arctic marine pelagic food webs was investigated in Kongsfjorden, Svalbard, Norway. Trophic magnification factors (TMFs; average factor change in concentration between two trophic levels) were used to measure food web biomagnification in biota in May, July, and October 2007. Pelagic zooplankton (seven species), fish (five species), and seabirds (two species) were included in the study. For most POP compounds, highest TMFs were found in July and lowest were in May. Seasonally changing TMFs were a result of seasonally changing POP concentrations and the d15N-derived trophic positions of the species included in the food web. These seasonal differences in TMFs were independent of inclusion/exclusion of organisms based on physiology (i.e., warm- versus cold-blooded organisms) in the food web. The higher TMFs in July, when the food web consisted of a higher degree of boreal species, suggest that future warming of the Arctic and increased invasion by boreal species can result in increased food web magnification. Knowledge of the seasonal variation in POP biomagnification is a prerequisite for understanding changes in POP biomagnification caused by climate change. |
| title | Persistent organic pollutants, δ¹³C and d15N in zooplankton, fish and bird species in Kongsfjorden according to season |
| topic | Biological sample; BIOS; International Polar Year (2007-2008); IPY; Kongsfjorden_2007; Kongsfjorden, Spitsbergen, Arctic |
| url | https://doi.org/10.1594/PANGAEA.810532 |