Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard
Little is known about the prevalence of the parasite Toxoplasma gondii in the arctic marine food chain of Svalbard, Norway. In this study, plasma samples were analyzed for T. gondii antibodies using a direct agglutination test. Antibody prevalence was 45.6% among polar bears (Ursus maritimus), 18.7%...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.811596 2023-05-15T15:10:43+02:00 Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard Jensen, S K Aars, Jon Lydersen, Christian Kovacs, Kit Maureen Åsbakk, K LATITUDE: 78.900000 * LONGITUDE: 18.010000 2010-05-15 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.811596 https://doi.org/10.1594/PANGAEA.811596 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.811596 https://doi.org/10.1594/PANGAEA.811596 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Jensen, S K; Aars, Jon; Lydersen, Christian; Kovacs, Kit Maureen; Åsbakk, K (2009): The prevalence of Toxoplasma gondii in polar bears and their marine mammal prey: evidence for a marine transmission pathway? Polar Biology, 33(5), 599-606, https://doi.org/10.1007/s00300-009-0735-x Biological sample BIOS International Polar Year (2007-2008) IPY Svalbard Svalbard_bear Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.811596 https://doi.org/10.1007/s00300-009-0735-x 2023-01-20T07:33:00Z Little is known about the prevalence of the parasite Toxoplasma gondii in the arctic marine food chain of Svalbard, Norway. In this study, plasma samples were analyzed for T. gondii antibodies using a direct agglutination test. Antibody prevalence was 45.6% among polar bears (Ursus maritimus), 18.7% among ringed seals (Pusa hispida) and 66.7% among adult bearded seals (Erignathus barbatus) from Svalbard, but no sign of antibodies were found in bearded seal pups, harbour seals (Phoca vitulina), white whales (Delphinapterus leucas) or narwhals (Monodon monoceros) from the same area. Prevalence was significantly higher in male polar bears (52.3%) compared with females (39.3%), likely due to dietary differences between the sexes. Compared to an earlier study, T. gondii prevalence in polar bears has doubled in the past decade. Consistently, an earlier study on ringed seals did not detect T. gondii. The high recent prevalence in polar bears, ringed seals and bearded seals could be caused by an increase in the number or survivorship of oocysts being transported via the North Atlantic Current to Svalbard from southern latitudes. Warmer water temperatures have led to influxes of temperate marine invertebrate filter-feeders that could be vectors for oocysts and warmer water is also likely to favour higher survivorship of oocycts. However, a more diverse than normal array of migratory birds in the Archipelago recently, as well as a marked increase in cruise-ship and other human traffic are also potential sources of T. gondii. Dataset Arctic bearded seal Delphinapterus leucas Erignathus barbatus International Polar Year IPY Monodon monoceros narwhal* north atlantic current North Atlantic Phoca vitulina Polar Biology Pusa hispida Svalbard Ursus maritimus PANGAEA - Data Publisher for Earth & Environmental Science Arctic Norway Svalbard ENVELOPE(18.010000,18.010000,78.900000,78.900000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Biological sample BIOS International Polar Year (2007-2008) IPY Svalbard Svalbard_bear |
spellingShingle |
Biological sample BIOS International Polar Year (2007-2008) IPY Svalbard Svalbard_bear Jensen, S K Aars, Jon Lydersen, Christian Kovacs, Kit Maureen Åsbakk, K Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
topic_facet |
Biological sample BIOS International Polar Year (2007-2008) IPY Svalbard Svalbard_bear |
description |
Little is known about the prevalence of the parasite Toxoplasma gondii in the arctic marine food chain of Svalbard, Norway. In this study, plasma samples were analyzed for T. gondii antibodies using a direct agglutination test. Antibody prevalence was 45.6% among polar bears (Ursus maritimus), 18.7% among ringed seals (Pusa hispida) and 66.7% among adult bearded seals (Erignathus barbatus) from Svalbard, but no sign of antibodies were found in bearded seal pups, harbour seals (Phoca vitulina), white whales (Delphinapterus leucas) or narwhals (Monodon monoceros) from the same area. Prevalence was significantly higher in male polar bears (52.3%) compared with females (39.3%), likely due to dietary differences between the sexes. Compared to an earlier study, T. gondii prevalence in polar bears has doubled in the past decade. Consistently, an earlier study on ringed seals did not detect T. gondii. The high recent prevalence in polar bears, ringed seals and bearded seals could be caused by an increase in the number or survivorship of oocysts being transported via the North Atlantic Current to Svalbard from southern latitudes. Warmer water temperatures have led to influxes of temperate marine invertebrate filter-feeders that could be vectors for oocysts and warmer water is also likely to favour higher survivorship of oocycts. However, a more diverse than normal array of migratory birds in the Archipelago recently, as well as a marked increase in cruise-ship and other human traffic are also potential sources of T. gondii. |
format |
Dataset |
author |
Jensen, S K Aars, Jon Lydersen, Christian Kovacs, Kit Maureen Åsbakk, K |
author_facet |
Jensen, S K Aars, Jon Lydersen, Christian Kovacs, Kit Maureen Åsbakk, K |
author_sort |
Jensen, S K |
title |
Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
title_short |
Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
title_full |
Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
title_fullStr |
Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
title_full_unstemmed |
Rates of seropositivity for Toxoplasma gondii antibodies in polar bears and marine mammals around Svalbard |
title_sort |
rates of seropositivity for toxoplasma gondii antibodies in polar bears and marine mammals around svalbard |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.811596 https://doi.org/10.1594/PANGAEA.811596 |
op_coverage |
LATITUDE: 78.900000 * LONGITUDE: 18.010000 |
long_lat |
ENVELOPE(18.010000,18.010000,78.900000,78.900000) |
geographic |
Arctic Norway Svalbard |
geographic_facet |
Arctic Norway Svalbard |
genre |
Arctic bearded seal Delphinapterus leucas Erignathus barbatus International Polar Year IPY Monodon monoceros narwhal* north atlantic current North Atlantic Phoca vitulina Polar Biology Pusa hispida Svalbard Ursus maritimus |
genre_facet |
Arctic bearded seal Delphinapterus leucas Erignathus barbatus International Polar Year IPY Monodon monoceros narwhal* north atlantic current North Atlantic Phoca vitulina Polar Biology Pusa hispida Svalbard Ursus maritimus |
op_source |
Supplement to: Jensen, S K; Aars, Jon; Lydersen, Christian; Kovacs, Kit Maureen; Åsbakk, K (2009): The prevalence of Toxoplasma gondii in polar bears and their marine mammal prey: evidence for a marine transmission pathway? Polar Biology, 33(5), 599-606, https://doi.org/10.1007/s00300-009-0735-x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.811596 https://doi.org/10.1594/PANGAEA.811596 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.811596 https://doi.org/10.1007/s00300-009-0735-x |
_version_ |
1766341687612801024 |