Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008)
Mercury concentrations ([Hg]) in Arctic food fish often exceed guidelines for human subsistence consumption. Previous research on two food fish species, Arctic char (Salvelinus alpinus) and lake trout (Salvelinus namaycush), indicates that anadromous fish have lower [Hg] than nonanadromous fish, but...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.837319 2023-05-15T14:38:45+02:00 Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) Swanson, Heidi K Gantner, Nikolaus Kidd, Karen A Muir, Derek C G Reist, James D MEDIAN LATITUDE: 68.701694 * MEDIAN LONGITUDE: -106.707389 * SOUTH-BOUND LATITUDE: 68.052000 * WEST-BOUND LONGITUDE: -107.710000 * NORTH-BOUND LATITUDE: 69.380000 * EAST-BOUND LONGITUDE: -106.240000 2011-10-24 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.837319 https://doi.org/10.1594/PANGAEA.837319 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.837319 https://doi.org/10.1594/PANGAEA.837319 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Swanson, Heidi K; Gantner, Nikolaus; Kidd, Karen A; Muir, Derek C G; Reist, James D (2011): Comparison of mercury concentrations in landlocked, resident, and sea-run fish (Salvelinus spp.) from Nunavut, Canada. Environmental Toxicology and Chemistry, 30(6), 1459-1467, https://doi.org/10.1002/etc.517 International Polar Year (2007-2008) IPY Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.837319 https://doi.org/10.1002/etc.517 2023-01-20T07:33:21Z Mercury concentrations ([Hg]) in Arctic food fish often exceed guidelines for human subsistence consumption. Previous research on two food fish species, Arctic char (Salvelinus alpinus) and lake trout (Salvelinus namaycush), indicates that anadromous fish have lower [Hg] than nonanadromous fish, but there have been no intraregional comparisons. Also, no comparisons of [Hg] among anadromous (sea-run), resident (marine access but do not migrate), and landlocked (no marine access) life history types of Arctic char and lake trout have been published. Using intraregional data from 10 lakes in the West Kitikmeot area of Nunavut, Canada, we found that [Hg] varied significantly among species and life history types. Differences among species-life history types were best explained by age-at-size and C:N ratios (indicator of lipid); [Hg] was significantly and negatively related to both. At a standardized fork length of 500 mm, lake trout had significantly higher [Hg] (mean 0.17 µg/g wet wt) than Arctic char (0.09 µg/g). Anadromous and resident Arctic char had significantly lower [Hg] (each 0.04 µg/g) than landlocked Arctic char (0.19 µg/g). Anadromous lake trout had significantly lower [Hg] (0.12 µg/g) than resident lake trout (0.18 µg/g), but no significant difference in [Hg] was seen between landlocked lake trout (0.21 µg/g) and other life history types. Our results are relevant to human health assessments and consumption guidance and will inform models of Hg accumulation in Arctic fish. Dataset Arctic Human health International Polar Year IPY Kitikmeot Nunavut Salvelinus alpinus PANGAEA - Data Publisher for Earth & Environmental Science Arctic Nunavut Canada ENVELOPE(-107.710000,-106.240000,69.380000,68.052000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
International Polar Year (2007-2008) IPY |
spellingShingle |
International Polar Year (2007-2008) IPY Swanson, Heidi K Gantner, Nikolaus Kidd, Karen A Muir, Derek C G Reist, James D Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
topic_facet |
International Polar Year (2007-2008) IPY |
description |
Mercury concentrations ([Hg]) in Arctic food fish often exceed guidelines for human subsistence consumption. Previous research on two food fish species, Arctic char (Salvelinus alpinus) and lake trout (Salvelinus namaycush), indicates that anadromous fish have lower [Hg] than nonanadromous fish, but there have been no intraregional comparisons. Also, no comparisons of [Hg] among anadromous (sea-run), resident (marine access but do not migrate), and landlocked (no marine access) life history types of Arctic char and lake trout have been published. Using intraregional data from 10 lakes in the West Kitikmeot area of Nunavut, Canada, we found that [Hg] varied significantly among species and life history types. Differences among species-life history types were best explained by age-at-size and C:N ratios (indicator of lipid); [Hg] was significantly and negatively related to both. At a standardized fork length of 500 mm, lake trout had significantly higher [Hg] (mean 0.17 µg/g wet wt) than Arctic char (0.09 µg/g). Anadromous and resident Arctic char had significantly lower [Hg] (each 0.04 µg/g) than landlocked Arctic char (0.19 µg/g). Anadromous lake trout had significantly lower [Hg] (0.12 µg/g) than resident lake trout (0.18 µg/g), but no significant difference in [Hg] was seen between landlocked lake trout (0.21 µg/g) and other life history types. Our results are relevant to human health assessments and consumption guidance and will inform models of Hg accumulation in Arctic fish. |
format |
Dataset |
author |
Swanson, Heidi K Gantner, Nikolaus Kidd, Karen A Muir, Derek C G Reist, James D |
author_facet |
Swanson, Heidi K Gantner, Nikolaus Kidd, Karen A Muir, Derek C G Reist, James D |
author_sort |
Swanson, Heidi K |
title |
Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
title_short |
Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
title_full |
Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
title_fullStr |
Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
title_full_unstemmed |
Life-history traits of two Salvelinus species and mercury concentrations in fish and prey in ten Canadian lakes (2006-2008) |
title_sort |
life-history traits of two salvelinus species and mercury concentrations in fish and prey in ten canadian lakes (2006-2008) |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.837319 https://doi.org/10.1594/PANGAEA.837319 |
op_coverage |
MEDIAN LATITUDE: 68.701694 * MEDIAN LONGITUDE: -106.707389 * SOUTH-BOUND LATITUDE: 68.052000 * WEST-BOUND LONGITUDE: -107.710000 * NORTH-BOUND LATITUDE: 69.380000 * EAST-BOUND LONGITUDE: -106.240000 |
long_lat |
ENVELOPE(-107.710000,-106.240000,69.380000,68.052000) |
geographic |
Arctic Nunavut Canada |
geographic_facet |
Arctic Nunavut Canada |
genre |
Arctic Human health International Polar Year IPY Kitikmeot Nunavut Salvelinus alpinus |
genre_facet |
Arctic Human health International Polar Year IPY Kitikmeot Nunavut Salvelinus alpinus |
op_source |
Supplement to: Swanson, Heidi K; Gantner, Nikolaus; Kidd, Karen A; Muir, Derek C G; Reist, James D (2011): Comparison of mercury concentrations in landlocked, resident, and sea-run fish (Salvelinus spp.) from Nunavut, Canada. Environmental Toxicology and Chemistry, 30(6), 1459-1467, https://doi.org/10.1002/etc.517 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.837319 https://doi.org/10.1594/PANGAEA.837319 |
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.837319 https://doi.org/10.1002/etc.517 |
_version_ |
1766310784117243904 |