Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus )
Blubber samples from 18 harp seals taken near the Saguenay River in the Gulf of St. Lawrence were analysed for DDT metabolites, PCBs, and dieldrin. The concentration of total DDT and metabolites [Formula: see text] ranged from 3.1 to 22.6 ppm, PCBs (as Aroclor ® 1254) from 2 to 22 ppm, dieldrin from...
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Canadian Science Publishing
1973
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crcansciencepubl:10.1139/f73-106 2023-12-17T10:48:18+01:00 Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) Addison, R. F. Kerr, S. R. Dale, J. Sergeant, D. E. 1973 http://dx.doi.org/10.1139/f73-106 http://www.nrcresearchpress.com/doi/pdf/10.1139/f73-106 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 30, issue 5, page 595-600 ISSN 0015-296X General Medicine journal-article 1973 crcansciencepubl https://doi.org/10.1139/f73-106 2023-11-19T13:38:39Z Blubber samples from 18 harp seals taken near the Saguenay River in the Gulf of St. Lawrence were analysed for DDT metabolites, PCBs, and dieldrin. The concentration of total DDT and metabolites [Formula: see text] ranged from 3.1 to 22.6 ppm, PCBs (as Aroclor ® 1254) from 2 to 22 ppm, dieldrin from 0.1 to 0.3 ppm of blubber. Rank correlation of residue level and age indicated that significant portions of the [Formula: see text] and PCB variance could be assigned to increased residue levels with age. Within the [Formula: see text] group, DDE alone showed a strong proportional increase in concentration with age. Dieldrin concentration was not appreciably correlated with age. Among factors other than age, changes in blubber thickness did not account for any significant amount of the variance in blubber residue concentration. Examination of other published data suggested that parturition and/or lactation may cause reductions in blubber residue concentrations. Article in Journal/Newspaper Pagophilus groenlandicus Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 30 5 595 600 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Addison, R. F. Kerr, S. R. Dale, J. Sergeant, D. E. Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
topic_facet |
General Medicine |
description |
Blubber samples from 18 harp seals taken near the Saguenay River in the Gulf of St. Lawrence were analysed for DDT metabolites, PCBs, and dieldrin. The concentration of total DDT and metabolites [Formula: see text] ranged from 3.1 to 22.6 ppm, PCBs (as Aroclor ® 1254) from 2 to 22 ppm, dieldrin from 0.1 to 0.3 ppm of blubber. Rank correlation of residue level and age indicated that significant portions of the [Formula: see text] and PCB variance could be assigned to increased residue levels with age. Within the [Formula: see text] group, DDE alone showed a strong proportional increase in concentration with age. Dieldrin concentration was not appreciably correlated with age. Among factors other than age, changes in blubber thickness did not account for any significant amount of the variance in blubber residue concentration. Examination of other published data suggested that parturition and/or lactation may cause reductions in blubber residue concentrations. |
format |
Article in Journal/Newspaper |
author |
Addison, R. F. Kerr, S. R. Dale, J. Sergeant, D. E. |
author_facet |
Addison, R. F. Kerr, S. R. Dale, J. Sergeant, D. E. |
author_sort |
Addison, R. F. |
title |
Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
title_short |
Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
title_full |
Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
title_fullStr |
Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
title_full_unstemmed |
Variation of Organochlorine Residue Levels with Age in Gulf of St. Lawrence Harp Seals ( Pagophilus groenlandicus ) |
title_sort |
variation of organochlorine residue levels with age in gulf of st. lawrence harp seals ( pagophilus groenlandicus ) |
publisher |
Canadian Science Publishing |
publishDate |
1973 |
url |
http://dx.doi.org/10.1139/f73-106 http://www.nrcresearchpress.com/doi/pdf/10.1139/f73-106 |
genre |
Pagophilus groenlandicus |
genre_facet |
Pagophilus groenlandicus |
op_source |
Journal of the Fisheries Research Board of Canada volume 30, issue 5, page 595-600 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f73-106 |
container_title |
Journal of the Fisheries Research Board of Canada |
container_volume |
30 |
container_issue |
5 |
container_start_page |
595 |
op_container_end_page |
600 |
_version_ |
1785572449564229632 |