Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus)
We examined the ontogenetic dynamics of mercury accumulation in sea lamprey (Petromyzon marinus) from the Connecticut River, USA. Mercury concentrations in eggs (mean 84 ng·g 1 wet weight) were lowest of all life stages and correlated to concentrations in females. There was a higher rate of materna...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f06-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-012 |
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crcansciencepubl:10.1139/f06-012 2024-06-23T07:55:40+00:00 Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) Drevnick, Paul E Horgan, Martin J Oris, James T Kynard, Boyd E 2006 http://dx.doi.org/10.1139/f06-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-012 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 5, page 1058-1066 ISSN 0706-652X 1205-7533 journal-article 2006 crcansciencepubl https://doi.org/10.1139/f06-012 2024-06-06T04:11:14Z We examined the ontogenetic dynamics of mercury accumulation in sea lamprey (Petromyzon marinus) from the Connecticut River, USA. Mercury concentrations in eggs (mean 84 ng·g 1 wet weight) were lowest of all life stages and correlated to concentrations in females. There was a higher rate of maternal transfer of mercury to eggs compared with teleosts. Ammocoetes had high mercury concentrations for their trophic level (e.g., mean of age-4 ammocoetes 492 ng·g 1 wet weight). A further investigation of four streams showed that ammocoetes reflected the level of contamination in their nursery streams. Concentrations of mercury decreased during metamorphosis from ammocoete to adult. Mercury concentrations in adults ranged from 83 to 942 ng·g 1 wet weight and, unlike teleosts, showed no relation to sex, length, or weight. We provide evidence from stable isotope analyses that this high variability is due to feeding ecology. There are fundamental differences in mercury accumulation between sea lamprey and teleosts. Article in Journal/Newspaper Northwest Atlantic Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 63 5 1058 1066 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
We examined the ontogenetic dynamics of mercury accumulation in sea lamprey (Petromyzon marinus) from the Connecticut River, USA. Mercury concentrations in eggs (mean 84 ng·g 1 wet weight) were lowest of all life stages and correlated to concentrations in females. There was a higher rate of maternal transfer of mercury to eggs compared with teleosts. Ammocoetes had high mercury concentrations for their trophic level (e.g., mean of age-4 ammocoetes 492 ng·g 1 wet weight). A further investigation of four streams showed that ammocoetes reflected the level of contamination in their nursery streams. Concentrations of mercury decreased during metamorphosis from ammocoete to adult. Mercury concentrations in adults ranged from 83 to 942 ng·g 1 wet weight and, unlike teleosts, showed no relation to sex, length, or weight. We provide evidence from stable isotope analyses that this high variability is due to feeding ecology. There are fundamental differences in mercury accumulation between sea lamprey and teleosts. |
format |
Article in Journal/Newspaper |
author |
Drevnick, Paul E Horgan, Martin J Oris, James T Kynard, Boyd E |
spellingShingle |
Drevnick, Paul E Horgan, Martin J Oris, James T Kynard, Boyd E Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
author_facet |
Drevnick, Paul E Horgan, Martin J Oris, James T Kynard, Boyd E |
author_sort |
Drevnick, Paul E |
title |
Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
title_short |
Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
title_full |
Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
title_fullStr |
Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
title_full_unstemmed |
Ontogenetic dynamics of mercury accumulation in Northwest Atlantic sea lamprey ( Petromyzon marinus) |
title_sort |
ontogenetic dynamics of mercury accumulation in northwest atlantic sea lamprey ( petromyzon marinus) |
publisher |
Canadian Science Publishing |
publishDate |
2006 |
url |
http://dx.doi.org/10.1139/f06-012 http://www.nrcresearchpress.com/doi/pdf/10.1139/f06-012 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 63, issue 5, page 1058-1066 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f06-012 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
63 |
container_issue |
5 |
container_start_page |
1058 |
op_container_end_page |
1066 |
_version_ |
1802648338372231168 |