Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts
Abstract Mercury (Hg) biomonitoring and toxicological risk assessments for marine mammals commonly sample different tissues, making comparisons with toxicity benchmarks and among species and regions difficult. Few studies have examined how life‐history events, such as fasting, influence the relation...
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crwiley:10.1002/etc.3365 2024-09-15T18:04:43+00:00 Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts Peterson, Sarah H. Ackerman, Joshua T. Costa, Daniel P. Office of Naval Research 2016 http://dx.doi.org/10.1002/etc.3365 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.3365 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.3365 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.3365 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fetc.3365 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.3365 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 35, issue 8, page 2103-2110 ISSN 0730-7268 1552-8618 journal-article 2016 crwiley https://doi.org/10.1002/etc.3365 2024-08-27T04:25:46Z Abstract Mercury (Hg) biomonitoring and toxicological risk assessments for marine mammals commonly sample different tissues, making comparisons with toxicity benchmarks and among species and regions difficult. Few studies have examined how life‐history events, such as fasting, influence the relationship between total Hg (THg) concentrations in different tissues. The authors evaluated the relationships between THg concentrations in blood, muscle, and hair of female and male northern elephant seals ( Mirounga angustirostris ) at the start and end of the breeding and molting fasts. The relationships between tissues varied among tissue pairs and differed by sampling period and sex. Blood and muscle were generally related at all time periods; however, hair, an inert tissue, did not strongly represent the metabolically active tissues (blood and muscle) at all times of year. The strongest relationships between THg concentrations in hair and those in blood or muscle were observed during periods of active hair growth (end of the molting period) or during time periods when internal body conditions were similar to those when the hair was grown (end of the breeding fast). The results indicate that THg concentrations in blood or muscle can be translated to the other tissue type using the equations developed but that THg concentrations in hair were generally a poor index of internal THg concentrations except during the end of fasting periods. Environ Toxicol Chem 2016;35:2103–2110. © 2016 SETAC Article in Journal/Newspaper Elephant Seals Wiley Online Library Environmental Toxicology and Chemistry 35 8 2103 2110 |
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Wiley Online Library |
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English |
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Abstract Mercury (Hg) biomonitoring and toxicological risk assessments for marine mammals commonly sample different tissues, making comparisons with toxicity benchmarks and among species and regions difficult. Few studies have examined how life‐history events, such as fasting, influence the relationship between total Hg (THg) concentrations in different tissues. The authors evaluated the relationships between THg concentrations in blood, muscle, and hair of female and male northern elephant seals ( Mirounga angustirostris ) at the start and end of the breeding and molting fasts. The relationships between tissues varied among tissue pairs and differed by sampling period and sex. Blood and muscle were generally related at all time periods; however, hair, an inert tissue, did not strongly represent the metabolically active tissues (blood and muscle) at all times of year. The strongest relationships between THg concentrations in hair and those in blood or muscle were observed during periods of active hair growth (end of the molting period) or during time periods when internal body conditions were similar to those when the hair was grown (end of the breeding fast). The results indicate that THg concentrations in blood or muscle can be translated to the other tissue type using the equations developed but that THg concentrations in hair were generally a poor index of internal THg concentrations except during the end of fasting periods. Environ Toxicol Chem 2016;35:2103–2110. © 2016 SETAC |
author2 |
Office of Naval Research |
format |
Article in Journal/Newspaper |
author |
Peterson, Sarah H. Ackerman, Joshua T. Costa, Daniel P. |
spellingShingle |
Peterson, Sarah H. Ackerman, Joshua T. Costa, Daniel P. Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
author_facet |
Peterson, Sarah H. Ackerman, Joshua T. Costa, Daniel P. |
author_sort |
Peterson, Sarah H. |
title |
Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
title_short |
Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
title_full |
Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
title_fullStr |
Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
title_full_unstemmed |
Mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
title_sort |
mercury correlations among blood, muscle, and hair of northern elephant seals during the breeding and molting fasts |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1002/etc.3365 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.3365 https://onlinelibrary.wiley.com/doi/pdf/10.1002/etc.3365 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/etc.3365 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fetc.3365 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.3365 |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_source |
Environmental Toxicology and Chemistry volume 35, issue 8, page 2103-2110 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.3365 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
35 |
container_issue |
8 |
container_start_page |
2103 |
op_container_end_page |
2110 |
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1810442326476062720 |