Females Exceed Males in Mercury Concentrations of Burbot Lota lota
Examination of differences in contaminant concentrations between the sexes of fish, across several fish species, may show clues for important behavioral and physiological differences between the sexes. We determined whole-fish total mercury (Hg) concentrations of 25 male and 25 female adult burbot L...
Gespeichert in:
| Veröffentlicht in: | Archives of environmental contamination and toxicology 2015-05, Vol.68 (4), p.678-688 |
|---|---|
| Hauptverfasser: | , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 688 |
|---|---|
| container_issue | 4 |
| container_start_page | 678 |
| container_title | Archives of environmental contamination and toxicology |
| container_volume | 68 |
| creator | Madenjian, Charles P. Stapanian, Martin A. Cott, Peter A. Krabbenhoft, David P. Edwards, William H. Ogilvie, Lynn M. Mychek-Londer, Justin G. DeWild, John F. |
| description | Examination of differences in contaminant concentrations between the sexes of fish, across several fish species, may show clues for important behavioral and physiological differences between the sexes. We determined whole-fish total mercury (Hg) concentrations of 25 male and 25 female adult burbot
Lota lota
captured in Lake Erie during summer 2011 and of 14 male and 18 female adult burbot captured in Great Slave Lake (Northwest Territories, Canada) during winter 2013. On average, females had 22 % greater Hg concentrations
than males. This difference was probably not due to a greater feeding rate by females because results from previous studies based on polychlorinated biphenyl determinations of these same burbot indicated that males fed at a substantially greater rate than females. Based on our determinations of Hg concentrations in the gonads and somatic tissue of 5 ripe females and 5 ripe males, this difference was not attributable to changes in Hg concentration immediately after spawning due to the release of gametes. Furthermore, bioenergetics modeling results from previous studies indicated that growth dilution would not explain any portion of this observed difference in Hg concentrations between the sexes. We therefore conclude that this difference was most likely due to a substantially faster rate of Hg elimination by males compared with females. Male burbot exhibit among the greatest gonadosomatic indices (GSIs) of all male fishes, with their testes accounting for between 10 and 15 % of their body weight when the fish are in ripe condition. Androgens have been linked to enhanced Hg-elimination rates in other vertebrates. If androgen production is positively related to GSI, then male burbot would be expected to have among the greatest androgen levels of all fishes. Thus, we hypothesize that male burbot eliminate Hg from their bodies faster than most other male fishes and that this explains the greater Hg concentration in females compared with males. |
| doi_str_mv | 10.1007/s00244-015-0131-1 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1685816544</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3643678071</sourcerecordid><originalsourceid>FETCH-LOGICAL-c508t-e330d7c47d87a19993e52053b4f57053b7215cdd75b70daeeaca039d9290be1c3</originalsourceid><addsrcrecordid>eNqNkU9rGzEQxUVJqR23HyCXsJBLLpvO6I8lHRvjNAGHXtqz0GrHwWG9cqVdiL995DgNpRDoQRoG_d4bRo-xM4QrBNBfMwCXsgZU5Qis8QObohS8Bg3ihE0BLNRSSJyw05wfAZAbIz-xCVdzboDbKbu-oa3vKFfLp0DUVvcvzaav7imFMe2rRewD9UPywyb2uYrr6npMTRyqVRx81ZXrM_u49l2mL691xn7dLH8ubuvVj-93i2-rOigwQ01CQKuD1K3RHq21ghQHJRq5VvpQNUcV2larRkPriXzwIGxruYWGMIgZuzz67lL8PVIe3HaTA3Wd7ymO2eHcKINzJeX_oCCFEWALevEP-hjH1JdFCjW3EjUqUyg8UiHFnBOt3S5ttj7tHYI7ZOGOWbiShTtk4bBozl-dx2ZL7Zviz-cXgB-BXJ76B0p_jX7X9Rld15Ei</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1669417158</pqid></control><display><type>article</type><title>Females Exceed Males in Mercury Concentrations of Burbot Lota lota</title><source>MEDLINE</source><source>Springer Nature - Complete Springer Journals</source><creator>Madenjian, Charles P. ; Stapanian, Martin A. ; Cott, Peter A. ; Krabbenhoft, David P. ; Edwards, William H. ; Ogilvie, Lynn M. ; Mychek-Londer, Justin G. ; DeWild, John F.</creator><creatorcontrib>Madenjian, Charles P. ; Stapanian, Martin A. ; Cott, Peter A. ; Krabbenhoft, David P. ; Edwards, William H. ; Ogilvie, Lynn M. ; Mychek-Londer, Justin G. ; DeWild, John F.</creatorcontrib><description>Examination of differences in contaminant concentrations between the sexes of fish, across several fish species, may show clues for important behavioral and physiological differences between the sexes. We determined whole-fish total mercury (Hg) concentrations of 25 male and 25 female adult burbot
Lota lota
captured in Lake Erie during summer 2011 and of 14 male and 18 female adult burbot captured in Great Slave Lake (Northwest Territories, Canada) during winter 2013. On average, females had 22 % greater Hg concentrations
than males. This difference was probably not due to a greater feeding rate by females because results from previous studies based on polychlorinated biphenyl determinations of these same burbot indicated that males fed at a substantially greater rate than females. Based on our determinations of Hg concentrations in the gonads and somatic tissue of 5 ripe females and 5 ripe males, this difference was not attributable to changes in Hg concentration immediately after spawning due to the release of gametes. Furthermore, bioenergetics modeling results from previous studies indicated that growth dilution would not explain any portion of this observed difference in Hg concentrations between the sexes. We therefore conclude that this difference was most likely due to a substantially faster rate of Hg elimination by males compared with females. Male burbot exhibit among the greatest gonadosomatic indices (GSIs) of all male fishes, with their testes accounting for between 10 and 15 % of their body weight when the fish are in ripe condition. Androgens have been linked to enhanced Hg-elimination rates in other vertebrates. If androgen production is positively related to GSI, then male burbot would be expected to have among the greatest androgen levels of all fishes. Thus, we hypothesize that male burbot eliminate Hg from their bodies faster than most other male fishes and that this explains the greater Hg concentration in females compared with males.</description><identifier>ISSN: 0090-4341</identifier><identifier>EISSN: 1432-0703</identifier><identifier>DOI: 10.1007/s00244-015-0131-1</identifier><identifier>PMID: 25628029</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Adults ; Androgens ; Animals ; Bioaccumulation ; Bioenergetics ; Body weight ; Canada ; Concentration (composition) ; Contaminants ; Contamination ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental Monitoring ; Feeding rates ; Female ; Females ; Fish ; Food chains ; Gadiformes - metabolism ; Geology ; Gonads ; Indicator organisms ; Lake Erie ; Lakes ; Lota lota ; Male ; Males ; Mercury ; Mercury (metal) ; Mercury - metabolism ; Metabolism ; Monitoring/Environmental Analysis ; PCB ; Pollution ; Polychlorinated biphenyls ; Polychlorinated Biphenyls - metabolism ; Sex ; Sex Factors ; Soil Science & Conservation ; Spawning ; Studies ; Testes ; Toxicity ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - metabolism ; Water pollution</subject><ispartof>Archives of environmental contamination and toxicology, 2015-05, Vol.68 (4), p.678-688</ispartof><rights>Springer Science+Business Media New York (outside the USA) 2015</rights><rights>Springer Science+Business Media New York 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c508t-e330d7c47d87a19993e52053b4f57053b7215cdd75b70daeeaca039d9290be1c3</citedby><cites>FETCH-LOGICAL-c508t-e330d7c47d87a19993e52053b4f57053b7215cdd75b70daeeaca039d9290be1c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00244-015-0131-1$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00244-015-0131-1$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25628029$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Madenjian, Charles P.</creatorcontrib><creatorcontrib>Stapanian, Martin A.</creatorcontrib><creatorcontrib>Cott, Peter A.</creatorcontrib><creatorcontrib>Krabbenhoft, David P.</creatorcontrib><creatorcontrib>Edwards, William H.</creatorcontrib><creatorcontrib>Ogilvie, Lynn M.</creatorcontrib><creatorcontrib>Mychek-Londer, Justin G.</creatorcontrib><creatorcontrib>DeWild, John F.</creatorcontrib><title>Females Exceed Males in Mercury Concentrations of Burbot Lota lota</title><title>Archives of environmental contamination and toxicology</title><addtitle>Arch Environ Contam Toxicol</addtitle><addtitle>Arch Environ Contam Toxicol</addtitle><description>Examination of differences in contaminant concentrations between the sexes of fish, across several fish species, may show clues for important behavioral and physiological differences between the sexes. We determined whole-fish total mercury (Hg) concentrations of 25 male and 25 female adult burbot
Lota lota
captured in Lake Erie during summer 2011 and of 14 male and 18 female adult burbot captured in Great Slave Lake (Northwest Territories, Canada) during winter 2013. On average, females had 22 % greater Hg concentrations
than males. This difference was probably not due to a greater feeding rate by females because results from previous studies based on polychlorinated biphenyl determinations of these same burbot indicated that males fed at a substantially greater rate than females. Based on our determinations of Hg concentrations in the gonads and somatic tissue of 5 ripe females and 5 ripe males, this difference was not attributable to changes in Hg concentration immediately after spawning due to the release of gametes. Furthermore, bioenergetics modeling results from previous studies indicated that growth dilution would not explain any portion of this observed difference in Hg concentrations between the sexes. We therefore conclude that this difference was most likely due to a substantially faster rate of Hg elimination by males compared with females. Male burbot exhibit among the greatest gonadosomatic indices (GSIs) of all male fishes, with their testes accounting for between 10 and 15 % of their body weight when the fish are in ripe condition. Androgens have been linked to enhanced Hg-elimination rates in other vertebrates. If androgen production is positively related to GSI, then male burbot would be expected to have among the greatest androgen levels of all fishes. Thus, we hypothesize that male burbot eliminate Hg from their bodies faster than most other male fishes and that this explains the greater Hg concentration in females compared with males.</description><subject>Adults</subject><subject>Androgens</subject><subject>Animals</subject><subject>Bioaccumulation</subject><subject>Bioenergetics</subject><subject>Body weight</subject><subject>Canada</subject><subject>Concentration (composition)</subject><subject>Contaminants</subject><subject>Contamination</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental Monitoring</subject><subject>Feeding rates</subject><subject>Female</subject><subject>Females</subject><subject>Fish</subject><subject>Food chains</subject><subject>Gadiformes - metabolism</subject><subject>Geology</subject><subject>Gonads</subject><subject>Indicator organisms</subject><subject>Lake Erie</subject><subject>Lakes</subject><subject>Lota lota</subject><subject>Male</subject><subject>Males</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Mercury - metabolism</subject><subject>Metabolism</subject><subject>Monitoring/Environmental Analysis</subject><subject>PCB</subject><subject>Pollution</subject><subject>Polychlorinated biphenyls</subject><subject>Polychlorinated Biphenyls - metabolism</subject><subject>Sex</subject><subject>Sex Factors</subject><subject>Soil Science & Conservation</subject><subject>Spawning</subject><subject>Studies</subject><subject>Testes</subject><subject>Toxicity</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - metabolism</subject><subject>Water pollution</subject><issn>0090-4341</issn><issn>1432-0703</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqNkU9rGzEQxUVJqR23HyCXsJBLLpvO6I8lHRvjNAGHXtqz0GrHwWG9cqVdiL995DgNpRDoQRoG_d4bRo-xM4QrBNBfMwCXsgZU5Qis8QObohS8Bg3ihE0BLNRSSJyw05wfAZAbIz-xCVdzboDbKbu-oa3vKFfLp0DUVvcvzaav7imFMe2rRewD9UPywyb2uYrr6npMTRyqVRx81ZXrM_u49l2mL691xn7dLH8ubuvVj-93i2-rOigwQ01CQKuD1K3RHq21ghQHJRq5VvpQNUcV2larRkPriXzwIGxruYWGMIgZuzz67lL8PVIe3HaTA3Wd7ymO2eHcKINzJeX_oCCFEWALevEP-hjH1JdFCjW3EjUqUyg8UiHFnBOt3S5ttj7tHYI7ZOGOWbiShTtk4bBozl-dx2ZL7Zviz-cXgB-BXJ76B0p_jX7X9Rld15Ei</recordid><startdate>20150501</startdate><enddate>20150501</enddate><creator>Madenjian, Charles P.</creator><creator>Stapanian, Martin A.</creator><creator>Cott, Peter A.</creator><creator>Krabbenhoft, David P.</creator><creator>Edwards, William H.</creator><creator>Ogilvie, Lynn M.</creator><creator>Mychek-Londer, Justin G.</creator><creator>DeWild, John F.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7T7</scope><scope>7TV</scope><scope>7U7</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X7</scope><scope>7XB</scope><scope>87Z</scope><scope>88E</scope><scope>88I</scope><scope>8C1</scope><scope>8FD</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>F~G</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>L.-</scope><scope>M0C</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>P64</scope><scope>PATMY</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>7QH</scope><scope>7ST</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>SOI</scope><scope>7SU</scope><scope>KR7</scope></search><sort><creationdate>20150501</creationdate><title>Females Exceed Males in Mercury Concentrations of Burbot Lota lota</title><author>Madenjian, Charles P. ; Stapanian, Martin A. ; Cott, Peter A. ; Krabbenhoft, David P. ; Edwards, William H. ; Ogilvie, Lynn M. ; Mychek-Londer, Justin G. ; DeWild, John F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c508t-e330d7c47d87a19993e52053b4f57053b7215cdd75b70daeeaca039d9290be1c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adults</topic><topic>Androgens</topic><topic>Animals</topic><topic>Bioaccumulation</topic><topic>Bioenergetics</topic><topic>Body weight</topic><topic>Canada</topic><topic>Concentration (composition)</topic><topic>Contaminants</topic><topic>Contamination</topic><topic>Earth and Environmental Science</topic><topic>Ecotoxicology</topic><topic>Environment</topic><topic>Environmental Chemistry</topic><topic>Environmental Health</topic><topic>Environmental Monitoring</topic><topic>Feeding rates</topic><topic>Female</topic><topic>Females</topic><topic>Fish</topic><topic>Food chains</topic><topic>Gadiformes - metabolism</topic><topic>Geology</topic><topic>Gonads</topic><topic>Indicator organisms</topic><topic>Lake Erie</topic><topic>Lakes</topic><topic>Lota lota</topic><topic>Male</topic><topic>Males</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Mercury - metabolism</topic><topic>Metabolism</topic><topic>Monitoring/Environmental Analysis</topic><topic>PCB</topic><topic>Pollution</topic><topic>Polychlorinated biphenyls</topic><topic>Polychlorinated Biphenyls - metabolism</topic><topic>Sex</topic><topic>Sex Factors</topic><topic>Soil Science & Conservation</topic><topic>Spawning</topic><topic>Studies</topic><topic>Testes</topic><topic>Toxicity</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Pollutants, Chemical - metabolism</topic><topic>Water pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Madenjian, Charles P.</creatorcontrib><creatorcontrib>Stapanian, Martin A.</creatorcontrib><creatorcontrib>Cott, Peter A.</creatorcontrib><creatorcontrib>Krabbenhoft, David P.</creatorcontrib><creatorcontrib>Edwards, William H.</creatorcontrib><creatorcontrib>Ogilvie, Lynn M.</creatorcontrib><creatorcontrib>Mychek-Londer, Justin G.</creatorcontrib><creatorcontrib>DeWild, John F.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Global (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ABI/INFORM Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Business Premium Collection (Alumni)</collection><collection>Health Research Premium Collection</collection><collection>ABI/INFORM Global (Corporate)</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection (Alumni Edition)</collection><collection>ProQuest Business Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ABI/INFORM Professional Advanced</collection><collection>ABI/INFORM Global</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Business (Alumni)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Archives of environmental contamination and toxicology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Madenjian, Charles P.</au><au>Stapanian, Martin A.</au><au>Cott, Peter A.</au><au>Krabbenhoft, David P.</au><au>Edwards, William H.</au><au>Ogilvie, Lynn M.</au><au>Mychek-Londer, Justin G.</au><au>DeWild, John F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Females Exceed Males in Mercury Concentrations of Burbot Lota lota</atitle><jtitle>Archives of environmental contamination and toxicology</jtitle><stitle>Arch Environ Contam Toxicol</stitle><addtitle>Arch Environ Contam Toxicol</addtitle><date>2015-05-01</date><risdate>2015</risdate><volume>68</volume><issue>4</issue><spage>678</spage><epage>688</epage><pages>678-688</pages><issn>0090-4341</issn><eissn>1432-0703</eissn><abstract>Examination of differences in contaminant concentrations between the sexes of fish, across several fish species, may show clues for important behavioral and physiological differences between the sexes. We determined whole-fish total mercury (Hg) concentrations of 25 male and 25 female adult burbot
Lota lota
captured in Lake Erie during summer 2011 and of 14 male and 18 female adult burbot captured in Great Slave Lake (Northwest Territories, Canada) during winter 2013. On average, females had 22 % greater Hg concentrations
than males. This difference was probably not due to a greater feeding rate by females because results from previous studies based on polychlorinated biphenyl determinations of these same burbot indicated that males fed at a substantially greater rate than females. Based on our determinations of Hg concentrations in the gonads and somatic tissue of 5 ripe females and 5 ripe males, this difference was not attributable to changes in Hg concentration immediately after spawning due to the release of gametes. Furthermore, bioenergetics modeling results from previous studies indicated that growth dilution would not explain any portion of this observed difference in Hg concentrations between the sexes. We therefore conclude that this difference was most likely due to a substantially faster rate of Hg elimination by males compared with females. Male burbot exhibit among the greatest gonadosomatic indices (GSIs) of all male fishes, with their testes accounting for between 10 and 15 % of their body weight when the fish are in ripe condition. Androgens have been linked to enhanced Hg-elimination rates in other vertebrates. If androgen production is positively related to GSI, then male burbot would be expected to have among the greatest androgen levels of all fishes. Thus, we hypothesize that male burbot eliminate Hg from their bodies faster than most other male fishes and that this explains the greater Hg concentration in females compared with males.</abstract><cop>Boston</cop><pub>Springer US</pub><pmid>25628029</pmid><doi>10.1007/s00244-015-0131-1</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0090-4341 |
| ispartof | Archives of environmental contamination and toxicology, 2015-05, Vol.68 (4), p.678-688 |
| issn | 0090-4341 1432-0703 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1685816544 |
| source | MEDLINE; Springer Nature - Complete Springer Journals |
| subjects | Adults Androgens Animals Bioaccumulation Bioenergetics Body weight Canada Concentration (composition) Contaminants Contamination Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Environmental Monitoring Feeding rates Female Females Fish Food chains Gadiformes - metabolism Geology Gonads Indicator organisms Lake Erie Lakes Lota lota Male Males Mercury Mercury (metal) Mercury - metabolism Metabolism Monitoring/Environmental Analysis PCB Pollution Polychlorinated biphenyls Polychlorinated Biphenyls - metabolism Sex Sex Factors Soil Science & Conservation Spawning Studies Testes Toxicity Water Pollutants, Chemical - analysis Water Pollutants, Chemical - metabolism Water pollution |
| title | Females Exceed Males in Mercury Concentrations of Burbot Lota lota |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T22%3A18%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Females%20Exceed%20Males%20in%20Mercury%20Concentrations%20of%20Burbot%20Lota%20lota&rft.jtitle=Archives%20of%20environmental%20contamination%20and%20toxicology&rft.au=Madenjian,%20Charles%20P.&rft.date=2015-05-01&rft.volume=68&rft.issue=4&rft.spage=678&rft.epage=688&rft.pages=678-688&rft.issn=0090-4341&rft.eissn=1432-0703&rft_id=info:doi/10.1007/s00244-015-0131-1&rft_dat=%3Cproquest_cross%3E3643678071%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1669417158&rft_id=info:pmid/25628029&rfr_iscdi=true |