Sexual difference in PCB congener distributions of burbot (Lota lota) from Lake Erie.
Identifieur interne : 000120 ( Main/Exploration ); précédent : 000119; suivant : 000121Sexual difference in PCB congener distributions of burbot (Lota lota) from Lake Erie.
Auteurs : Martin A. Stapanian [États-Unis] ; Charles P. Madenjian ; Richard R. Rediske ; James P. O'KeefeSource :
- Chemosphere [ 1879-1298 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Lacs.
- métabolisme : Gadiformes, Polluants chimiques de l'eau, Polychlorobiphényles.
- Animaux, Facteurs sexuels, Femelle, Mâle, Région des Grands Lacs, Surveillance de l'environnement.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Polychlorinated Biphenyls, Water Pollutants, Chemical.
- geographic : Great Lakes Region.
- chemistry : Lakes.
- metabolism : Gadiformes.
- Animals, Environmental Monitoring, Female, Male, Sex Factors.
Abstract
Concentrations of 86 congeners of polychlorinated biphenyls (PCBs) were determined for 25 adult female and 25 adult male burbot (Lota lota) from Lake Erie. Significant differences in mean proportions of total PCB concentration between males and females ages 14-17 were found for 26 congeners. Males generally had higher mean proportions of hexachloro congeners, whereas females had higher mean proportions of more highly chlorinated congeners. In contrast, only four congeners exhibited differences between males and females ages 6-13 in mean proportions of total PCB. Therefore, the sexual difference in PCB congener distribution widened for older burbot. Males ages 14-17 also had higher proportions of certain hexachloro congeners than the other three demographic groups (males ages 6-13, females ages 6-13, and females ages 14-17) we examined. The reverse was true for more highly chlorinated congeners. The results supported a previous hypothesis that older male burbot spent a substantial amount of time feeding in the vicinity of mouths of rivers with sediment contaminated with PCBs. However, additional studies are needed to clarify and corroborate this apparent "hot spot" effect, such as seasonal movements, spatial distributions, and diet of burbot; and PCB congener distributions of various species of prey fishes captured at various locations throughout the eastern basin of Lake Erie and at different locations in the contaminated rivers.
DOI: 10.1016/j.chemosphere.2013.08.016
PubMed: 24001671
Affiliations:
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Stapanian</name><affiliation wicri:level="2"><nlm:affiliation>US Geological Survey, Great Lakes Science Center, Lake Erie Biological Station, 6100 Columbus Avenue, Sandusky, OH 44870, United States. Electronic address: mstapanian@usgs.gov.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>US Geological Survey, Great Lakes Science Center, Lake Erie Biological Station, 6100 Columbus Avenue, Sandusky, OH 44870</wicri:regionArea><placeName><region type="state">Ohio</region></placeName></affiliation></author><author><name sortKey="Madenjian, Charles P" sort="Madenjian, Charles P" uniqKey="Madenjian C" first="Charles P" last="Madenjian">Charles P. Madenjian</name></author><author><name sortKey="Rediske, Richard R" sort="Rediske, Richard R" uniqKey="Rediske R" first="Richard R" last="Rediske">Richard R. Rediske</name></author><author><name sortKey="O Keefe, James P" sort="O Keefe, James P" uniqKey="O Keefe J" first="James P" last="O'Keefe">James P. O'Keefe</name></author></analytic><series><title level="j">Chemosphere</title><idno type="eISSN">1879-1298</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Environmental Monitoring (MeSH)</term><term>Female (MeSH)</term><term>Gadiformes (metabolism)</term><term>Great Lakes Region (MeSH)</term><term>Lakes (chemistry)</term><term>Male (MeSH)</term><term>Polychlorinated Biphenyls (metabolism)</term><term>Sex Factors (MeSH)</term><term>Water Pollutants, Chemical (metabolism)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term><term>Facteurs sexuels (MeSH)</term><term>Femelle (MeSH)</term><term>Gadiformes (métabolisme)</term><term>Lacs (composition chimique)</term><term>Mâle (MeSH)</term><term>Polluants chimiques de l'eau (métabolisme)</term><term>Polychlorobiphényles (métabolisme)</term><term>Région des Grands Lacs (MeSH)</term><term>Surveillance de l'environnement (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Polychlorinated Biphenyls</term><term>Water Pollutants, Chemical</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Great Lakes Region</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Lakes</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Lacs</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Gadiformes</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Gadiformes</term><term>Polluants chimiques de l'eau</term><term>Polychlorobiphényles</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Environmental Monitoring</term><term>Female</term><term>Male</term><term>Sex Factors</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Facteurs sexuels</term><term>Femelle</term><term>Mâle</term><term>Région des Grands Lacs</term><term>Surveillance de l'environnement</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Concentrations of 86 congeners of polychlorinated biphenyls (PCBs) were determined for 25 adult female and 25 adult male burbot (Lota lota) from Lake Erie. Significant differences in mean proportions of total PCB concentration between males and females ages 14-17 were found for 26 congeners. Males generally had higher mean proportions of hexachloro congeners, whereas females had higher mean proportions of more highly chlorinated congeners. In contrast, only four congeners exhibited differences between males and females ages 6-13 in mean proportions of total PCB. Therefore, the sexual difference in PCB congener distribution widened for older burbot. Males ages 14-17 also had higher proportions of certain hexachloro congeners than the other three demographic groups (males ages 6-13, females ages 6-13, and females ages 14-17) we examined. The reverse was true for more highly chlorinated congeners. The results supported a previous hypothesis that older male burbot spent a substantial amount of time feeding in the vicinity of mouths of rivers with sediment contaminated with PCBs. However, additional studies are needed to clarify and corroborate this apparent "hot spot" effect, such as seasonal movements, spatial distributions, and diet of burbot; and PCB congener distributions of various species of prey fishes captured at various locations throughout the eastern basin of Lake Erie and at different locations in the contaminated rivers.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Ohio</li></region></list><tree><noCountry><name sortKey="Madenjian, Charles P" sort="Madenjian, Charles P" uniqKey="Madenjian C" first="Charles P" last="Madenjian">Charles P. Madenjian</name><name sortKey="O Keefe, James P" sort="O Keefe, James P" uniqKey="O Keefe J" first="James P" last="O'Keefe">James P. O'Keefe</name><name sortKey="Rediske, Richard R" sort="Rediske, Richard R" uniqKey="Rediske R" first="Richard R" last="Rediske">Richard R. Rediske</name></noCountry><country name="États-Unis"><region name="Ohio"><name sortKey="Stapanian, Martin A" sort="Stapanian, Martin A" uniqKey="Stapanian M" first="Martin A" last="Stapanian">Martin A. Stapanian</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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