Sexual difference in PCB congener distributions of burbot (Lota lota) from Lake Erie
Identifieur interne : 000165 ( Main/Exploration ); précédent : 000164; suivant : 000166Sexual difference in PCB congener distributions of burbot (Lota lota) from Lake Erie
Auteurs : Martin A. Stapanian [États-Unis] ; Charles P. Madenjian [États-Unis] ; Richard R. Rediske [États-Unis] ; James P. O'Keefe [États-Unis]Source :
- Chemosphere : (Oxford) [ 0045-6535 ] ; 2013.
Descripteurs français
- Pascal (Inist)
English descriptors
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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.
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O'Keefe</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Grand Valley State University, Annis Water Resources Institute, 740 West Shoreline Drive</s1><s2>Muskegon, MI 49441</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Michigan</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">14-0027260</idno><date when="2013">2013</date><idno type="stanalyst">PASCAL 14-0027260 INIST</idno><idno type="RBID">Pascal:14-0027260</idno><idno type="wicri:Area/PascalFrancis/Corpus">000008</idno><idno type="wicri:Area/PascalFrancis/Curation">000109</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000007</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000007</idno><idno type="wicri:doubleKey">0045-6535:2013:Stapanian M:sexual:difference:in</idno><idno type="wicri:Area/Main/Merge">000168</idno><idno type="wicri:Area/Main/Curation">000165</idno><idno type="wicri:Area/Main/Exploration">000165</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Sexual difference in PCB congener distributions of burbot (Lota lota) from Lake Erie</title><author><name sortKey="Stapanian, Martin A" sort="Stapanian, Martin A" uniqKey="Stapanian M" first="Martin A." last="Stapanian">Martin A. Stapanian</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>US Geological Survey, Great Lakes Science Center, Lake Erie Biological Station, 6100 Columbus Avenue</s1><s2>Sandusky, OH 44870</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><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><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>US Geological Survey, Great Lakes Science Center, 1451 Green Road</s1><s2>Ann Arbor, MI 48105</s2><s3>USA</s3><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Michigan</region></placeName></affiliation></author><author><name sortKey="Rediske, Richard R" sort="Rediske, Richard R" uniqKey="Rediske R" first="Richard R." last="Rediske">Richard R. Rediske</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Grand Valley State University, Annis Water Resources Institute, 740 West Shoreline Drive</s1><s2>Muskegon, MI 49441</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Michigan</region></placeName></affiliation></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><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Grand Valley State University, Annis Water Resources Institute, 740 West Shoreline Drive</s1><s2>Muskegon, MI 49441</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Michigan</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Chemosphere : (Oxford)</title><title level="j" type="abbreviated">Chemosphere : (Oxf.)</title><idno type="ISSN">0045-6535</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Chemosphere : (Oxford)</title><title level="j" type="abbreviated">Chemosphere : (Oxf.)</title><idno type="ISSN">0045-6535</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Age</term><term>Aromatic compound</term><term>Chemometrics</term><term>Chlorocarbon</term><term>Contamination</term><term>Freshwater environment</term><term>Isomer</term><term>Lake Erie</term><term>Lota lota</term><term>Polychlorobiphenyls</term><term>Principal component analysis</term><term>Sexual difference</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Différence sexuelle</term><term>Polychlorobiphényles</term><term>Isomère</term><term>Lota lota</term><term>Lac Erié</term><term>Age</term><term>Analyse composante principale</term><term>Contamination</term><term>Hydrocarbure chloré</term><term>Composé aromatique</term><term>Milieu eau douce</term><term>Chimiométrie</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>Michigan</li><li>Ohio</li></region></list><tree><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><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></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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