Polychlorinated biphenyl congener distributions in burbot: evidence for a latitude effect.
Identifieur interne : 000341 ( Ncbi/Merge ); précédent : 000340; suivant : 000342Polychlorinated biphenyl congener distributions in burbot: evidence for a latitude effect.
Auteurs : Martin A. Stapanian [États-Unis] ; Charles P. Madenjian ; Peter A. Cott ; Richard R. Rediske ; James P. O'KeefeSource :
- Environmental toxicology and chemistry / SETAC [ 1552-8618 ] ; 2014.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Polychlorobiphényles.
- composition chimique : Chlore.
- méthodes : Surveillance de l'environnement.
- Animaux, Canada, Femelle, Gadiformes, Géographie, Lacs, Mâle.
- Wicri :
- geographic : Canada.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Polychlorinated Biphenyls.
- chemical , chemistry : Chlorine.
- geographic : Canada.
- methods : Environmental Monitoring.
- Animals, Female, Gadiformes, Geography, Lakes, Male.
Abstract
The authors compared the distributions of the congeners of polychlorinated biphenyls (PCBs) detected in whole-body samples of burbot (Lota lota) from Great Slave Lake and Lake Erie. Total PCB concentrations in Great Slave Lake burbot were about one-sixtieth of the concentrations in Lake Erie burbot. Burbot from Great Slave Lake contained a higher proportion of lower-chlorinated (2-6 chlorines) congeners than did burbot from Lake Erie; the reverse occurred for more highly chlorinated (7-9 chlorines) congeners. Hexachloro congeners, followed by pentachloro congeners, dominated the proportions of total PCBs in burbot from both lakes. There were no differences between sexes in whole-body samples or between gonad and somatic tissues in the proportions of the 39 congeners and 3 sets of coeluters detected in burbot from Great Slave Lake. In contrast, there were distinct sex differences in congener distributions for older burbot from Lake Erie. The results generally supported a prediction of higher proportions of lower-chlorinated PCB homologs in organisms in remote polar areas. However, the latitudinal effect on PCB congener distribution may be more complex than that portrayed in previous studies.
DOI: 10.1002/etc.2703
PubMed: 25088677
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Cott</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. 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O'Keefe</name></author></analytic><series><title level="j">Environmental toxicology and chemistry / SETAC</title><idno type="eISSN">1552-8618</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Canada (MeSH)</term><term>Chlorine (chemistry)</term><term>Environmental Monitoring (methods)</term><term>Female (MeSH)</term><term>Gadiformes (MeSH)</term><term>Geography (MeSH)</term><term>Lakes (MeSH)</term><term>Male (MeSH)</term><term>Polychlorinated Biphenyls (analysis)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term><term>Canada (MeSH)</term><term>Chlore (composition chimique)</term><term>Femelle (MeSH)</term><term>Gadiformes (MeSH)</term><term>Géographie (MeSH)</term><term>Lacs (MeSH)</term><term>Mâle (MeSH)</term><term>Polychlorobiphényles (analyse)</term><term>Surveillance de l'environnement (méthodes)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Polychlorinated Biphenyls</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Chlorine</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Canada</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Polychlorobiphényles</term></keywords><keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Chlore</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Environmental Monitoring</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Surveillance de l'environnement</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Female</term><term>Gadiformes</term><term>Geography</term><term>Lakes</term><term>Male</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Canada</term><term>Femelle</term><term>Gadiformes</term><term>Géographie</term><term>Lacs</term><term>Mâle</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Canada</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The authors compared the distributions of the congeners of polychlorinated biphenyls (PCBs) detected in whole-body samples of burbot (Lota lota) from Great Slave Lake and Lake Erie. Total PCB concentrations in Great Slave Lake burbot were about one-sixtieth of the concentrations in Lake Erie burbot. Burbot from Great Slave Lake contained a higher proportion of lower-chlorinated (2-6 chlorines) congeners than did burbot from Lake Erie; the reverse occurred for more highly chlorinated (7-9 chlorines) congeners. Hexachloro congeners, followed by pentachloro congeners, dominated the proportions of total PCBs in burbot from both lakes. There were no differences between sexes in whole-body samples or between gonad and somatic tissues in the proportions of the 39 congeners and 3 sets of coeluters detected in burbot from Great Slave Lake. In contrast, there were distinct sex differences in congener distributions for older burbot from Lake Erie. The results generally supported a prediction of higher proportions of lower-chlorinated PCB homologs in organisms in remote polar areas. However, the latitudinal effect on PCB congener distribution may be more complex than that portrayed in previous studies.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">25088677</PMID><DateCreated><Year>2014</Year><Month>10</Month><Day>20</Day></DateCreated><DateCompleted><Year>2015</Year><Month>05</Month><Day>05</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1552-8618</ISSN><JournalIssue CitedMedium="Internet"><Volume>33</Volume><Issue>11</Issue><PubDate><Year>2014</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Environmental toxicology and chemistry / SETAC</Title><ISOAbbreviation>Environ. Toxicol. Chem.</ISOAbbreviation></Journal><ArticleTitle>Polychlorinated biphenyl congener distributions in burbot: evidence for a latitude effect.</ArticleTitle><Pagination><MedlinePgn>2448-54</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/etc.2703</ELocationID><Abstract><AbstractText>The authors compared the distributions of the congeners of polychlorinated biphenyls (PCBs) detected in whole-body samples of burbot (Lota lota) from Great Slave Lake and Lake Erie. Total PCB concentrations in Great Slave Lake burbot were about one-sixtieth of the concentrations in Lake Erie burbot. Burbot from Great Slave Lake contained a higher proportion of lower-chlorinated (2-6 chlorines) congeners than did burbot from Lake Erie; the reverse occurred for more highly chlorinated (7-9 chlorines) congeners. Hexachloro congeners, followed by pentachloro congeners, dominated the proportions of total PCBs in burbot from both lakes. There were no differences between sexes in whole-body samples or between gonad and somatic tissues in the proportions of the 39 congeners and 3 sets of coeluters detected in burbot from Great Slave Lake. In contrast, there were distinct sex differences in congener distributions for older burbot from Lake Erie. The results generally supported a prediction of higher proportions of lower-chlorinated PCB homologs in organisms in remote polar areas. 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Cott</name><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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