Geographical variation of persistent organochlorine concentrations in blubber of ringed seal ( Phoca hispida ) from the Canadian Arctic: Univariate and multivariate approaches
Identifieur interne : 000F36 ( Main/Exploration ); précédent : 000F35; suivant : 000F37Geographical variation of persistent organochlorine concentrations in blubber of ringed seal ( Phoca hispida ) from the Canadian Arctic: Univariate and multivariate approaches
Auteurs : I. Michael Weis [Canada] ; Derek Muir [Canada]Source :
- Environmental Pollution [ 0269-7491 ] ; 1997.
Abstract
Geographical variation of organochlorine (OC) concentrations in ringed seal (Phoca hispida) in the Canadian Arctic was studied using univariate and multivariate statistical techniques. The dataset consisted of 80 individual OC components (58 PCB congeners plus DDT- and chlordane (CHL)-related compounds, toxaphene, hexachlorocyclohexanes (HCH), chlorobenzenes (CBz), and dieldrin) determined in 221 ringed seal blubber samples from 13 locations throughout the Canadian Arctic from the period 1983 to 1989. Mean concentrations of the major OC groups in ringed seal blubber (ΣPCBs, ΣDDT, ΣCHL and toxaphene), adjusted for the age and sex of the seals, showed few significant geographical differences. Principal components analysis was used to examine geographical trends. Significant differences in mean factor scores for three of four principal components were found between sampling locations. Locations in the western and high Arctic could be distinguished from those in Hudson Bay by highest scores along principal component two which was associated principally with CBz. PCB congeners with six or more chlorine substitutions declined with increasing north latitude, whereas more volatile OCs (CBz, HCH, less chlorinated PCBs) increased in the proportion of total OCs with latitude. Proportions of less chlorinated PCBs also decreased with increasing longitude, whereas slopes of regressions for more highly chlorinated PCBs increased significantly. The results were generally consistent with the ‘cold condensation’ hypothesis of increasing proportions of more volatile OCs with increasing latitude and distance from sources.
Url:
DOI: 10.1016/S0269-7491(97)00048-1
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000541
- to stream Istex, to step Curation: 000541
- to stream Istex, to step Checkpoint: 000A89
- to stream Main, to step Merge: 000F96
- to stream Main, to step Curation: 000F36
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Geographical variation of persistent organochlorine concentrations in blubber of ringed seal ( Phoca hispida ) from the Canadian Arctic: Univariate and multivariate approaches</title>
<author><name sortKey="Weis, I Michael" sort="Weis, I Michael" uniqKey="Weis I" first="I. Michael" last="Weis">I. Michael Weis</name>
</author>
<author><name sortKey="Muir, Derek C G" sort="Muir, Derek C G" uniqKey="Muir D" first="Derek C. G." last="Muir">Derek Muir</name>
<affiliation><country>Canada</country>
<placeName><settlement type="city">Burlington (Ontario)</settlement>
<region type="province">Ontario</region>
</placeName>
<orgName type="lab" n="5">Centre canadien des eaux intérieures</orgName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:C80345952679857EE409C02B0C7F3CA0166EDB6E</idno>
<date when="1997" year="1997">1997</date>
<idno type="doi">10.1016/S0269-7491(97)00048-1</idno>
<idno type="url">https://api.istex.fr/document/C80345952679857EE409C02B0C7F3CA0166EDB6E/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">000541</idno>
<idno type="wicri:Area/Istex/Curation">000541</idno>
<idno type="wicri:Area/Istex/Checkpoint">000A89</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000A89</idno>
<idno type="wicri:doubleKey">0269-7491:1997:Weis I:geographical:variation:of</idno>
<idno type="wicri:Area/Main/Merge">000F96</idno>
<idno type="wicri:Area/Main/Curation">000F36</idno>
<idno type="wicri:Area/Main/Exploration">000F36</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a">Geographical variation of persistent organochlorine concentrations in blubber of ringed seal ( Phoca hispida ) from the Canadian Arctic: Univariate and multivariate approaches</title>
<author><name sortKey="Weis, I Michael" sort="Weis, I Michael" uniqKey="Weis I" first="I. Michael" last="Weis">I. Michael Weis</name>
<affiliation wicri:level="1"><country xml:lang="fr">Canada</country>
<wicri:regionArea>Department of Biological Sciences and Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4</wicri:regionArea>
<wicri:noRegion>ON N9B 3P4</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Muir, Derek C G" sort="Muir, Derek C G" uniqKey="Muir D" first="Derek C. G." last="Muir">Derek Muir</name>
<affiliation wicri:level="1"><country xml:lang="fr">Canada</country>
<wicri:regionArea>National Water Research Institute, Environment Canada, Burlington, ON L7R 4A6</wicri:regionArea>
<wicri:noRegion>ON L7R 4A6</wicri:noRegion>
<placeName><settlement type="city">Burlington (Ontario)</settlement>
<region type="province">Ontario</region>
</placeName>
<orgName type="lab" n="5">Centre canadien des eaux intérieures</orgName>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j">Environmental Pollution</title>
<title level="j" type="abbrev">ENPO</title>
<idno type="ISSN">0269-7491</idno>
<imprint><publisher>ELSEVIER</publisher>
<date type="published" when="1997">1997</date>
<biblScope unit="volume">96</biblScope>
<biblScope unit="issue">3</biblScope>
<biblScope unit="page" from="321">321</biblScope>
<biblScope unit="page" to="333">333</biblScope>
</imprint>
<idno type="ISSN">0269-7491</idno>
</series>
<idno type="istex">C80345952679857EE409C02B0C7F3CA0166EDB6E</idno>
<idno type="DOI">10.1016/S0269-7491(97)00048-1</idno>
<idno type="PII">S0269-7491(97)00048-1</idno>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0269-7491</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass></textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Geographical variation of organochlorine (OC) concentrations in ringed seal (Phoca hispida) in the Canadian Arctic was studied using univariate and multivariate statistical techniques. The dataset consisted of 80 individual OC components (58 PCB congeners plus DDT- and chlordane (CHL)-related compounds, toxaphene, hexachlorocyclohexanes (HCH), chlorobenzenes (CBz), and dieldrin) determined in 221 ringed seal blubber samples from 13 locations throughout the Canadian Arctic from the period 1983 to 1989. Mean concentrations of the major OC groups in ringed seal blubber (ΣPCBs, ΣDDT, ΣCHL and toxaphene), adjusted for the age and sex of the seals, showed few significant geographical differences. Principal components analysis was used to examine geographical trends. Significant differences in mean factor scores for three of four principal components were found between sampling locations. Locations in the western and high Arctic could be distinguished from those in Hudson Bay by highest scores along principal component two which was associated principally with CBz. PCB congeners with six or more chlorine substitutions declined with increasing north latitude, whereas more volatile OCs (CBz, HCH, less chlorinated PCBs) increased in the proportion of total OCs with latitude. Proportions of less chlorinated PCBs also decreased with increasing longitude, whereas slopes of regressions for more highly chlorinated PCBs increased significantly. The results were generally consistent with the ‘cold condensation’ hypothesis of increasing proportions of more volatile OCs with increasing latitude and distance from sources.</div>
</front>
</TEI>
<affiliations><list><country><li>Canada</li>
</country>
<region><li>Ontario</li>
</region>
<settlement><li>Burlington (Ontario)</li>
</settlement>
<orgName><li>Centre canadien des eaux intérieures</li>
</orgName>
</list>
<tree><country name="Canada"><noRegion><name sortKey="Weis, I Michael" sort="Weis, I Michael" uniqKey="Weis I" first="I. Michael" last="Weis">I. Michael Weis</name>
</noRegion>
<name sortKey="Muir, Derek C G" sort="Muir, Derek C G" uniqKey="Muir D" first="Derek C. G." last="Muir">Derek Muir</name>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Eau/explor/LotaV3/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000F36 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000F36 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Eau |area= LotaV3 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:C80345952679857EE409C02B0C7F3CA0166EDB6E |texte= Geographical variation of persistent organochlorine concentrations in blubber of ringed seal ( Phoca hispida ) from the Canadian Arctic: Univariate and multivariate approaches }}
This area was generated with Dilib version V0.6.39. |