Effects of dietary methylmercury on growth performance and tissue burden in juvenile green (Acipenser medirostris) and white sturgeon (A. transmontanus)
Identifieur interne : 000753 ( Main/Merge ); précédent : 000752; suivant : 000754Effects of dietary methylmercury on growth performance and tissue burden in juvenile green (Acipenser medirostris) and white sturgeon (A. transmontanus)
Auteurs : Jang-Won Lee [États-Unis] ; Nicola De Riu [États-Unis, Italie] ; Seunghyung Lee [États-Unis] ; Sungchul C. Bai [Corée du Sud] ; Giuseppe Moniello [Italie] ; Silas S. O. Hung [États-Unis]Source :
- Aquatic toxicology [ 0166-445X ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Mercure, Milieu aquatique, Polluant.
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Abstract
Triplicate groups of juvenile green and white sturgeon (30 ± 2 g) were exposed to one of the four nominal concentrations of dietary methylmercury (MeHg, 0 (control), 25, 50, and 100 mg MeHg/kg diet) for 8 weeks to determine and compare the effects on growth performance and mercury (Hg) tissue burden in the two sturgeon species. Mortality, growth performance as measured by percent body weight increase per day, hepatosomatic index, proximate composition of whole body, and Hg burden in the whole body, gill, heart, liver, kidney, and white muscle were determined to assess the adverse growth effects and bioaccumulation of dietary MeHg in sturgeon. Significantly higher mortality and lower growth rate (p < 0.05) were noted in green and white sturgeon fed the MeHg diets compared to the controls. Green sturgeon fed the MeHg diets exhibited earlier and more severe adverse effects compared to white sturgeon. Mercury accumulated in all tissues in a dose-dependent manner regardless of species, and the highest Hg concentrations were found in the kidneys of both species. Dietary MeHg had no significant effect (p > 0.05) on the whole body proximate compositions of either sturgeon species. In conclusion, green sturgeon was more susceptible to dietary MeHg toxicity than white sturgeon in our 8-week growth experiment based on the higher mortality and lower growth rate and body energy contents.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Effects of dietary methylmercury on growth performance and tissue burden in juvenile green (Acipenser medirostris) and white sturgeon (A. transmontanus)</title><author><name sortKey="Lee, Jang Won" sort="Lee, Jang Won" uniqKey="Lee J" first="Jang-Won" last="Lee">Jang-Won Lee</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="De Riu, Nicola" sort="De Riu, Nicola" uniqKey="De Riu N" first="Nicola" last="De Riu">Nicola De Riu</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Animal Biology, University ofSassari, Via Vienna 2</s1><s2>07100 Sassari</s2><s3>ITA</s3><sZ>2 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Italie</country><wicri:noRegion>07100 Sassari</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Seunghyung" sort="Lee, Seunghyung" uniqKey="Lee S" first="Seunghyung" last="Lee">Seunghyung Lee</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Bai, Sungchul C" sort="Bai, Sungchul C" uniqKey="Bai S" first="Sungchul C." last="Bai">Sungchul C. 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Hung</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0016619</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 12-0016619 INIST</idno><idno type="RBID">Pascal:12-0016619</idno><idno type="wicri:Area/PascalFrancis/Corpus">000073</idno><idno type="wicri:Area/PascalFrancis/Curation">000301</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000087</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000087</idno><idno type="wicri:doubleKey">0166-445X:2011:Lee J:effects:of:dietary</idno><idno type="wicri:Area/Main/Merge">000753</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Effects of dietary methylmercury on growth performance and tissue burden in juvenile green (Acipenser medirostris) and white sturgeon (A. transmontanus)</title><author><name sortKey="Lee, Jang Won" sort="Lee, Jang Won" uniqKey="Lee J" first="Jang-Won" last="Lee">Jang-Won Lee</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="De Riu, Nicola" sort="De Riu, Nicola" uniqKey="De Riu N" first="Nicola" last="De Riu">Nicola De Riu</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Animal Biology, University ofSassari, Via Vienna 2</s1><s2>07100 Sassari</s2><s3>ITA</s3><sZ>2 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Italie</country><wicri:noRegion>07100 Sassari</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Seunghyung" sort="Lee, Seunghyung" uniqKey="Lee S" first="Seunghyung" last="Lee">Seunghyung Lee</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Bai, Sungchul C" sort="Bai, Sungchul C" uniqKey="Bai S" first="Sungchul C." last="Bai">Sungchul C. Bai</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Feeds and Foods Nutrition Research Center/Department of Marine Bio-materials and Aquaculture, Pukyong National University, 599-1</s1><s2>Daeyeon 3-Dong, Busan 608-737</s2><s3>KOR</s3><sZ>4 aut.</sZ></inist:fA14><country>Corée du Sud</country><wicri:noRegion>Daeyeon 3-Dong, Busan 608-737</wicri:noRegion></affiliation></author><author><name sortKey="Moniello, Giuseppe" sort="Moniello, Giuseppe" uniqKey="Moniello G" first="Giuseppe" last="Moniello">Giuseppe Moniello</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Animal Biology, University ofSassari, Via Vienna 2</s1><s2>07100 Sassari</s2><s3>ITA</s3><sZ>2 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Italie</country><wicri:noRegion>07100 Sassari</wicri:noRegion></affiliation></author><author><name sortKey="Hung, Silas S O" sort="Hung, Silas S O" uniqKey="Hung S" first="Silas S. O." last="Hung">Silas S. O. Hung</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Animal Science, University of California, One Shields Avenue</s1><s2>Davis, CA 95616-8521</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Aquatic toxicology</title><title level="j" type="abbreviated">Aquat. toxicol.</title><idno type="ISSN">0166-445X</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Aquatic toxicology</title><title level="j" type="abbreviated">Aquat. toxicol.</title><idno type="ISSN">0166-445X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser transmontanus</term><term>Aquatic environment</term><term>Diet</term><term>Ecotoxicology</term><term>Growth</term><term>Mercury</term><term>Performance</term><term>Pollutant</term><term>Toxicity</term><term>Young animal</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Régime alimentaire</term><term>Croissance</term><term>Performance</term><term>Animal jeune</term><term>Mercure</term><term>Toxicité</term><term>Milieu aquatique</term><term>Ecotoxicologie</term><term>Polluant</term><term>Acipenser transmontanus</term><term>Mercure(méthyl)</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Mercure</term><term>Milieu aquatique</term><term>Polluant</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Triplicate groups of juvenile green and white sturgeon (30 ± 2 g) were exposed to one of the four nominal concentrations of dietary methylmercury (MeHg, 0 (control), 25, 50, and 100 mg MeHg/kg diet) for 8 weeks to determine and compare the effects on growth performance and mercury (Hg) tissue burden in the two sturgeon species. Mortality, growth performance as measured by percent body weight increase per day, hepatosomatic index, proximate composition of whole body, and Hg burden in the whole body, gill, heart, liver, kidney, and white muscle were determined to assess the adverse growth effects and bioaccumulation of dietary MeHg in sturgeon. Significantly higher mortality and lower growth rate (p < 0.05) were noted in green and white sturgeon fed the MeHg diets compared to the controls. Green sturgeon fed the MeHg diets exhibited earlier and more severe adverse effects compared to white sturgeon. Mercury accumulated in all tissues in a dose-dependent manner regardless of species, and the highest Hg concentrations were found in the kidneys of both species. Dietary MeHg had no significant effect (p > 0.05) on the whole body proximate compositions of either sturgeon species. In conclusion, green sturgeon was more susceptible to dietary MeHg toxicity than white sturgeon in our 8-week growth experiment based on the higher mortality and lower growth rate and body energy contents.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li><li>Italie</li><li>États-Unis</li></country><region><li>Californie</li></region></list><tree><country name="États-Unis"><region name="Californie"><name sortKey="Lee, Jang Won" sort="Lee, Jang Won" uniqKey="Lee J" first="Jang-Won" last="Lee">Jang-Won Lee</name></region><name sortKey="De Riu, Nicola" sort="De Riu, Nicola" uniqKey="De Riu N" first="Nicola" last="De Riu">Nicola De Riu</name><name sortKey="Hung, Silas S O" sort="Hung, Silas S O" uniqKey="Hung S" first="Silas S. O." last="Hung">Silas S. O. Hung</name><name sortKey="Lee, Seunghyung" sort="Lee, Seunghyung" uniqKey="Lee S" first="Seunghyung" last="Lee">Seunghyung Lee</name></country><country name="Italie"><noRegion><name sortKey="De Riu, Nicola" sort="De Riu, Nicola" uniqKey="De Riu N" first="Nicola" last="De Riu">Nicola De Riu</name></noRegion><name sortKey="Moniello, Giuseppe" sort="Moniello, Giuseppe" uniqKey="Moniello G" first="Giuseppe" last="Moniello">Giuseppe Moniello</name></country><country name="Corée du Sud"><noRegion><name sortKey="Bai, Sungchul C" sort="Bai, Sungchul C" uniqKey="Bai S" first="Sungchul C." last="Bai">Sungchul C. Bai</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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