Toxic effects of PCB126 and TCDD on shortnose sturgeon and Atlantic sturgeon.
Identifieur interne : 000423 ( Main/Exploration ); précédent : 000422; suivant : 000424Toxic effects of PCB126 and TCDD on shortnose sturgeon and Atlantic sturgeon.
Auteurs : R Christopher Chambers [États-Unis] ; Dawn D. Davis ; Ehren A. Habeck ; Nirmal K. Roy ; Isaac WirginSource :
- Environmental toxicology and chemistry [ 1552-8618 ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical , toxicity : Polychlorinated Biphenyls, Polychlorinated Dibenzodioxins, Water Pollutants, Chemical.
- chemistry : Rivers.
- embryology : Fishes.
- growth & development : Fishes, Larva.
- Animals, Environmental Monitoring, Toxicity Tests.
Abstract
Exposure to chemical contaminants is often invoked to explain recruitment failures to populations of sturgeon worldwide, but there is little empirical evidence to support the idea that young sturgeon are sensitive at environmentally relevant concentrations. The authors used shortnose sturgeon (Acipenser brevirostum) and Atlantic sturgeon (Acipenser oxyrinchus) as models to investigate the sensitivities of sturgeon to early-life-stage toxicities from embryonic exposures to graded doses of polychlorinated biphenyl 126 (PCB126) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Survival to hatching of shortnose sturgeon decreased with increasing dose, although the duration of the embryonic period was not significantly altered by exposure in either species. Morphometric features of larvae of both species were affected by dose, including shortening of the body, reduction in head size, reduction in quantity of yolk reserves, and reduction in eye size. Eye development in both species was delayed with increasing dose for both chemicals. The persistence of larvae in a food-free environment decreased inversely with dose in both species, with sharp declines occurring at PCB126 and TCDD doses of ≥1 ppb and ≥0.1 ppb, respectively. Dose-responsive early-life-stage toxicities reported here are among the more sensitive found in fish and occurred at burdens similar to those found in situ in a sympatric bottom-dwelling bony fish in the Hudson River Estuary. The present study is among the first demonstrating the sensitivity of any sturgeon to the hallmark early-life-stage toxicities induced by aryl hydrocarbon receptor agonists.
DOI: 10.1002/etc.1953
PubMed: 22825886
Affiliations:
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Le document en format XML
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Davis</name></author><author><name sortKey="Habeck, Ehren A" sort="Habeck, Ehren A" uniqKey="Habeck E" first="Ehren A" last="Habeck">Ehren A. Habeck</name></author><author><name sortKey="Roy, Nirmal K" sort="Roy, Nirmal K" uniqKey="Roy N" first="Nirmal K" last="Roy">Nirmal K. Roy</name></author><author><name sortKey="Wirgin, Isaac" sort="Wirgin, Isaac" uniqKey="Wirgin I" first="Isaac" last="Wirgin">Isaac Wirgin</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22825886</idno><idno type="pmid">22825886</idno><idno type="doi">10.1002/etc.1953</idno><idno type="wicri:Area/PubMed/Corpus">000296</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000296</idno><idno type="wicri:Area/PubMed/Curation">000296</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000296</idno><idno type="wicri:Area/PubMed/Checkpoint">000296</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000296</idno><idno type="wicri:Area/Ncbi/Merge">000438</idno><idno type="wicri:Area/Ncbi/Curation">000438</idno><idno type="wicri:Area/Ncbi/Checkpoint">000438</idno><idno type="wicri:Area/Main/Merge">000429</idno><idno type="wicri:Area/Main/Curation">000423</idno><idno type="wicri:Area/Main/Exploration">000423</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Toxic effects of PCB126 and TCDD on shortnose sturgeon and Atlantic sturgeon.</title><author><name sortKey="Chambers, R Christopher" sort="Chambers, R Christopher" uniqKey="Chambers R" first="R Christopher" last="Chambers">R Christopher Chambers</name><affiliation wicri:level="2"><nlm:affiliation>Howard Marine Sciences Laboratory, Northeast Fisheries Science Center, NOAA Fisheries Service, Highlands, New Jersey, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Howard Marine Sciences Laboratory, Northeast Fisheries Science Center, NOAA Fisheries Service, Highlands, New Jersey</wicri:regionArea><placeName><region type="state">New Jersey</region></placeName></affiliation></author><author><name sortKey="Davis, Dawn D" sort="Davis, Dawn D" uniqKey="Davis D" first="Dawn D" last="Davis">Dawn D. Davis</name></author><author><name sortKey="Habeck, Ehren A" sort="Habeck, Ehren A" uniqKey="Habeck E" first="Ehren A" last="Habeck">Ehren A. Habeck</name></author><author><name sortKey="Roy, Nirmal K" sort="Roy, Nirmal K" uniqKey="Roy N" first="Nirmal K" last="Roy">Nirmal K. Roy</name></author><author><name sortKey="Wirgin, Isaac" sort="Wirgin, Isaac" uniqKey="Wirgin I" first="Isaac" last="Wirgin">Isaac Wirgin</name></author></analytic><series><title level="j">Environmental toxicology and chemistry</title><idno type="eISSN">1552-8618</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Environmental Monitoring</term><term>Fishes (embryology)</term><term>Fishes (growth & development)</term><term>Larva (growth & development)</term><term>Polychlorinated Biphenyls (toxicity)</term><term>Polychlorinated Dibenzodioxins (toxicity)</term><term>Rivers (chemistry)</term><term>Toxicity Tests</term><term>Water Pollutants, Chemical (toxicity)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="toxicity" xml:lang="en"><term>Polychlorinated Biphenyls</term><term>Polychlorinated Dibenzodioxins</term><term>Water Pollutants, Chemical</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Rivers</term></keywords><keywords scheme="MESH" qualifier="embryology" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Fishes</term><term>Larva</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Environmental Monitoring</term><term>Toxicity Tests</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Exposure to chemical contaminants is often invoked to explain recruitment failures to populations of sturgeon worldwide, but there is little empirical evidence to support the idea that young sturgeon are sensitive at environmentally relevant concentrations. The authors used shortnose sturgeon (Acipenser brevirostum) and Atlantic sturgeon (Acipenser oxyrinchus) as models to investigate the sensitivities of sturgeon to early-life-stage toxicities from embryonic exposures to graded doses of polychlorinated biphenyl 126 (PCB126) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Survival to hatching of shortnose sturgeon decreased with increasing dose, although the duration of the embryonic period was not significantly altered by exposure in either species. Morphometric features of larvae of both species were affected by dose, including shortening of the body, reduction in head size, reduction in quantity of yolk reserves, and reduction in eye size. Eye development in both species was delayed with increasing dose for both chemicals. The persistence of larvae in a food-free environment decreased inversely with dose in both species, with sharp declines occurring at PCB126 and TCDD doses of ≥1 ppb and ≥0.1 ppb, respectively. Dose-responsive early-life-stage toxicities reported here are among the more sensitive found in fish and occurred at burdens similar to those found in situ in a sympatric bottom-dwelling bony fish in the Hudson River Estuary. The present study is among the first demonstrating the sensitivity of any sturgeon to the hallmark early-life-stage toxicities induced by aryl hydrocarbon receptor agonists.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>New Jersey</li></region></list><tree><noCountry><name sortKey="Davis, Dawn D" sort="Davis, Dawn D" uniqKey="Davis D" first="Dawn D" last="Davis">Dawn D. Davis</name><name sortKey="Habeck, Ehren A" sort="Habeck, Ehren A" uniqKey="Habeck E" first="Ehren A" last="Habeck">Ehren A. Habeck</name><name sortKey="Roy, Nirmal K" sort="Roy, Nirmal K" uniqKey="Roy N" first="Nirmal K" last="Roy">Nirmal K. Roy</name><name sortKey="Wirgin, Isaac" sort="Wirgin, Isaac" uniqKey="Wirgin I" first="Isaac" last="Wirgin">Isaac Wirgin</name></noCountry><country name="États-Unis"><region name="New Jersey"><name sortKey="Chambers, R Christopher" sort="Chambers, R Christopher" uniqKey="Chambers R" first="R Christopher" last="Chambers">R Christopher Chambers</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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