File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Bioaccumulation and maternal transfer of PBDE 47 in the marine medaka (Oryzias melastigma) following dietary exposure

TitleBioaccumulation and maternal transfer of PBDE 47 in the marine medaka (Oryzias melastigma) following dietary exposure
Authors
KeywordsBioaccumulation
Flame retardants
Maternal transfer
Oryzias melastigma
PBDEs
Toxicokinetics
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/aquatox
Citation
Aquatic Toxicology, 2011, v. 103 n. 3-4, p. 199-204 How to Cite?
AbstractThe bioaccumulation and maternal transfer of 2,2',4,4'-tetrabromodiphenyl ether (PBDE 47) were investigated in the marine medaka (Oryzias melastigma) following dietary exposure, in which PBDE 47 was bioencapsulated into brine shrimp (Artemia sp.) and fed daily to male-female pairs of medaka. In the accumulation experiment, each 2-month-old (pre-breeding) medaka were provided with dietary PBDE 47 at 1.3±0.2μg/day for 21days. Growth-corrected concentrations of PBDE 47 in the medaka increased over the 21days of exposure and there were no significant differences between males and females at any of the sampling times. Final concentrations were similar for males and females after 21days (230±30 and 250±30μgg -1 wet weight, respectively), accounting for 84-100% of the PBDE 47 provided in the diet. In the maternal transfer experiment, 3-month-old (breeding) medaka were provided with dietary PBDE 47 at 1.2±0.2μg/day for 18days, and reached body concentrations of 76±3 (males) and 61±6 (females)μgg -1 wet weight. Female growth-corrected PBDE 47 concentrations were significantly lower than males by day 12 (P<0.05), and egg PBDE 47 concentrations were up to 25ng/egg by day 18. Our results showed that maternal transfer is an important offloading mechanism for female fish. The fact that lipid normalized egg:female PBDE ratios did not significantly deviate from 1 further indicated that the maternal transfer of PBDE 47 is associated with lipid mobilization during egg production. © 2011 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/140880
ISSN
2014 Impact Factor: 3.451
ISI Accession Number ID
Funding AgencyGrant Number
University Grants Committee of the Hong Kong Special Administrative Region, ChinaAoE/P-04/04
Funding Information:

The work described in this paper was fully supported by a grant from the University Grants Committee of the Hong Kong Special Administrative Region, China (AoE/P-04/04). Thanks are due to Jerry Wong for technical assistance.

References

 

DC FieldValueLanguage
dc.contributor.authorvan de Merwe, JPen_HK
dc.contributor.authorChan, AKYen_HK
dc.contributor.authorLei, ENYen_HK
dc.contributor.authorYau, MSen_HK
dc.contributor.authorLam, MHWen_HK
dc.contributor.authorWu, RSSen_HK
dc.date.accessioned2011-09-23T06:20:51Z-
dc.date.available2011-09-23T06:20:51Z-
dc.date.issued2011en_HK
dc.identifier.citationAquatic Toxicology, 2011, v. 103 n. 3-4, p. 199-204en_HK
dc.identifier.issn0166-445Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/140880-
dc.description.abstractThe bioaccumulation and maternal transfer of 2,2',4,4'-tetrabromodiphenyl ether (PBDE 47) were investigated in the marine medaka (Oryzias melastigma) following dietary exposure, in which PBDE 47 was bioencapsulated into brine shrimp (Artemia sp.) and fed daily to male-female pairs of medaka. In the accumulation experiment, each 2-month-old (pre-breeding) medaka were provided with dietary PBDE 47 at 1.3±0.2μg/day for 21days. Growth-corrected concentrations of PBDE 47 in the medaka increased over the 21days of exposure and there were no significant differences between males and females at any of the sampling times. Final concentrations were similar for males and females after 21days (230±30 and 250±30μgg -1 wet weight, respectively), accounting for 84-100% of the PBDE 47 provided in the diet. In the maternal transfer experiment, 3-month-old (breeding) medaka were provided with dietary PBDE 47 at 1.2±0.2μg/day for 18days, and reached body concentrations of 76±3 (males) and 61±6 (females)μgg -1 wet weight. Female growth-corrected PBDE 47 concentrations were significantly lower than males by day 12 (P<0.05), and egg PBDE 47 concentrations were up to 25ng/egg by day 18. Our results showed that maternal transfer is an important offloading mechanism for female fish. The fact that lipid normalized egg:female PBDE ratios did not significantly deviate from 1 further indicated that the maternal transfer of PBDE 47 is associated with lipid mobilization during egg production. © 2011 Elsevier B.V.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/aquatoxen_HK
dc.relation.ispartofAquatic Toxicologyen_HK
dc.subjectBioaccumulationen_HK
dc.subjectFlame retardantsen_HK
dc.subjectMaternal transferen_HK
dc.subjectOryzias melastigmaen_HK
dc.subjectPBDEsen_HK
dc.subjectToxicokineticsen_HK
dc.subject.meshEmbryo, Nonmammalian - metabolism-
dc.subject.meshEnvironmental Exposure - adverse effects-
dc.subject.meshHalogenated Diphenyl Ethers - metabolism-
dc.subject.meshOryzias - embryology - metabolism-
dc.subject.meshWater Pollutants, Chemical - metabolism-
dc.titleBioaccumulation and maternal transfer of PBDE 47 in the marine medaka (Oryzias melastigma) following dietary exposureen_HK
dc.typeArticleen_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.aquatox.2011.02.021en_HK
dc.identifier.pmid21481818en_HK
dc.identifier.scopuseid_2-s2.0-79953689936en_HK
dc.identifier.hkuros192059en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79953689936&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume103en_HK
dc.identifier.issue3-4en_HK
dc.identifier.spage199en_HK
dc.identifier.epage204en_HK
dc.identifier.eissn1879-1514-
dc.identifier.isiWOS:000291908100008-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridvan de Merwe, JP=8701906400en_HK
dc.identifier.scopusauthoridChan, AKY=24278666900en_HK
dc.identifier.scopusauthoridLei, ENY=36465365000en_HK
dc.identifier.scopusauthoridYau, MS=47961571300en_HK
dc.identifier.scopusauthoridLam, MHW=7202630175en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.citeulike8961314-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats