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Article: Risk to breeding success of Ardeids by contaminants in Hong Kong: Evidence from trace metals in feathers

TitleRisk to breeding success of Ardeids by contaminants in Hong Kong: Evidence from trace metals in feathers
Authors
KeywordsBirds
Breeding success
Feathers
Mercury
Risk assessment
Trace metals
Issue Date2002
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0963-9292
Citation
Ecotoxicology, 2002, v. 11 n. 1, p. 49-59 How to Cite?
AbstractThe feathers of two Ardeid species, the Little Egret (Egretta garzetta) and the Black-crowned Night Heron (Nycticorax nycticorax) were collected from six egretries and two egretries respectively, located in different areas in the New Territories of Hong Kong, including the Mai Po Marshes (within a Ramsar site). These feathers were digested and concentrations (μg/g dry weight) of copper (4.6-19.4), iron (8.1-641.3), manganese (0.4-19.4), zinc (51.3-183.5), lead (0.1-5.1), cadmium (0.01-0.15), chromium (0.06-1.7) and mercury (0.0-7.1) were determined by ICP-AES, ICP-MS and CVAAS. The levels of manganese, mercury and lead found were equal to or less than the concentrations found in previous investigations, reflecting a slight downward trend most apparent with lead. As a general rule, the levels of lead and mercury were higher in the egretries close to the polluted Deep Bay. A probabilistic risk assessment of the possible adverse effects on the breeding success of the Little Egret was carried out with respect to mercury, lead and cadmium. It was concluded that mercury (0.5-7.1 μg/g dry weight feathers) probably has had adverse effects at the Au Tau egretry of the Little Egrets, but there was no evidence of adverse effects at other egretries. The probabilistic analysis also indicated a low likelihood of adverse effects of mercury on the breeding of the Black-crowned Night Herons at A Chau (0.3-1.2 μg/g) and Mai Po Village (0.0-1.4 μg/g). The evidence for the effects of lead and cadmium was limited but suggested there may possibly be adverse effects with lead but not cadmium.
Persistent Identifierhttp://hdl.handle.net/10722/92708
ISSN
2015 Impact Factor: 2.329
2015 SCImago Journal Rankings: 1.108
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorConnell, DWen_HK
dc.contributor.authorWong, BSFen_HK
dc.contributor.authorLam, PKSen_HK
dc.contributor.authorPoon, KFen_HK
dc.contributor.authorLam, MHWen_HK
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorRichardson, BJen_HK
dc.contributor.authorYen, YFen_HK
dc.date.accessioned2010-09-17T10:54:50Z-
dc.date.available2010-09-17T10:54:50Z-
dc.date.issued2002en_HK
dc.identifier.citationEcotoxicology, 2002, v. 11 n. 1, p. 49-59en_HK
dc.identifier.issn0963-9292en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92708-
dc.description.abstractThe feathers of two Ardeid species, the Little Egret (Egretta garzetta) and the Black-crowned Night Heron (Nycticorax nycticorax) were collected from six egretries and two egretries respectively, located in different areas in the New Territories of Hong Kong, including the Mai Po Marshes (within a Ramsar site). These feathers were digested and concentrations (μg/g dry weight) of copper (4.6-19.4), iron (8.1-641.3), manganese (0.4-19.4), zinc (51.3-183.5), lead (0.1-5.1), cadmium (0.01-0.15), chromium (0.06-1.7) and mercury (0.0-7.1) were determined by ICP-AES, ICP-MS and CVAAS. The levels of manganese, mercury and lead found were equal to or less than the concentrations found in previous investigations, reflecting a slight downward trend most apparent with lead. As a general rule, the levels of lead and mercury were higher in the egretries close to the polluted Deep Bay. A probabilistic risk assessment of the possible adverse effects on the breeding success of the Little Egret was carried out with respect to mercury, lead and cadmium. It was concluded that mercury (0.5-7.1 μg/g dry weight feathers) probably has had adverse effects at the Au Tau egretry of the Little Egrets, but there was no evidence of adverse effects at other egretries. The probabilistic analysis also indicated a low likelihood of adverse effects of mercury on the breeding of the Black-crowned Night Herons at A Chau (0.3-1.2 μg/g) and Mai Po Village (0.0-1.4 μg/g). The evidence for the effects of lead and cadmium was limited but suggested there may possibly be adverse effects with lead but not cadmium.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0963-9292en_HK
dc.relation.ispartofEcotoxicologyen_HK
dc.subjectBirdsen_HK
dc.subjectBreeding successen_HK
dc.subjectFeathersen_HK
dc.subjectMercuryen_HK
dc.subjectRisk assessmenten_HK
dc.subjectTrace metalsen_HK
dc.titleRisk to breeding success of Ardeids by contaminants in Hong Kong: Evidence from trace metals in feathersen_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.doi10.1023/A:1013745113901en_HK
dc.identifier.pmid11898800-
dc.identifier.scopuseid_2-s2.0-0036171824en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036171824&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue1en_HK
dc.identifier.spage49en_HK
dc.identifier.epage59en_HK
dc.identifier.isiWOS:000173269700008-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridConnell, DW=7101771209en_HK
dc.identifier.scopusauthoridWong, BSF=7402021987en_HK
dc.identifier.scopusauthoridLam, PKS=7202365776en_HK
dc.identifier.scopusauthoridPoon, KF=7006268733en_HK
dc.identifier.scopusauthoridLam, MHW=7202630175en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridRichardson, BJ=7202395817en_HK
dc.identifier.scopusauthoridYen, YF=7101757824en_HK

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