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Article: Copper toxicity in the marine copepod Tigropus japonicus: Low variability and high reproducibility of repeated acute and life-cycle tests

TitleCopper toxicity in the marine copepod Tigropus japonicus: Low variability and high reproducibility of repeated acute and life-cycle tests
Authors
KeywordsCoefficient of variation
Ecotoxicology
Model organism
Issue Date2008
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul
Citation
Marine Pollution Bulletin, 2008, v. 57 n. 6-12, p. 632-636 How to Cite?
AbstractThe intertidal copeopod Tigriopus japonicus, which is abundant and widely distributed along the coasts of Western Pacific, has been suggested to be a good marine ecotoxicity testing organism. In this study, a series of experiments were conducted to investigate the reproducibility and variability of copper (Cu) sensitivity of T. japonicus so as to evaluate its potential to serve as an appropriate test species. To understand the seasonal variation of Cu sensitivity, individuals of T. japonicus were collected from the field in summer and winter, and subjected to standard 96h acute (static renewal) toxicity tests. 96h-LC50 values of T. japonicus collected from the two seasons were marginally different (p=0.05), with an overall coefficient of variation (CV) of 33%. Most importantly, our results indicated that chronic Cu sensitivity of T. japonicus was highly reproducible. The CVs of intrinsic rates of increase in the population of the control and Cu treatment (10μgCul -1) groups were only 10-11% between 10 runs of a standardised complete life-cycle test. Moreover, different Cu(II) salts generally resulted in a similar 96h-LC50 value while Cu(I) chloride was consistently slightly less toxic than Cu(II) salts. Given such a high reproducibility of toxic responses, it is advocated to use T. japonicus as a routine testing organism. © 2008 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/89214
ISSN
2015 Impact Factor: 3.099
2015 SCImago Journal Rankings: 1.264
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKwok, KWHen_HK
dc.contributor.authorLeung, KMYen_HK
dc.contributor.authorBao, VWWen_HK
dc.contributor.authorLee, JSen_HK
dc.date.accessioned2010-09-06T09:53:59Z-
dc.date.available2010-09-06T09:53:59Z-
dc.date.issued2008en_HK
dc.identifier.citationMarine Pollution Bulletin, 2008, v. 57 n. 6-12, p. 632-636en_HK
dc.identifier.issn0025-326Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/89214-
dc.description.abstractThe intertidal copeopod Tigriopus japonicus, which is abundant and widely distributed along the coasts of Western Pacific, has been suggested to be a good marine ecotoxicity testing organism. In this study, a series of experiments were conducted to investigate the reproducibility and variability of copper (Cu) sensitivity of T. japonicus so as to evaluate its potential to serve as an appropriate test species. To understand the seasonal variation of Cu sensitivity, individuals of T. japonicus were collected from the field in summer and winter, and subjected to standard 96h acute (static renewal) toxicity tests. 96h-LC50 values of T. japonicus collected from the two seasons were marginally different (p=0.05), with an overall coefficient of variation (CV) of 33%. Most importantly, our results indicated that chronic Cu sensitivity of T. japonicus was highly reproducible. The CVs of intrinsic rates of increase in the population of the control and Cu treatment (10μgCul -1) groups were only 10-11% between 10 runs of a standardised complete life-cycle test. Moreover, different Cu(II) salts generally resulted in a similar 96h-LC50 value while Cu(I) chloride was consistently slightly less toxic than Cu(II) salts. Given such a high reproducibility of toxic responses, it is advocated to use T. japonicus as a routine testing organism. © 2008 Elsevier Ltd.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbulen_HK
dc.relation.ispartofMarine Pollution Bulletinen_HK
dc.subjectCoefficient of variationen_HK
dc.subjectEcotoxicologyen_HK
dc.subjectModel organismen_HK
dc.titleCopper toxicity in the marine copepod Tigropus japonicus: Low variability and high reproducibility of repeated acute and life-cycle testsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0025-326X&volume=57&spage=632&epage=636&date=2008&atitle=Copper+toxicity+in+the+marine+copepod+Tigropus+japonicus:+Low+variability+and+high+reproducibility+of+repeated+acute+and+life-cycle+testsen_HK
dc.identifier.emailLeung, KMY: kmyleung@hku.hken_HK
dc.identifier.authorityLeung, KMY=rp00733en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.marpolbul.2008.03.026en_HK
dc.identifier.pmid18474379-
dc.identifier.scopuseid_2-s2.0-52749097824en_HK
dc.identifier.hkuros145418en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-52749097824&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume57en_HK
dc.identifier.issue6-12en_HK
dc.identifier.spage632en_HK
dc.identifier.epage636en_HK
dc.identifier.isiWOS:000257816300051-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridKwok, KWH=19337480200en_HK
dc.identifier.scopusauthoridLeung, KMY=7401860738en_HK
dc.identifier.scopusauthoridBao, VWW=23666277800en_HK
dc.identifier.scopusauthoridLee, JS=35465338700en_HK

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