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Article: A phototaxis inhibition assay using barnacle larvae

TitleA phototaxis inhibition assay using barnacle larvae
Authors
KeywordsBarnacle
Cadmium
Larvae
Phenol
Phototactic Response
Phototaxis
Screening Test
Issue Date1997
Citation
Environmental Toxicology And Water Quality, 1997, v. 12 n. 3, p. 231-236 How to Cite?
AbstractThe effects of sublethal concentrations of phenol and cadmium on the phototactic responses of the stage II nauplii of the barnacle Balanus amphitrite were investigated. Increased toxicant concentrations caused a reduction in phototactic responses. Balanus amphitrite nauplii exposed to nominal phenol concentrations of 100 ppm and higher for 1-12 h failed to exhibit phototactic responses, while longer exposure times of 24 and 48 h reduced the lowest observable effect concentration (LOECs) to 80 and 60 ppm, respectively. For cadmium, the LOECs, based on nominal concentrations, for B. amphitrite following 1, 6, 12, 24, and 48 h exposures were 20, 4.5, 4.0, 1, and 0.75 ppm, respectively. The LOECs can be significantly reduced by increasing the duration of exposure to the toxicants. A good relationship exists between the phototactic response and toxicant concentration as well as exposure time. Results of this study indicate that the toxicant-induced reduction in phototactic responses of barnacle larvae can be used in a sensitive, rapid screening test for ecotoxicological assessments.
Persistent Identifierhttp://hdl.handle.net/10722/178598
ISSN
1998 Impact Factor: 0.488
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu S, RSen_US
dc.contributor.authorLam, PKSen_US
dc.contributor.authorZhou, BSen_US
dc.date.accessioned2012-12-19T09:48:35Z-
dc.date.available2012-12-19T09:48:35Z-
dc.date.issued1997en_US
dc.identifier.citationEnvironmental Toxicology And Water Quality, 1997, v. 12 n. 3, p. 231-236en_US
dc.identifier.issn1053-4725en_US
dc.identifier.urihttp://hdl.handle.net/10722/178598-
dc.description.abstractThe effects of sublethal concentrations of phenol and cadmium on the phototactic responses of the stage II nauplii of the barnacle Balanus amphitrite were investigated. Increased toxicant concentrations caused a reduction in phototactic responses. Balanus amphitrite nauplii exposed to nominal phenol concentrations of 100 ppm and higher for 1-12 h failed to exhibit phototactic responses, while longer exposure times of 24 and 48 h reduced the lowest observable effect concentration (LOECs) to 80 and 60 ppm, respectively. For cadmium, the LOECs, based on nominal concentrations, for B. amphitrite following 1, 6, 12, 24, and 48 h exposures were 20, 4.5, 4.0, 1, and 0.75 ppm, respectively. The LOECs can be significantly reduced by increasing the duration of exposure to the toxicants. A good relationship exists between the phototactic response and toxicant concentration as well as exposure time. Results of this study indicate that the toxicant-induced reduction in phototactic responses of barnacle larvae can be used in a sensitive, rapid screening test for ecotoxicological assessments.en_US
dc.languageengen_US
dc.relation.ispartofEnvironmental Toxicology and Water Qualityen_US
dc.subjectBarnacleen_US
dc.subjectCadmiumen_US
dc.subjectLarvaeen_US
dc.subjectPhenolen_US
dc.subjectPhototactic Responseen_US
dc.subjectPhototaxisen_US
dc.subjectScreening Testen_US
dc.titleA phototaxis inhibition assay using barnacle larvaeen_US
dc.typeArticleen_US
dc.identifier.emailWu S, RS: rudolfwu@hku.hken_US
dc.identifier.authorityWu S, RS=rp01398en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/(SICI)1098-2256(1997)12:3<231::AID-TOX5>3.0.CO;2-9en_US
dc.identifier.scopuseid_2-s2.0-0030751071en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030751071&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume12en_US
dc.identifier.issue3en_US
dc.identifier.spage231en_US
dc.identifier.epage236en_US
dc.identifier.isiWOS:A1997XM62000005-
dc.identifier.scopusauthoridWu S, RS=7402945079en_US
dc.identifier.scopusauthoridLam, PKS=7202365776en_US
dc.identifier.scopusauthoridZhou, BS=7401906781en_US

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