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Article: Effects of two oil dispersants on phototaxis and swimming behaviour of barnacle larvae

TitleEffects of two oil dispersants on phototaxis and swimming behaviour of barnacle larvae
Authors
KeywordsBarnacle larvae
Oil dispersant
Phototaxis
Swimming behaviour
Issue Date1997
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158
Citation
Hydrobiologia, 1997, v. 352 n. 1-3, p. 9-16 How to Cite?
AbstractThe effects of two oil dispersants (Vecom B-1425 GL and Norchem OSD-570) mixed with diesel oil on the survival and behaviour of the stage II nauplii of the barnacle Balanus amphitrite were investigated. The 24 and 48-hour LC50 values for Vecom B-1425 GL:diesel mixture were 514 and 48 mg 1-1 respectively, while respective values for Norchem OSD-570:diesel mixture were 505 and 71 mg 1-1. Under sublethal concentrations, increased levels of the dispersant:diesel mixtures caused a reduction in phototactic responses. Balanus amphitrite nauplii failed to exhibit phototactic responses when exposed to Vecom B-1425 GL:diesel mixtures of 400 mg 1-1 and higher for 24 hours. A longer exposure time of 48 hours further reduced the Lowest Observable Effect Concentrations (LOECs) to 60 mg 1-1. The LOECs for Norchem OSD-570:diesel mixtures under exposure periods of 24 and 48 hours were 400 and 80 mg 1-1 respectively. The curvilinear velocities (VCL) and straight-line velocities (VSL) of the stage II nauplii ranged from 0.7-1.1 and 0.2-0.4 mm s-1 respectively. Increased concentrations of dispersant:diesel mixtures caused a significant change in the curvilinear and straight-line velocities. Both oil dispersants, dispersant:diesel mixtures of 20 to 40 mg 1-1 caused significant increases in VCL, but no significant change in VSL. Dispersant:diesel mixtures of 100 mg 1-1 and higher resulted in a reduction in VSL for both dispersants. ©1997 Kluwer Academic Publishers.
Persistent Identifierhttp://hdl.handle.net/10722/92669
ISSN
2015 Impact Factor: 2.051
2015 SCImago Journal Rankings: 1.043
References

 

DC FieldValueLanguage
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorLam, PKSen_HK
dc.contributor.authorZhou, BSen_HK
dc.date.accessioned2010-09-17T10:53:39Z-
dc.date.available2010-09-17T10:53:39Z-
dc.date.issued1997en_HK
dc.identifier.citationHydrobiologia, 1997, v. 352 n. 1-3, p. 9-16en_HK
dc.identifier.issn0018-8158en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92669-
dc.description.abstractThe effects of two oil dispersants (Vecom B-1425 GL and Norchem OSD-570) mixed with diesel oil on the survival and behaviour of the stage II nauplii of the barnacle Balanus amphitrite were investigated. The 24 and 48-hour LC50 values for Vecom B-1425 GL:diesel mixture were 514 and 48 mg 1-1 respectively, while respective values for Norchem OSD-570:diesel mixture were 505 and 71 mg 1-1. Under sublethal concentrations, increased levels of the dispersant:diesel mixtures caused a reduction in phototactic responses. Balanus amphitrite nauplii failed to exhibit phototactic responses when exposed to Vecom B-1425 GL:diesel mixtures of 400 mg 1-1 and higher for 24 hours. A longer exposure time of 48 hours further reduced the Lowest Observable Effect Concentrations (LOECs) to 60 mg 1-1. The LOECs for Norchem OSD-570:diesel mixtures under exposure periods of 24 and 48 hours were 400 and 80 mg 1-1 respectively. The curvilinear velocities (VCL) and straight-line velocities (VSL) of the stage II nauplii ranged from 0.7-1.1 and 0.2-0.4 mm s-1 respectively. Increased concentrations of dispersant:diesel mixtures caused a significant change in the curvilinear and straight-line velocities. Both oil dispersants, dispersant:diesel mixtures of 20 to 40 mg 1-1 caused significant increases in VCL, but no significant change in VSL. Dispersant:diesel mixtures of 100 mg 1-1 and higher resulted in a reduction in VSL for both dispersants. ©1997 Kluwer Academic Publishers.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158en_HK
dc.relation.ispartofHydrobiologiaen_HK
dc.subjectBarnacle larvaeen_HK
dc.subjectOil dispersanten_HK
dc.subjectPhototaxisen_HK
dc.subjectSwimming behaviouren_HK
dc.titleEffects of two oil dispersants on phototaxis and swimming behaviour of barnacle larvaeen_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.scopuseid_2-s2.0-0030732531en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030732531&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume352en_HK
dc.identifier.issue1-3en_HK
dc.identifier.spage9en_HK
dc.identifier.epage16en_HK
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridLam, PKS=7202365776en_HK
dc.identifier.scopusauthoridZhou, BS=7401906781en_HK

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