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Article: UV-B damages eyes of barnacle larvae and impairs their photoresponses and settlement success

TitleUV-B damages eyes of barnacle larvae and impairs their photoresponses and settlement success
Authors
KeywordsSpecies Index: Animalia
Cypris
Mollusca
Thoracica
Issue Date2003
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/est
Citation
Environmental Science And Technology, 2003, v. 37 n. 6, p. 1089-1092 How to Cite?
AbstractThe impact of enhanced UV-B radiation on marine ecosystems due to ozone depletion has caused growing global concern. Barnacle larvae have evolved complex photoreceptors and elaborate phototactic behaviors, which enable them to identify suitable habitats for feeding and settlement. For the first time, we demonstrate that environmentally realistic levels of UV-B radiation can induce ocular damage in barnacle larvae, thereby impairing the phototactic behavior of naupliar larvae and reducing settlement success of cypris larvae. Significant disruptions of rhabdomeres (the photosensitive structures in which phototransduction takes place) occurred in the retinular cells of naupliar eyes when naupliar larvae were exposed to a UV-B dose of 7.2 kJ m -2, and impairment was dependent upon dose rather than irradiance. Our experimental data also showed that phototaxis of nauplii was ca. 4 times more sensitive to UV-B than settlement of cyprids. Since barnacles play an important role in the function and structure of coastal systems worldwide, any impairment of phototactic and settlement behavior of the larvae would pose a significant threat to the sustainability of this ecologically important species. The fact that enhanced UV-B radiation can induce ocular damage and subsequent phototactic impairment in barnacle larvae suggests that UV-B may also cause similar damage to other zooplankton species.
Persistent Identifierhttp://hdl.handle.net/10722/92757
ISSN
2015 Impact Factor: 5.393
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChiang, WLen_HK
dc.contributor.authorAu, DWTen_HK
dc.contributor.authorYu, PKNen_HK
dc.contributor.authorWu, RSSen_HK
dc.date.accessioned2010-09-17T10:56:16Z-
dc.date.available2010-09-17T10:56:16Z-
dc.date.issued2003en_HK
dc.identifier.citationEnvironmental Science And Technology, 2003, v. 37 n. 6, p. 1089-1092en_HK
dc.identifier.issn0013-936Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/92757-
dc.description.abstractThe impact of enhanced UV-B radiation on marine ecosystems due to ozone depletion has caused growing global concern. Barnacle larvae have evolved complex photoreceptors and elaborate phototactic behaviors, which enable them to identify suitable habitats for feeding and settlement. For the first time, we demonstrate that environmentally realistic levels of UV-B radiation can induce ocular damage in barnacle larvae, thereby impairing the phototactic behavior of naupliar larvae and reducing settlement success of cypris larvae. Significant disruptions of rhabdomeres (the photosensitive structures in which phototransduction takes place) occurred in the retinular cells of naupliar eyes when naupliar larvae were exposed to a UV-B dose of 7.2 kJ m -2, and impairment was dependent upon dose rather than irradiance. Our experimental data also showed that phototaxis of nauplii was ca. 4 times more sensitive to UV-B than settlement of cyprids. Since barnacles play an important role in the function and structure of coastal systems worldwide, any impairment of phototactic and settlement behavior of the larvae would pose a significant threat to the sustainability of this ecologically important species. The fact that enhanced UV-B radiation can induce ocular damage and subsequent phototactic impairment in barnacle larvae suggests that UV-B may also cause similar damage to other zooplankton species.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/esten_HK
dc.relation.ispartofEnvironmental Science and Technologyen_HK
dc.subjectSpecies Index: Animaliaen_HK
dc.subjectCyprisen_HK
dc.subjectMolluscaen_HK
dc.subjectThoracicaen_HK
dc.titleUV-B damages eyes of barnacle larvae and impairs their photoresponses and settlement successen_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.doi10.1021/es0261168en_HK
dc.identifier.pmid12680659-
dc.identifier.scopuseid_2-s2.0-0037445167en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037445167&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume37en_HK
dc.identifier.issue6en_HK
dc.identifier.spage1089en_HK
dc.identifier.epage1092en_HK
dc.identifier.isiWOS:000181629700006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChiang, WL=14036772300en_HK
dc.identifier.scopusauthoridAu, DWT=7004909228en_HK
dc.identifier.scopusauthoridYu, PKN=7403600035en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK

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