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Article: Reproductive impairment of sea urchins upon chronic exposure to cadmium. Part I: Effects on gamete quality
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TitleReproductive impairment of sea urchins upon chronic exposure to cadmium. Part I: Effects on gamete quality
 
AuthorsAu, DWT1
Lee, CY1
Chan, KL1
Wu, RSS1
 
KeywordsCASA
Fertilization success
Heavy metals
Invertebrate reproduction
Sperm motility
 
Issue Date2001
 
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envpol
 
CitationEnvironmental Pollution, 2001, v. 111 n. 1, p. 1-9 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0269-7491(00)00035-X
 
AbstractSuccessful reproduction is a determining factor for species survival. Pollution may impair reproductive success of adults through effects on gamete quality. Reproductive impairment of the sea urchin Anthocidaris crassispina upon chronic (4 weeks) exposure to 0.01 and 0.1 mg l -1 Cd 2+ was investigated. Criteria used for assessing gamete quality included sperm motility, egg morphology, fertilization rate and dynamics of first cleavage. A dose-response relationship was found between Cd 2+ levels and changes in sperm motility, and percentage fertilization. Sperm motility, measured by computer-assisted sperm analysis, indicated that percent motile sperm, velocities, and percent sperm with normal trajectory were significantly affected by chronic exposure to ≥0.1 mg l -1 Cd 2+. A decline in sperm motility was also accompanied by a decrease in fertilization success of sea urchin sperm. Width/height ratio of sea urchin eggs was not affected by cadmium, but larger egg sizes were found when sea urchins were exposed to 0.1 mg l -1 Cd 2+. Male sea urchins exposed to Cd 2+ produced poorer quality sperm, as indicated by a lower percent fertilization and lower cleavage rate, implying that male sea urchins were more sensitive than females to chronic Cd 2+ exposure. Results of the present study provide an explanation of reproductive impairment in marine invertebrates upon chronic exposure to Cd 2+. Copyright (C) 2000 Elsevier Science Ltd.
 
ISSN0269-7491
2012 Impact Factor: 3.73
2012 SCImago Journal Rankings: 1.763
 
DOIhttp://dx.doi.org/10.1016/S0269-7491(00)00035-X
 
ISI Accession Number IDWOS:000089336500001
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorAu, DWT
 
dc.contributor.authorLee, CY
 
dc.contributor.authorChan, KL
 
dc.contributor.authorWu, RSS
 
dc.date.accessioned2010-09-17T10:56:19Z
 
dc.date.available2010-09-17T10:56:19Z
 
dc.date.issued2001
 
dc.description.abstractSuccessful reproduction is a determining factor for species survival. Pollution may impair reproductive success of adults through effects on gamete quality. Reproductive impairment of the sea urchin Anthocidaris crassispina upon chronic (4 weeks) exposure to 0.01 and 0.1 mg l -1 Cd 2+ was investigated. Criteria used for assessing gamete quality included sperm motility, egg morphology, fertilization rate and dynamics of first cleavage. A dose-response relationship was found between Cd 2+ levels and changes in sperm motility, and percentage fertilization. Sperm motility, measured by computer-assisted sperm analysis, indicated that percent motile sperm, velocities, and percent sperm with normal trajectory were significantly affected by chronic exposure to ≥0.1 mg l -1 Cd 2+. A decline in sperm motility was also accompanied by a decrease in fertilization success of sea urchin sperm. Width/height ratio of sea urchin eggs was not affected by cadmium, but larger egg sizes were found when sea urchins were exposed to 0.1 mg l -1 Cd 2+. Male sea urchins exposed to Cd 2+ produced poorer quality sperm, as indicated by a lower percent fertilization and lower cleavage rate, implying that male sea urchins were more sensitive than females to chronic Cd 2+ exposure. Results of the present study provide an explanation of reproductive impairment in marine invertebrates upon chronic exposure to Cd 2+. Copyright (C) 2000 Elsevier Science Ltd.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationEnvironmental Pollution, 2001, v. 111 n. 1, p. 1-9 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0269-7491(00)00035-X
 
dc.identifier.doihttp://dx.doi.org/10.1016/S0269-7491(00)00035-X
 
dc.identifier.epage9
 
dc.identifier.isiWOS:000089336500001
 
dc.identifier.issn0269-7491
2012 Impact Factor: 3.73
2012 SCImago Journal Rankings: 1.763
 
dc.identifier.issue1
 
dc.identifier.pmid11202702
 
dc.identifier.scopuseid_2-s2.0-0343867274
 
dc.identifier.spage1
 
dc.identifier.urihttp://hdl.handle.net/10722/92759
 
dc.identifier.volume111
 
dc.languageeng
 
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/envpol
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofEnvironmental Pollution
 
dc.relation.referencesReferences in Scopus
 
dc.subjectCASA
 
dc.subjectFertilization success
 
dc.subjectHeavy metals
 
dc.subjectInvertebrate reproduction
 
dc.subjectSperm motility
 
dc.titleReproductive impairment of sea urchins upon chronic exposure to cadmium. Part I: Effects on gamete quality
 
dc.typeArticle
 
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Author Affiliations
  1. City University of Hong Kong