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Article: Larval growth response of the Portuguese oyster (Crassostrea angulata) to multiple climate change stressors

TitleLarval growth response of the Portuguese oyster (Crassostrea angulata) to multiple climate change stressors
Authors
KeywordsClimate Change
Crassostrea Angulata
Larval Calcification
Ocean Acidification
Portuguese Oyster
Issue Date2012
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/aquaculture
Citation
Aquaculture, 2012, v. 370-371, p. 90-95 How to Cite?
AbstractRising anthropogenic carbon dioxide (CO 2) dissolving into coastal waters is decreasing the pH and carbonate ion concentration, thereby lowering the saturation state of calcium carbonate (CaCO 3) minerals through a process named ocean acidification (OA). The unprecedented threats posed by such low pH on calcifying larvae of several edible oyster species have not yet been fully explored. Effects of low pH (7.9, 7.6, 7.4) on the early growth phase of Portuguese oyster (Crassostrea angulata) veliger larvae was examined at ambient salinity (34ppt) and the low-salinity (27ppt) treatment. Additionally, the combined effect of pH (8.1, 7.6), salinity (24 and 34ppt) and temperature (24°C and 30°C) was examined using factorial experimental design. Surprisingly, the early growth phase from hatching to 5-day-old veliger stage showed high tolerance to pH 7.9 and pH 7.6 at both 34ppt and 27ppt. Larval shell area was significantly smaller at pH 7.4 only in low-salinity. In the 3-factor experiment, shell area was affected by salinity and the interaction between salinity and temperature but not by other combinations. Larvae produced the largest shell at the elevated temperature in low-salinity, regardless of pH. Thus the growth of the Portuguese oyster larvae appears to be robust to near-future pH level (>7.6) when combined with projected elevated temperature and low-salinity in the coastal aquaculture zones of South China Sea. © 2012.
Persistent Identifierhttp://hdl.handle.net/10722/179334
ISSN
2015 Impact Factor: 1.893
2015 SCImago Journal Rankings: 1.110
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorThiyagarajan, Ven_US
dc.contributor.authorKo, GWKen_US
dc.date.accessioned2012-12-19T09:54:17Z-
dc.date.available2012-12-19T09:54:17Z-
dc.date.issued2012en_US
dc.identifier.citationAquaculture, 2012, v. 370-371, p. 90-95en_US
dc.identifier.issn0044-8486en_US
dc.identifier.urihttp://hdl.handle.net/10722/179334-
dc.description.abstractRising anthropogenic carbon dioxide (CO 2) dissolving into coastal waters is decreasing the pH and carbonate ion concentration, thereby lowering the saturation state of calcium carbonate (CaCO 3) minerals through a process named ocean acidification (OA). The unprecedented threats posed by such low pH on calcifying larvae of several edible oyster species have not yet been fully explored. Effects of low pH (7.9, 7.6, 7.4) on the early growth phase of Portuguese oyster (Crassostrea angulata) veliger larvae was examined at ambient salinity (34ppt) and the low-salinity (27ppt) treatment. Additionally, the combined effect of pH (8.1, 7.6), salinity (24 and 34ppt) and temperature (24°C and 30°C) was examined using factorial experimental design. Surprisingly, the early growth phase from hatching to 5-day-old veliger stage showed high tolerance to pH 7.9 and pH 7.6 at both 34ppt and 27ppt. Larval shell area was significantly smaller at pH 7.4 only in low-salinity. In the 3-factor experiment, shell area was affected by salinity and the interaction between salinity and temperature but not by other combinations. Larvae produced the largest shell at the elevated temperature in low-salinity, regardless of pH. Thus the growth of the Portuguese oyster larvae appears to be robust to near-future pH level (>7.6) when combined with projected elevated temperature and low-salinity in the coastal aquaculture zones of South China Sea. © 2012.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/aquacultureen_US
dc.relation.ispartofAquacultureen_US
dc.subjectClimate Changeen_US
dc.subjectCrassostrea Angulataen_US
dc.subjectLarval Calcificationen_US
dc.subjectOcean Acidificationen_US
dc.subjectPortuguese Oysteren_US
dc.titleLarval growth response of the Portuguese oyster (Crassostrea angulata) to multiple climate change stressorsen_US
dc.typeArticleen_US
dc.identifier.emailThiyagarajan, V: rajan@hkucc.hku.hken_US
dc.identifier.authorityThiyagarajan, V=rp00796en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.aquaculture.2012.09.025en_US
dc.identifier.scopuseid_2-s2.0-84868243954en_US
dc.identifier.hkuros223091-
dc.identifier.volume370en_US
dc.identifier.spage90en_US
dc.identifier.epage95en_US
dc.identifier.isiWOS:000311215700013-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridThiyagarajan, V=6602476830en_US
dc.identifier.scopusauthoridKo, GWK=55443731400en_US
dc.identifier.citeulike11808186-

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