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Article: Effects of hypoxia on growth of the diatom Skeletonema costatum

TitleEffects of hypoxia on growth of the diatom Skeletonema costatum
Authors
KeywordsAnoxic conditions
Chlorophyll a
Diatom
Dissolved oxygen
Experimental study
Issue Date2012
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembe
Citation
Journal Of Experimental Marine Biology And Ecology, 2012, v. 420-421, p. 65-68 How to Cite?
AbstractHypoxia, defined as dissolved oxygen falls below 2.8mg O 2 L -1, affects several 100,000km 2 of marine water worldwide. Previous studies have shown that hypoxia results in aberrant behaviors of benthic fauna, collapse of fisheries, and major changes in the structure and trophodynamics of marine ecosystems. Nevertheless, it is not known whether, and if so how, hypoxia can affect the phytoplankton, which accounts for the major part of the primary productivity of marine ecosystems. The present study investigated the effects of hypoxia on the growth of the diatom Skeletonema costatum. Diatoms were cultured at three levels of oxygen (i.e. 7.0, 2.0, 0.5mg O 2 L -1) for 14days, and the biological endpoints (i.e. cell size, cell density, optical density, chlorophyll a concentration, adenylate energy charge) were measured at 0, 1, 3, 5, 7, and 14days. Our results demonstrated that all metrics and the calculated specific growth rate over the 14day experimental period were negatively affected by 0.5mg O 2 L -1. Results of this study, for the first time, provided the evidence and important insight of the impacts of hypoxia on the functions of phytoplankton in marine ecosystems. © 2012 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/165945
ISSN
2014 Impact Factor: 1.866
2014 SCImago Journal Rankings: 0.993
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, RSSen_US
dc.contributor.authorWo, KTen_US
dc.contributor.authorChiu, JMYen_US
dc.date.accessioned2012-09-20T08:25:43Z-
dc.date.available2012-09-20T08:25:43Z-
dc.date.issued2012en_US
dc.identifier.citationJournal Of Experimental Marine Biology And Ecology, 2012, v. 420-421, p. 65-68en_US
dc.identifier.issn0022-0981en_US
dc.identifier.urihttp://hdl.handle.net/10722/165945-
dc.description.abstractHypoxia, defined as dissolved oxygen falls below 2.8mg O 2 L -1, affects several 100,000km 2 of marine water worldwide. Previous studies have shown that hypoxia results in aberrant behaviors of benthic fauna, collapse of fisheries, and major changes in the structure and trophodynamics of marine ecosystems. Nevertheless, it is not known whether, and if so how, hypoxia can affect the phytoplankton, which accounts for the major part of the primary productivity of marine ecosystems. The present study investigated the effects of hypoxia on the growth of the diatom Skeletonema costatum. Diatoms were cultured at three levels of oxygen (i.e. 7.0, 2.0, 0.5mg O 2 L -1) for 14days, and the biological endpoints (i.e. cell size, cell density, optical density, chlorophyll a concentration, adenylate energy charge) were measured at 0, 1, 3, 5, 7, and 14days. Our results demonstrated that all metrics and the calculated specific growth rate over the 14day experimental period were negatively affected by 0.5mg O 2 L -1. Results of this study, for the first time, provided the evidence and important insight of the impacts of hypoxia on the functions of phytoplankton in marine ecosystems. © 2012 Elsevier B.V.-
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jembeen_US
dc.relation.ispartofJournal Of Experimental Marine Biology And Ecologyen_US
dc.subjectAnoxic conditions-
dc.subjectChlorophyll a-
dc.subjectDiatom-
dc.subjectDissolved oxygen-
dc.subjectExperimental study-
dc.titleEffects of hypoxia on growth of the diatom Skeletonema costatumen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0981&volume=420&spage=65&epage=68&date=2012&atitle=Effect+of+hypoxia+on+growth+of+the+diatom+Skeletonema+costatumen_US
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_US
dc.identifier.emailChiu, JMY: jillchiu@hku.hken_US
dc.identifier.authorityWu, SS=rp01398en_US
dc.identifier.authorityChiu, MY=rp01325en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jembe.2012.04.003-
dc.identifier.scopuseid_2-s2.0-84860329087-
dc.identifier.hkuros203329en_US
dc.identifier.volume420-421en_US
dc.identifier.spage65en_US
dc.identifier.epage68en_US
dc.identifier.isiWOS:000305260200008-
dc.publisher.placeNetherlands-
dc.identifier.citeulike10649839-

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