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dc.contributor.authorWood, Susanna A
dc.contributor.authorDietrich, Daniel R
dc.contributor.authorCary, S Craig
dc.contributor.authorHamilton, David P
dc.date.accessioned2017-05-18T00:02:30Z
dc.date.available2017-05-18T00:02:30Z
dc.date.issued2012
dc.identifier.issn2044-2041
dc.identifier.doi10.5268/IW-2.1.424
dc.identifier.urihttp://hdl.handle.net/10072/337263
dc.description.abstractAn experimental protocol using mesocosms was established to study the effect of Microcystis sp. cell abundance on microcystin production. The mesocosms (55 L) were set up in a shallow eutrophic lake and received either no (control), low (to simulate a moderate surface accumulation), or high (to simulate a dense surface scum) concentrations of Microcystis sp. cells collected from the lake water adjacent to the mesocosms. In the low- and high-cell addition mesocosms (2 replicates of each), the initial addition of Microcystis sp. cells doubled the starting cell abundance from 500 000 to 1 000 000 cells mL-1, but there was no detectable effect on microcystin quotas. Two further cell additions were made to the high-cell addition mesocosms after 60 and 120 min, increasing densities to 2 900 000 and 7 000 000 cells mL-1, respectively. Both additions resulted in marked increases in microcystin quotas from 0.1 pg cell-1 to 0.60 and 1.38 pg cell-1, respectively, over the 240 min period. Extracellular microcystins accounted for <12% of the total microcystin load throughout the whole experiment. The results of this study indicate a relationship between Microcystis cell abundance and/or mutually correlated environmental parameters and microcystin synthesis.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherFreshwater Biological Association
dc.relation.ispartofpagefrom17
dc.relation.ispartofpageto22
dc.relation.ispartofissue1
dc.relation.ispartofjournalInland Waters
dc.relation.ispartofvolume2
dc.subject.fieldofresearchPhysical geography and environmental geoscience
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEcology not elsewhere classified
dc.subject.fieldofresearchcode3709
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode310399
dc.titleIncreasing Microcystis cell density enhances microcystin synthesis: A mesocosm study
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2012 International Society of Limnology. This is an electronic version of an article published in Inland Waters, Vol 2, No 1, Pages: 17-22, DOI: 10.5268/IW-2.1.424. Inland Waters is available online at: www.fba.org.uk/journals with the open URL of your article.
gro.hasfulltextFull Text
gro.griffith.authorHamilton, David P.


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