Articles | Volume 14, issue 11
Biogeosciences, 14, 2865–2875, 2017
https://doi.org/10.5194/bg-14-2865-2017
Biogeosciences, 14, 2865–2875, 2017
https://doi.org/10.5194/bg-14-2865-2017

Research article 15 Jun 2017

Research article | 15 Jun 2017

Cyanobacterial carbon concentrating mechanisms facilitate sustained CO2 depletion in eutrophic lakes

Ana M. Morales-Williams et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (19 Jan 2017) by David Gillikin
AR by Ana Morales-Williams on behalf of the Authors (03 Apr 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (04 Apr 2017) by David Gillikin
RR by Jolanda Verspagen (19 Apr 2017)
RR by Anonymous Referee #3 (21 Apr 2017)
ED: Publish subject to minor revisions (Editor review) (21 Apr 2017) by David Gillikin
AR by Ana Morales-Williams on behalf of the Authors (05 May 2017)  Author's response    Manuscript
ED: Publish as is (08 May 2017) by David Gillikin
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Short summary
Our study investigated the mechanisms sustaining cyanobacteria blooms when CO2 is depleted in lake surface waters. We found that when lake CO2 concentrations drop below those of the atmosphere, cyanobacteria switch on carbon concentrating mechanisms (CCMs), allowing them to actively take up bicarbonate. This may provide bloom-forming cyanobacteria with a competitive advantage over other algae. These results provide insight into the timing and duration of blooms in high-nutrient lakes.
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