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The Physiological Response of Two Green Calcifying Algae from the Great Barrier Reef towards High Dissolved Inorganic and Organic Carbon (DIC and DOC) Availability

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dc.contributor Australian Inst Marine Sci
dc.contributor Dept Ecol
dc.contributor Leibniz Zentrum Fur Marine Tropenforschung (zmt)
dc.contributor Leibniz Ctr Trop Marine Ecol Zmt
dc.contributor University Of Bremen
dc.contributor Australian Institute Of Marine Science
dc.contributor Univ Bremen
dc.contributor Fac Biol & Chem
dc.contributor.author WILD, CHRISTIAN
dc.contributor.author MEYER, FRIEDRICH WILHELM
dc.contributor.author VOGEL, NIKOLAS
dc.contributor.author TEICHBERG, MIRTA
dc.contributor.author UTHICKE, SVEN
dc.date.accessioned 2015-10-06T00:10:24Z
dc.date.accessioned 2017-03-21T01:01:51Z
dc.date.accessioned 2015-10-06T00:10:24Z
dc.date.accessioned 2018-11-01T03:24:04Z
dc.date.available 2017-03-21T01:01:51Z
dc.date.available 2017-03-21T01:01:51Z
dc.date.available 2015-10-06T00:10:24Z
dc.date.available 2018-11-01T03:24:04Z
dc.date.issued 2015-08-12
dc.identifier.citation Meyer FW, Vogel N, Teichberg M, Uthicke S, Wild C (2015) The physiological response of two green calcifying algae from the Great Barrier Reef towards high dissolved inorganic and organic carbon (DIC and DOC) availability. PLoS ONE 10(8): e0133596 en_US
dc.identifier.issn 1932-6203
dc.identifier.uri http://epubs.aims.gov.au/11068/11311
dc.description.abstract Increasing dissolved inorganic carbon (DIC) concentrations associated with ocean acidification can affect marine calcifiers, but local factors, such as high dissolved organic carbon (DOC) concentrations through sewage and algal blooms, may interact with this global factor. For calcifying green algae of the genus Halimeda, a key tropical carbonate producer that often occurs in coral reefs, no studies on these interactions have been reported. These data are however urgently needed to understand future carbonate production. Thus, we investigated the independent and combined effects of DIC (pCO(2) 402 mu atm/pH(tot) 8.0 and 996 mu atm/pH(tot) 7.7) and DOC (added as glucose in 0 and 294 mu mol L-1) on growth, calcification and photosynthesis of H. macroloba and H. opuntia from the Great Barrier Reef in an incubation experiment over 16 days. High DIC concentrations significantly reduced dark calcification of H. opuntia by 130 % and led to net dissolution, but did not affect H. macroloba. High DOC concentrations significantly reduced daily oxygen production of H. opuntia and H. macroloba by 78% and 43 %, respectively, and significantly reduced dark calcification of H. opuntia by 70%. Combined high DIC and DOC did not show any interactive effects for both algae, but revealed additive effects for H. opuntia where the combination of both factors reduced dark calcification by 162 % compared to controls. Such species-specific differences in treatment responses indicate H. opuntia is more susceptible to a combination of high DIC and DOC than H. macroloba. From an ecological perspective, results further suggest a reduction of primary production for Halimeda-dominated benthic reef communities under high DOC concentrations and additional decreases of carbonate accretion under elevated DIC concentrations, where H. opuntia dominates the benthic community. This may reduce biogenic carbonate sedimentation rates and hence the buffering capacity against further ocean acidification.
dc.description.sponsorship The study was conducted with the support from the German Leibniz Association (WGL;http://www.leibniz-gemeinschaft.de/en/home/), the Australian Government's National Environmental Research Program NERP 5.2 (http://www.environment.gov.au/science/nerp) and an Australian Research Council Discovery Grant to SU (http://www.arc.gov.au/). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
dc.description.sponsorship The study was conducted with the support from the German Leibniz Association (WGL; http://www.leibniz-gemeinschaft.de/en/home/), the Australian Government's National Environmental Research Program NERP 5.2 (http://www.environment.gov.au/science/nerp) and an Australian Research Council Discovery Grant to SU (http://www.arc.gov.au/). en_US
dc.description.uri http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0133596 en_US
dc.language English
dc.language.iso en en_US
dc.publisher PLoS (Open) en_US
dc.relation.ispartof Null
dc.rights Attribution 3.0 Australia *
dc.rights.uri http://creativecommons.org/licenses/by/3.0/au/ *
dc.subject Ocean Acidification
dc.subject Science & Technology - Other Topics
dc.subject Coral-reefs
dc.subject Matter Release
dc.subject Benthic Foraminifera
dc.subject Water-quality
dc.subject Multidisciplinary Sciences
dc.subject Climate-change
dc.subject Halimeda
dc.subject Reduced Calcification
dc.subject Productivity
dc.subject Environment
dc.title The Physiological Response of Two Green Calcifying Algae from the Great Barrier Reef towards High Dissolved Inorganic and Organic Carbon (DIC and DOC) Availability
dc.type journal article en_US
dc.identifier.doi 10.1371/journal.pone.0133596
dc.identifier.wos WOS:000359492300018


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