id:"swepub:oai:DiVA.org:liu-176688"
Search: id:"swepub:oai:DiVA.org:liu-176688" > CO2 influence on ox...
- 1 of 1
- Previous record
- Next record
- To hitlist
CO2 influence on oxygen dynamics and net primary production of the microphytobenthos : an experimental approach
-
- de Oliveira, Vinícius Peruzzi (author)
- Federal University of Rio de Janeiro, Brazil
-
- Bento, Luiz Fernando Jardim (author)
- Federal University of Rio de Janeiro, Brazil
-
- Nielsen, Lars Peter (author)
- Aarhus University, Denmark
- show more...
- show less...
- (creator_code:org_t)
- 2020
- 2020
- English.
- In: Journal of Research in Ecology. - 2319-1546 .- 2319-1554. ; 8:1, s. 2702-2712
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Production of organic matter by phototrophs requires inorganic carbon,which in aquatic systems is taken up from the water column, sediment oratmosphere. Observations on a microphytobenthic mat overlaid with 2 mm of waterand atmospheric air showed a tight balance between consumption and production ofoxygen and, therefore, a bimodal pattern in the Net Primary Production (NPP).Enrichment of the air with CO2 led to an enhancement of the NPP of a community,while the removal of all CO2 from the air resulted in no NPP and a linear O2 gradientfrom the overlying water to the lower part of the mat. The distribution and rates ofgross photosynthetic oxygen production, measured as the oxygen decline within oneto twos after light-dark shifts, showed little response to CO2 depletion, suggesting thatthe photosynthetic electron flow was primarily redirected from CO2 fixation tophotorespiration. In nature, the observed control of NPP by atmospheric CO2concentration should be most pronounced in shallow-water and intertidal systems,and the productivity in these ecosystems may therefore be steadily increasing alongwith the increase in atmospheric CO2 concentration.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Research in Ecology (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- de Oliveira, Vin ...
- Bento, Luiz Fern ...
- Nielsen, Lars Pe ...
- Enrich Prast, Al ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Physical Geograp ...
- Articles in the publication
- Journal of Resea ...
- By the university
- Linköping University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
