| Low community photosynthetic quotient in coral reef sediments. | |
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MedLine Citation:
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PMID: 18722986 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Fluxes of dissolved inorganic carbon and oxygen at the water-sediment interface were measured at eight coral reef stations (Indian Ocean) in summer and winter. The dark fluxes provided the community respiratory quotient (CRQ = dissolved inorganic carbon release / oxygen uptake) and the diurnal fluxes corrected from the dark fluxes gave the community photosynthetic quotient (CPQ = oxygen gross release / dissolved inorganic carbon gross uptake). The CRQ and the winter CPQ were not significantly different from 1. Summer CPQ (0.79; SD 0.02) was significantly lower than 1 due to the combined effect of the daily evolution of the community respiration and the discrepancy between the daily evolution in community oxygen respiration and community carbon respiration. These results highlight the importance of measuring simultaneously the benthic community production and respiration for long term integrated data sets, instead of the traditional daily or seasonal budget calculations from limited measures of community respiration. |
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Authors:
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Dorothée Taddei; Pascale Cuet; Patrick Frouin; Clémentine Esbelin; Jacques Clavier |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Comptes rendus biologies Volume: 331 ISSN: 1631-0691 ISO Abbreviation: C. R. Biol. Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-08-25 Completed Date: 2008-10-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101140040 Medline TA: C R Biol Country: France |
Other Details:
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Languages: eng Pagination: 668-77 Citation Subset: IM |
Affiliation:
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ECOMAR, Université de la Réunion, avenue René-Cassin, 97715 Saint-Denis de la Réunion, France. taddei@univ-reunion.fr |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anaerobiosis Animals Anthozoa / metabolism* Chlorophyll / metabolism Data Interpretation, Statistical Environment Geologic Sediments / analysis* Hydrogen-Ion Concentration Kinetics Oxygen / analysis Oxygen Consumption Photosynthesis / physiology* Seasons Seawater / analysis Temperature |
| Chemical | |
Reg. No./Substance:
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1406-65-1/Chlorophyll; 479-61-8/chlorophyll a; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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