European Ocean Biodiversity Information System
[ report an error in this record ]basket (0): add | show Print this page
Calcification does not stimulate photosynthesis in the zooxanthellate scleractinian coral Stylophora pistillata
Gattuso, J.P.; Reynaud-Vaganay, S.; Furla, P.; Romaine-Lioud, S.; Jaubert, J.; Bourge, I.; Frankignoulle, M. (2000). Calcification does not stimulate photosynthesis in the zooxanthellate scleractinian coral Stylophora pistillata. Limnol. Oceanogr. 45(1): 246-250. dx.doi.org/10.4319/lo.2000.45.1.0246
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Waco, Tex., etc. ISSN 0024-3590; e-ISSN 1939-5590
Peer reviewed article  
Available in  Authors 
    Vlaams Instituut voor de Zee: Open Marine Archive 232618 [ download pdf ]
Keyword
    Marine/Coastal
Authors  Top 
  • Gattuso, J.P.
  • Reynaud-Vaganay, S.
  • Furla, P.
  • Romaine-Lioud, S.
  • Jaubert, J.
  • Bourge, I.
  • Frankignoulle, M.
Abstract
    The interaction between photosynthesis and calcification remains poorly known in zooxanthellate scleracti-nian corals. We tested whether calcification is a significant source of CO2 for photosynthesis in Stylophora pistillata. Rates of net photosynthesis, respiration, and calcification were measured on colonies incubated in synthetic seawater (SSW) controlled with respect to the inorganic carbon system and containing standard (11.40 mmol kg-1 ) and low (2.85 mmol kg-1 ) calcium concentrations. Net photosynthesis and respiration are not significantly different in standard and low-Ca2+ SSW despite a rate of calcification 2.0–2.4 times lower in Ca2+ -depleted SSW. Additional experiments carried out on the noncalcifying zooxanthellate Anthozoa Anemonia viridis demonstrate that a low calcium concentration has no direct effect on rates of photosynthesis and respiration. It is suggested that calcification is not a significant source of photosynthetic CO2 and that photosynthesis stimulates calcification rather than the opposite.
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors