Article (Scientific journals)
Carbon dioxide daily variations and atmospheric fluxes over the Great Bahama Bank using a novel autonomous measuring system
Frankignoulle, Michel; Biondo, Renzo; Théate, Jean-Marie et al.
2003In Caribbean Journal of Sience, 39 (3), p. 257-264
Peer reviewed
 

Files


Full Text
Frankignoulle_et_al_2003.pdf
Publisher postprint (125.87 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] A novel autonomous measuring device that acquires the partial pressure of CO2 (pCO2) by equilibration and several other parameters is described. This device, the Floating Equilibrator System (FES) was tested in field conditions for the first time in the Great Bahama Bank, in December 2000. We successfully carried out two 24 h cycles in Norman’s Pond, one in front of the Caribbean Marine Research Centre (CMRC) and another one near Bock Cay. Over-saturation of CO2 with respect to atmospheric equilibrium was observed systematically at the three sites, although significantly more marked at Norman’s Pond. The higher values of pCO2 and atmospheric CO2 fluxes obtained at Norman’s Pond, than in the adjacent open waters of the Great Bahama Bank, suggest a comparatively stronger heterotrophy at Norman’s Pond. This is most likely related to the organic carbon inputs to the water column and sediments from the dense mangrove forest surrounding Norman’s Pond. The larger amplitude of pCO2 daily variations observed, during the Norman’s Pond 24 h cycles, is probably due to higher biological activity than in the adjacent open waters of the Great Bahama Bank. This is corroborated by a tentative estimation of Gross Primary Production based on simple computations. We speculate that calcification could also contribute to some extent to different amplitude of the pCO2 daily variations between the mangrove pond and the open waters of the Great Bahama Bank.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Frankignoulle, Michel
Biondo, Renzo ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie
Théate, Jean-Marie
Borges, Alberto  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique
Language :
English
Title :
Carbon dioxide daily variations and atmospheric fluxes over the Great Bahama Bank using a novel autonomous measuring system
Publication date :
2003
Journal title :
Caribbean Journal of Sience
Volume :
39
Issue :
3
Pages :
257-264
Peer reviewed :
Peer reviewed
Available on ORBi :
since 05 January 2009

Statistics


Number of views
109 (10 by ULiège)
Number of downloads
91 (5 by ULiège)

Bibliography


Similar publications



Contact ORBi