Reference : Influence of giant kelp beds (Macrocystis pyrifera) on diel cycles of pCO2 and DIC in...
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
http://hdl.handle.net/2268/2119
Influence of giant kelp beds (Macrocystis pyrifera) on diel cycles of pCO2 and DIC in the Sub-Antarctic coastal area
English
Delille, Bruno mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Borges, Alberto mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Delille, Daniel [ > > ]
2009
Estuarine Coastal and Shelf Science
Academic Press
81
114-122
Yes (verified by ORBi)
International
0272-7714
1096-0015
London
United Kingdom
[en] The partial pressure of CO2 (pCO2) and dissolved inorganic carbon (DIC) were monitored in shallow coastal waters located inside and outside giant kelp beds (Macrocystis pyrifera) located in the Kerguelen Archipelago (Southern Ocean). Photosynthesis and respiration by microplankton and kelp lead to marked pCO2 and DIC diel cycles. Daily variations of pCO2 and DIC are significant in the spring and summer, but absent in the winter, reflecting the seasonal cycle of biological activity in the kelp beds. If the kelp beds seem to favour the onset of phytoplankton blooms, most of the primary production inside the kelp beds is due to the kelp itself. The primary production of Macrocystis kelp beds in the Sub-Antarctic high-nutrient, low-chlorophyll (HNLC) waters off the Kerguelen Archipelago is elevated and closely linked to light availability. This production is significant from October to March and reaches its climax in December at the solar radiation maximum.
Institut Paul-Emile Victor ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Belcanto
Researchers
http://hdl.handle.net/2268/2119
10.1016/j.ecss.2008.10.004
http://www.elsevier.com/wps/find/journaldescription.cws_home/622823/description#description

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Ker diel cycles 2.9 orbi.pdfAuthor postprint365.5 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.