Document Detail


Physical and chemical control of the phytoplankton of Ahe lagoon, French Polynesia.
MedLine Citation:
PMID:  22260845     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The environmental characteristics of Ahe deep lagoon (Tuamotu Archipelago, French Polynesia) were studied over 3years with the aim of explaining the spatial and temporal variability of the natural food available for pearl oysters with a special focus on phytoplankton biomass and global photosynthesis/respiration ratio of the lagoon. Chlorophyll averaged 0.34±0.01μgL(-1) and our findings did not confirm increased phytoplankton biomass in deep lagoonal waters. Phytoplankton production appears to be limited firstly by nitrogen and respiratory processes overpass photosynthetic processes at least in the north-eastern edge of the atoll. Grazing by pearl oysters in culture seems to decrease the POC concentration but not the phytoplankton biomass. Oysters graze mainly on non chlorophyllian particles.
Authors:
Loïc Charpy; Martine Rodier; Jonathan Fournier; Marie-José Langlade; Nabila Gaertner-Mazouni
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-17
Journal Detail:
Title:  Marine pollution bulletin     Volume:  -     ISSN:  1879-3363     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
IRD, MIO, UR235, IRD Tahiti, BP 529, 98713 Papeete, French Polynesia.
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