Effects of fish farming on flavonoids in Posidonia oceanica.
This work is a first approach to flavonoid responses (total proanthocyanidins and total and simple flavonols) in Posidonia oceanica in function of nutrient enrichment (aquaculture activities - fish farming), in the western Mediterranean Sea (Calvi-Corsica-France). The first result is the presence of total and simple flavonoids in P. oceanica. The second result shows an increase in total proanthocyanidin and total flavonol concentrations near cages, which would be linked to the high grazing pressure induced by meadow enrichment. Concerning simple flavonols, only quercetin shows a response to fish farming, which could be due to its strong antioxidant capacity. The presence of fish farming, which causes variations in environmental parameters, could affect the functioning of P. oceanica meadows. Flavonoid concentrations in P. oceanica seem to be a possible bioindicator of nutrient enrichment for the management of the littoral environment.
Cannac
Magali
M
University of Corsica, Faculty of Sciences, Equipe Ecosystèmes Littoraux, BP 52, 20250 Corte, France.
Ferrat
Lila
L
Pergent-Martini
Christine
C
Pergent
Gerard
G
Pasqualini
Vanina
V
D035961:Alismatales / Q000737:chemistry / Q000187:drug effects*; D004784:Environmental Monitoring; D005398:Fisheries; D005419:Flavonoids / Q000032:analysis*; D005602:France; D008522:Mediterranean Sea; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity
D005419:Flavonoids; D014874:Water Pollutants, Chemical