Reference : Assessment of the ecological status of P. oceanica meadow with a no destructive shoot...
Scientific congresses and symposiums : Paper published in a book
Life sciences : Aquatic sciences & oceanology
Life sciences : Environmental sciences & ecology
http://hdl.handle.net/2268/124326
Assessment of the ecological status of P. oceanica meadow with a no destructive shoot method
English
Gobert, Sylvie [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie >]
Lejeune, Pierre [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie >]
Chéry, Aurélia [STARESO sa > > > >]
Boissery, Pierre [Agende de l'Eau > > > >]
Sartoretto, Stéphane [IFREMER > > > >]
Andral, Bruno [IFREMER > > > >]
Lepoint, Gilles [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie >]
Richir, Jonathan mailto [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie >]
Jun-2012
Proceedings of the Mediterranean Seagrass Workshop 2012
Yes
No
International
Essaouira
Morocco
3rd Mediterranean Seagrass Workshop
du 28 mai au 1 juin 2012
Ecole supérieure de technologie Essaouira
Essaouira
Maroc
[en] Seagrass ; mediterranean ; ecological status ; no destructive ; PREI
[en] Posidonia oceanica (L.) Delile is a protected species, included in the Red list of marine threatened species of the Mediterranean. Because of its sensitivity to disturbance, P. oceanica is used as a bioindicator to define the health status of coastal waters. Monitoring methods generally require to sample plants, followed by measurements on picked shoots. This implies the total destruction of several tens of shoots. This study presents a method, “The Non Destructive Shoot Methodology”: NDSM, that permits the measurement of (1) the most used seagrass metrics, (2) the determination of C, N, P contents and (3) the measurement of the trace metal levels in P. oceanica leaves. Our technic has been firstly tested by comparison with the results obtained with classic method of biometry. Secondly, differences between levels of C, N, P and trace metals obtained with classic picking and our methodology were tested. Thirdly, the physiological consequences
on the shoots were investigated (% of survival, growth, essential element contents (C, N, P, Fe, Cu...). The NDSM gives similar results to classic investigations to assess the ecological status of P. oceanica meadow (i.e. PREI, BiPO...) and avoid the uprooting of the “K-strategist” protected species. This methodology is usable in cases of monitoring and impact studies.
Patrimoine Ulg
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/124326

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