Reference : Seasonal and depth-related distributions of epiphytic Bryozoa in a Mediterranean seagras...
Scientific congresses and symposiums : Poster
Life sciences : Environmental sciences & ecology
Life sciences : Zoology
Life sciences : Aquatic sciences & oceanology
http://hdl.handle.net/2268/119339
Seasonal and depth-related distributions of epiphytic Bryozoa in a Mediterranean seagrass meadow
English
Lepoint, Gilles mailto [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie > >]
Balancier, Boris [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Oceanologie > >]
Gobert, Sylvie mailto [Université de Liège - ULg > Département de Biologie, Ecologie et Evolution > Océanologie >]
31-May-2012
Yes
No
International
3rd Mediterranean Seagrass Workshop (MSW2012)
from 28-05-2012 to 01-06-2012
Mediterranean Seagrass Association
Essaouira
Morocco
[en] bryozoa ; seagrass ; biofouling ; posidonia oceanica ; biodiversity
[en] Although biofouling on Posidonia oceanica (L.) Delile is thought to be driven by the variability of environmental parameters and phenology of the plant, effect of these parameters on sessile animal colonization is still poorly understood. This study aims to document the seasonality and the bathymetric variability of epiphytic Bryozoa diversity and abundance on this seagrass Posidonia shoots were collected in the Revellata bay (Corsica, Mediterranean) in five seasons from 7 to 30 m depth. Colony densities may reach more than 87000 colonies. m-2 at 10 m depth in spring; this probably implies an important contribution of Bryozoa larvae to spring plankton where P. oceanica meadows are present. The Bryozoa specific distribution and abundance appeared to be determined by the seasonality of both the environmental parameters and the plant phenology. However, depth and associated environmental gradients played a structuring role. Based on our data and on the literature, we propose a classification of epiphytic Bryozoa in four categories from hyper-epiphytic specialist to accidental epiphytes and underline the necessity to protect seagrass systems on their full depth range to maximize biodiversity conservation.
Centre Interfacultaire de Recherches en Océanologie - MARE ; laboratoire d'Océanologie
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Communauté française de Belgique - CfB
Structure spatio-temporelle et dynamique de l’azote au sein de la communauté épiphyte de la phanérogame marine Posidonia oceanica
Researchers ; Students
http://hdl.handle.net/2268/119339

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