Optimization of a survey using spatially balanced sampling: a single-year application of clam monitoring in the Arcachon Bay (SW France)Claire Kermorvant, Nathalie Caill-Milly, Frank D'Amico, Noëlle Bru, Florence Sanchez, Muriel Lissardy and Jennifer BrownAquat. Living Resour., 30 (2017) 37DOI: https://doi.org/10.1051/alr/2017036