Paralytic shellfish poison outbreaks in the Penzé estuary: Environmental factors affecting toxin uptake in the oyster, Crassostrea gigasPatrick Lassus, Régis Baron, Pierre Garen, Philippe Truquet, Pierre Masselin, Michèle Bardouil, Didier Leguay and Zouher AmzilAquat. Living Resour., 17 2 (2004) 207-214DOI: https://doi.org/10.1051/alr:2004012