Map Viewing Service (WMS) of the dataset: Health classification of the production areas in CLAIRES of the bivalve shells excavating on the Charente-Maritime coast.

Location of the health classification perimeters of shellfish production areas in CLAIRE (clear: shellfish production area consisting of a basin dug into clay soil with controlled seawater supply).
Group 2 excavating bivalves, i.e. filtering bivalve molluscs, whose habitat consists of sediment.
This group includes clams, hulls, tellins and clams.
Order of 31/08/2021

CLAIRE系统内贝类养殖区健康分类边界的位置（CLAIRE：由黏土开挖形成、海水供应受控的盆状贝类养殖区）。
第2组为挖掘型双壳类动物，即滤食性双壳软体动物，其栖息环境为沉积物底质。
该类群涵盖蛤类、斧蛤、樱蛤与蛤类。
2021年8月31日发布的行政命令。