Description of FLOLIZ. (A) & (B) − 3D side and profile design. Letters with a suffix number locate the different parts of the FLOLIZ detailed in each following panel; (A1) Floating part with helophytes; (A2) Underwater view of lateral part with empty wire cages; (B1) Juvenile Pike in 0.5 m-deep vegetation; (B2) Underwater view of 1m deep level with Potamogeton plant bed. ©UROS project (OFB-INRAE-ECOCEAN).