Thus, for the management of the wet peat meadow recreated following the backfilling of the Yville-sur-Seine gravel pit, in 2010, HAROPA - Port of Rouen acquired two Camargue horses, rustic animals adapted to wetlands. The two mares, Bécassine and Sarcelle, maintain the meadow and keep the environment open.
The mares Bécassine and Sarcelle thus maintain the wet meadow created in Yville-sur-Seine
Extensive grazing is a tool for the biological management of wetlands and makes it possible to maintain natural environments while promoting biodiversity.
The Port is developing this practice in various natural areas under its management, in particular in conjunction with breeders or associations. Thus, in the Aizier sector, HAROPA - Port of Rouen has used goats to combat an invasive alien species: Japanese knotweed. At Moulineaux, a recreated wetland is maintained by cattle.