Credit: Glenda Vélez Calabria (Colombia)
The recovery plan of the European eel, Anguilla anguilla, includes an review of the creels that had been previously placed in the National and Natural Park Doñana as well as also in the Guadiamar Green Corridor. This activity is carried out in order to keep track of the biological conditions of adult eels that start their migration process towards the sea. The photo shows the placing of a creel in a predetermined location.