From the 28th to 30th August 2018 specialised divers are working to recover all ultrasound receivers which were placed along the river and at Delta.
With this job all receivers will be recovered and replaced by new ones which will allow data reading from the river surface with no need to handle them.
With these data and the receivers replacement very valuable data will be achieved to learn about fish behaviour inside the river and to value future management for these species.
