Follow-up measures

Telemetric monitoring of gannets

Objectives and methodology

The objective of the measure is to improve knowledge of the ecology of the gannet in the bay of Saint-Brieuc. This monitoring is not intended to replace actions already carried out in the territory, but to complement them in order to refine knowledge of local colonies.

The field work will take place in Sept-Iles, but the data collected will allow detailed monitoring of their movements and fishing activities throughout the Channel.

Adult Gannets will be captured in Sept-Iles, during the breeding season. They will be equipped with the latest generation electronic devices allowing detailed monitoring of their movements on a small and large scale, their flight altitudes and their use of the project area. This equipment will consist of 15 GPS recorders, 20 geolocators, 10 altimeters and 10 miniaturized on-board cameras.

This measure will be implemented through close collaboration between the Sept-Iles nature reserve and the CNRS. This collaboration, in place for several years, has made it possible to validate and refine all of the protocols that will be used for this work, as well as all the logistical arrangements.

Location of actions

The capture and fitting of gannets will be carried out within the Sept-Iles reserve.


Schedule and Status


In development

Monitoring will take place over three years:

  • One year in the construction phase (2023) 0% 0%
  • two years in the operational phase (2024-2025) 0% 0%

Each year, monitoring will take place over a period of 3 months, which includes two and a half weeks of data collection on the Northern Gannets of Sept-Iles (June) as well as two and a half months of preparation of field work, data analysis and drafting of the annual report (June – July – August).

All follow-up measures

Reduction measures

Compensation measures

Accompanying measures