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4 March 2026
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Staff : KELLNER Kristell, Yohan ANSEL and Hubert DE PONTAVICE (from IFREMER in Port-en-Bessin)

Reference

Experiments under controlled conditions in Blainville-sur-Mer this Monday, March 9 – CCLIMB’UP

The whelk facing climate and economic challenges

The whelk is the second most commercially valuable species in Normandy. However, catches have fallen by 30% over the past five years, raising concerns about the long-term sustainability of the profession.

The CCLIMB’UP project aims to better understand the impact of climate change and to ensure sustainable resource management through four research areas:

 

🔹 Climate impact: Study of the effects of temperature variations and heatwaves on whelk biology (growth, reproduction, mortality).

🔹 Stock monitoring: Implementation of data collection tools and analysis of the impacts of increasing the minimum landing size.

🔹 Socio-economic situation: Assessment of the profitability and vulnerability of fishing businesses, and consultation with stakeholders in the sector.

🔹 Communication: Sharing results with professionals, scientists, and the general public through various media (videos, articles, publications).