A partnership of scientists, local authorities and fishers is investigating an unusual increase in octopus numbers and what it could mean for marine ecosystems, fisheries and coastal communities.
A rare bloom of common octopus (Octopus vulgaris) has prompted an unprecedented collaboration between Plymouth City Council, Devon County Council and DEFRA. First reported by South West fishers, the increase in octopus numbers has disrupted traditional crab and lobster catches, leading to a major scientific investigation.
The study is being led by Dr Bryce Stewart of the Marine Biological Association, with support from Plymouth University and Plymouth Marine Laboratory. Researchers aim to better understand the causes of the bloom and its impacts on local marine ecosystems and fishing communities.
Former fisher Dr Simon Thomas is working directly with local fishing communities to gather real-time observations and experience from those working at sea. The project combines this local knowledge with environmental monitoring and scientific data to build a clearer picture of what is happening in South West waters.
Researchers will use a range of monitoring techniques, including baited remote underwater video systems and time-lapse cameras, to study octopus behaviour and track changes in marine ecosystems. The findings could help inform future monitoring and contribute to the development of early warning systems.
As sea temperatures rise and marine environments change, understanding shifts in species distribution is becoming increasingly important. The project highlights how research, monitoring and collaboration can help coastal communities and industries adapt to changing conditions and respond more effectively to emerging climate-related risks.
The initiative has been praised for bringing together scientific expertise and community knowledge, providing a practical example of how local partnerships can support climate resilience and improve understanding of the impacts of a changing marine environment.
Read more on the Plymouth City Council website.
How Is This Helping DCIoS Adapt To Climate Change?
Action NEA 2: Increased protection and expansion of blue carbon habitats and Marine Special Protected Areas (>30%) – this will reduce stress to allow habitats to adapt.
Action NEA 3: Develop a regional Invasive Species Management Plan to ensure pests, pathogens and diseases are monitored and action plans and prevention measures are developed.
Action NEA 4: Set out a regional strategy to protect, restore and enhance terrestrial carbon stores from land use change and increase the resilience where possible.
Action NEA 5: Develop long-term green space and Local Nature Recovery strategies to demonstrate what type of habitat will be supported in the future and opportunities for supporting human health.
