A Transregional and Interdisciplinary Study of the Societal Impact of the Shipworm Epidemic in the North Sea Region in the Eighteenth Century


Michael Serruys (CRBC-UBO)

Project type

European project


Marie Skłodowska Curie Actions

Project duration

Start Date


End Date



compte Twitter: @shipwormhistory

“Panic at the shore … !”

This European and interdisciplinary research aims to understand how societies react to environmental crises. Project SHIPWORM brings together historians from the CRBC (Centre de recherche bretonne et celtique, Univ de Bretagne Occidentale, Brest France) and marine ecologists from LEMAR (Laboratoire des sciences de l’environnement marin, Plouzané, France) to shed light on a forgotten, but major environmental crisis of the eighteenth century: the shipworm infestation of North-Western Europe in the 1730s.

The Teredinidae, more familiar under their common name, ‘shipworms’, are marine bivalves related to clams, oysters and mussels. The adult forms live only in wood found in marine environments, whether floating on the surface, or submerged on the ocean floor. With its two shells, it grinds and tunnels into the wood, ultimately destroying it entirely.

Before the eighteenth century, this mollusc was known on European coasts, but mostly for the damage it caused to ship hulls, not fixed structures, like quays. Within a handful of years, harbour infrastructures, like quays, docks, bridges, locks, but also dikes, were destroyed or damaged beyond repair. The societal impact of the shipworm’s destruction was wide-ranging and profound for local coastal communities, and ultimately for the societies on the North Sea.

The ‘SHIPWORM’ project looks at how this infestation and the damage it caused led to a wave of religious fanaticism, innovations in ship building, political upheaval, international power politics, new trade routes, novel water management technologies, democratisation process, and even mass executions of homosexuals in eighteenth century Western Europe.


News and updates on our progress are published on the project twitter account: @Shipwormhistory


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