On Friday, the UK authorized 41 ships equipped with Vessel Monitoring System technology to fish in waters off Jersey, an island in the Channel, with is a self-governing British Crown Dependency.
But there were also new demands that "were not arranged or discussed [with France], and which we were not notified about," the French fisheries ministry said.
The measures effectively create new zoning rules for the waters near Jersey "where the ships can go and cannot go," as well as stipulating the number of days the fishermen can spend at sea and what machinery they use, the ministry added.
"This is absolutely unacceptable," Girardin said. "If we accept this for Jersey, it would imperil our access everywhere."
Long-running tensions between British and French sailors were supposed to be solved by the Brexit Trade and Cooperation Agreement, but it has left many in the UK feeling let down.