The government of Jersey, a self-governing Channel Island between France and Britain, said Monday that it had extended a transitional fishing agreement with the European Union allowing EU boats to continue operating in its waters for three months. “The EU has recently requested an extension to the transitional arrangements, which had been due to come to an end on 30 June,” a statement from the Jersey government said, adding that “Jersey ministers have agreed to that request.” Jersey lies just off France’s northern coast and access to its rich waters has become a source of friction since Britain’s departure from the EU on January 1 tore up arrangements for fishing in the Channel. To gain new licences, Jersey has insisted that EU boats hand over proof that they have been operating in its wat...