The EU says it wants a "fair deal" that gives access for boats from the bloc's member states such as France and the Netherlands.
Britain says becoming an independent coastal state after the end of the transition will hand it back control over who has access to British fishing waters — a commitment from the government that Barrie Deas, chief executive of the National Federation of Fishermen's Organisations, described as "clear and unequivocal".
Deas said Britain wants a deal with Brussels that is similar to the one with Norway, but that the EU's refusal "underlines that it's the EU that is the outlier in this by comparison with other countries, other coastal states".
"In that respect it is the EU and what they are seeking with the UK (which) is the aberration in international fisheries terms."
(Writers: Terje Solsvik, Elizabeth Piper | Editors: Gareth Jones, Timothy Heritage)