A tiny silver fish which is an important food source in the North Sea will take centre stage Tuesday as the European Union and Britain square off over post-Brexit fishing

Representatives of the United Kingdom and the European Union look on as Britain and the European Union face a hearing at the Permanent Court of Arbitration in the first post-Brexit trade dispute that has gone to arbitration over a ban on catching sandeels in British waters,

The tiny sand eel is used widely as bait and in animal feed — but it's also an important food source for puffins and other seabirds.