Worry over fish discards ban on wildlife and fish stock
13 May 2014 Last updated at 14:48 BST
Researchers at Strathclyde University have said a ban on fishermen throwing away healthy fish could harm wildlife and fail to improve fish stocks.
The EU is gradually stopping the practice, called discards, which had been widespread as skippers tried to avoid falling foul of quota rules.
BBC Scotland's Steven Duff reports from an RSPB reserve near Stonehaven.