What new customs checks are needed for fish and what is causing the delays?
Fish exports from Scotland to the EU are being held up by the deluge of additional paperwork involved in the new customs arrangements, IT problems and delays to safety checks.
All exports require a catch certificate to prove the fish has been landed by a UK flagged catching vessel into the UK, and an export health certificate.
Last night, sources said vet checks on live seafood exports were taking up to four hours to complete, when they should take between 45 minutes to an hour.
In addition, rather than a few boxes being removed for checks, entire trailers are being emptied so every box and label can be checked.
A Government minister claimed fish in UK waters are better and happier since Brexit took place - amid growing fury at red tape costing the seafood industry millions.
Commons Leader Jacob Rees-Mogg made the claim in the Commons today after days of claims that exporters have been hit by a perfect storm of bureaucracy, IT problems and confusion since the EU trade agreement kicked in on January 1.
There were complaints of shellfish rotting in ports as the disastrous hold-ups meant they could not be sold in Europe.
After SNP politicians claimed that the hold-ups were costing £1million per day, Tory Brexiteer Mr Rees-Mogg said: What is happening is that the Government is tackling this issue, dealing with it as quickly as possible, and the key thing is we ve got our fish back.
Nicola Sturgeon: Brexit delays to fish exports are shameful and disgraceful eveningexpress.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eveningexpress.co.uk Daily Mail and Mail on Sunday newspapers.