Statutory guidance (from DEFRA Website)
Bass fishing guidance 2018

Updated 28 September 2018
1. Recreational bass fishing

For recreational fishers, from 1 October to 31 December 2018, not more than one specimen of European seabass may be retained and landed per fisherman per day. Any additional bass caught during 2018 must be returned immediately. This applies if you are fishing from a boat or from the shore.

So one bass/angler/per day may be weighed in FBAS comps.until year end.

For more information please contact the Authority or your local Marine Management Organisation office or go to – https://www.gov.uk/government/news/guidance-on-2018-bass-fishing-published