The Fishery Protection Vessel Cranogwen spotted about a mile off Rhossili on 07 December 2008 and heading West past the Worm.
Below is some information from the SWSFC (South Wales Fisheries Committee) website.
The Committee has a staff of up to 13; most of whom are outstationed. The office for administration is in Swansea. In undertaking their work, fishery officers use a combination of vehicles and vessels e.g. shore launched rigid hulled craft, purpose built 20 metre Fishery Protection Vessel "Cranogwen", built in 1987, and upgraded in 2005. Officers check compliance of fishing vessels operations, methods and fish sizes with relevant fisheries legislation.
Cranogwen Swansea Bay 17 December 2008
Cranogwen at Miford Haven 23 March 2009