..he catches ballan wrasse for salmon farming company loch duart.000 wrasse were caught in the portland and weymouth area for use on salmon farms. that's a little ballan wrasse. that's a ballan! tha's what we're looking for... loch duart only want luke to catch ballan wrasse as they're thought to be the hardiest wrasse species, best suited for surviving the journey to scotland and adapting to life in the salmon pens. so that one would be just too small, by a centimeter. it says 18 and 28 there. so they're the two marks, it's got to be between those two marks. they're the two marks, yeah. so he goes back? he goes back. across the south coast the ifcas — the inshore fisheries and conservation authorities — have placed some controls on this new fishery. here they've asked salmon companies and fishermen to sign up to voluntary guidelines including a close season, protected no—take zones and minimum and maximum sizes for each species. obviously it's not law but we stick to it. most of the fish luke catches are either the wrong species or the wrong size..