1 Answer

The Flay tag consists of a plastic bar that locks into the internal part of the

dorsal fin rays and a streaming plastic tube, usually yellow, with a printed

legend and number. The legend identifies the country or organisation

using the tag' IRL identifies the user as the Fisheries Research Centre,

Ireland, and the number identifies the individual fish.

The tag is insertedlevel with the front of the dorsal fin and streams alongside the fin. The

tags are manufactured in cartridges of 50 and are injected with a specially

designed gun. The main advantages of the Flay system are the speed

at which the fish can be tagged and the relatively small amount of handling

necessary to tag the fish.