Method name: Internal tagging of cod with DSTs and double tagging with a DST and a conventional tag.

Abstract

Some objectives of experiments where this tagging method has been used: Research of the behaviour of sexually mature cod in Icelandic waters; Study of Behaviour that influences catchability such as Availability and Accessibility (Harden Jones 1974) . Migration, Vertical movements, Geographic distribution, Habitat preference, Exploitation, Mortality, Growth (Pálsson & Thorsteinsson 2003) , Spawning behaviour (Thorsteinsson & Marteinsdóttir 1998) Double tagging with a DST and conventional tag CT to observe tag retention and differential returns of tags.