Long-term effects of passive integrated transponder tags in far eastern catfish, Silurus asotus

The aims of this study were to determine the most suitable site and the histological responses to passive integrated transponder (PIT) tags inserted into three sites in far eastern catfish, Silurus asotus. During the experimental period, the tag retention rate and readability rate were greater for dorsal tags than for abdominal cavity or tail tags (P 0.05). GRW and SGR were lower in the winter than in the other season (P