For over thirty years NMT has specialized in implant tags for live fish, crustaceans, reptiles and amphibians, and other aquatic animals in a manner that minimizes biological impact while providing clear and unbiased data.
NMT has patented several versions of Visible Implant tags used for the identification of fish ("internal" tags are implanted within the fish, as opposed to other techniques of attaching external tags with internal anchors which have foreign material that penetrates through the external surface of fish).
These tags differ from the Coded Wire Tag because their code can be read externally by the naked eye. NMT specializes in developing and manufacturing sophisticated mechanical and electronic tools and equipment for fisheries research and management.