Visible Implant Elastomer Tags

Visible Implant Elastomer (VIE) Tags are colored tags used to identify fish, crustaceans, cephalopods, gastropods, reptiles, amphibians, small mammals, insects and other animals. Visible Implant Elastomer tags are injected as a liquid that cures into a pliable, bio-compatible solid. The tags are implanted beneath transparent or translucent tissue and remain externally visible.

Injecting Visible Implant Elastomer in dorsal fin

VIE is injected as a liquid and remains visible through clear or transparent tissue.

Visible Implant Elastomer is available in six fluorescent (red, pink, yellow, green, orange and blue) and four non-fluorescent (black, purple, brown, white) colors. The fluorescent colors are highly visible in ambient light and provide the option of greatly enhanced tag detection when fluoresced with the VI Light. Fluorescing the tags is especially helpful when tagging under pigmentation or when recovering tags in the dark.

Visible Implant Elastomer is typically used as a batch code, but coding schemes can be created by combining tag locations, tag colors and injecting more than one tag per animal.

Visible Implant Elastomer in ambient light and fluoresced

Visible Implant Elastomer is available in 10 colors, shown on the top, in ambient light. Red, green, yellow, orange, blue, pink and green fluoresce under the VI Light (bottom photo).

Visible Implant Elastomer tags are small, flexible and tend not to irritate surrounding tissue, making them usable in a wide variety of species and in animals smaller than most other tags can accommodate.

For manual tagging, VIE is sold in kits suited for all sizes of projects. The kits are easily transported into the field. Very large projects may benefit from using our Air Driven Elastomer Injection System.

We can help you decide whether VIE is suitable for your species, provide you with relevant publications, suggest which colors may work well for you and where you may like to put the tags to optimize retention, and estimate how much elastomer you will need. Please contact NMT with any questions.