SE-MARK (calcein solution) is a marking agent for the mass marking of fish. This product is manufactured at our Ferndale Washington factory where we operate under strict Good Manufacturing Practices (GMP) as well as Good Laboratory Practices (GLP).

SE-MARK (calcein solution) is being developed to mark fin rays, scales, otoliths, and other calcified fish tissues through the use of immersion baths.  Marks left on these tissues remain invisable to the naked eye and can only be viewed with the use a special detector. Some photographs of SE-MARK marks can be seen above under "more images". Information on the detector can also be found above.

This product is available from Western Chemical and must be used according to the FDA's guidlines for Investigational New Animal Drug Application (INAD) # 10-987.

More information such as approved uses, study protocols, study summaries, application forms,  etc can be found at the website for the U.S. Fish & Wildlife Service office of Aquatic Animal Drug Approval Partnership Program (AADAP). 

 AADAP is located in Bozeman Montana and their website is as follows: www.fws.gov/fisheries/aadap/calcein.htm