Inventors:
Ellis T. Bolton - Lewes DE
Noel D. Dey - Lewes DE
Assignee:
University of Delaware - Newark DE
International Classification:
A01K 6100
Abstract:
A new method to mark large numbers of molluscs permanently is described. Molluscs, in particular certain bivalve molluscs, (>1mm) are placed in a tank containing media, food, and tetracycline at a concentration of 0. 5-200mg 1. sup. -1. Bivalves so treated daily for one to fourteen days, or longer as desired, will be permanently marked in such a manner as to render them identifiable at any later time. The mark is normally weakly visible but fluoresces a vivid yellow-orange when exposed to ultraviolet light.