A method for tagging the Malaysian prawn Macrobrachium rosenbergii

A permanent method for tagging growing crutaceans is described for the Malaysian prawn Macrobrachium rosenbergii. The nylon filament tag did not interfere with molting or growth when tested on prawns over a 17-month period. Behavior of the prawns was likewise not affected by the tags. Tag retention in small ponds 3 months after their placement was 100%. Recovery of animals from larger ponds containing fish was 78%, but all animals recovered had retained their tags.