Mothur is a tool to analyze microbial communities.
To see what versions of mothur are available type
module avail mothur
To see what other modules are needed, what commands are available and how to get additional help type
module help mothur
To use mothur, include a command like this in your batch script or interactive session to load the mothur module:
module load mothur
Be sure you also load any other modules needed, as listed by the
module help mothur command.