>Because marbled crayfish are genetically identical, easy to care for, and reproduce at high rates, they are a potential model organism, particularly for studying development. A major drawback, however, is the long generation time (several months) compared to other research organisms.
Since they are genetically identical wouldn't it be easier to create a population of genetically modified crayfish? Say you inserted a gene to produce a protein in one of them. Then all of it's off spring would produce that protein as well. In time you could have enough crayfish to produce your protein in commercial quantities.