A note on the dependence of juvenile marron, Cherax tenuimanus (Smith) (Decapoda: Parastacidae), on filter feeding (Short commun
Problem areas in the production of Cherax tenuimanus, a freshwater crayfish (the 'marron') introduced to South Africa from Australia , are outlined. The high juvenile mortality rate problem is discussed. With reference to the morphology of the mouthparts of the…