1. Estimate biological parameters (growth and natural mortality) required to model optimal size limits for two species of Moreton Bay bug

2. Identify physical evidence of the practice of "scrubbing" ovigerous female bugs, develop expertise in the identification of scrubbed bugs, and model the effects of this practice on yield from the stocks of the two species

3. Determine if a third species is present in the trawl fishery of Mackay and its contribution to bug landings

4. Initiate attaining of population parameters necessary for optimising the harvest of the resource