Farmers receive higher prices per kilo for large yabbies. Yabby farmers have reported that the majority of yabbies trapped from farm dams are below market size (< 30 g) and therefore of no economic value. In addition, farmers also report that while dams produce large yabbies when...

The Western Australian Pearling Industry is totally reliant on quotas of wild stock silver- or goldlip pearl oysters, Pinctada maxima. Any sustainable expansion of the Industry is unlikely to occur unless hatchery-propagated oysters become available as an alternative source to wild stock....

This project reports on: 1) our detailed evaluation of current methodologies for otolith chemical analysis, and our recommended procedures when electron probe microanalysis is used for stock delineation in finfish 2) our assessment of the accuracy and precision of otolith probe microanalysis...

The purpose of the grant was to develop a method of measuring density of settlement of the abalone Haliotis laeviqata in relation to spawning stock size and the subsequent catch in the fishery. It was hoped that settlement strength, if it was controlled by oceanographic conditions, would be a useful...