Sustainable fisheries management requires information on factors that influence the resilience of individual fishing stocks to fishing pressure and environmental disturbance. This includes understanding the geographic boundaries of biological populations and the recruitment potential of individual stocks within and across these populations. In addition, industry and community engagement provides an invaluable resource to researchers for informing sampling practices and prioritising research goals. This study involves direct partnerships with fisheries managers and community enthusiasts, and uses a multidisciplinary research approach aimed at characterising patterns of biological stock structure in two crab species from southern Australia, the Tasmanian giant crab (Psuedocarcinus gigas) and the Australian spider crab (Leptomithrax gaimardii). Briefly, weak patterns of stock structure exist in the Southern Ocean P. gigas fishery, challenging previous assumptions of complete panmixia. In L. gaimardii, strong stock structure is present in South Australian crabs, appearing to be reproductively isolated from Victorian and Tasmanian stocks, which are admixed. This presentation will discuss the broader findings and implications of the stock structure patterns described above, as well as explore how strong industry and community relationships helped drive the research for the betterment of the researchers as well as these stakeholders.