I am a French PhD student in co-tutelle between UTAS and the University of Western Brittany (France). My project aims at exploring and evaluating alternative harvest control rules for multispecies fisheries (i.e. where multiple species are simultaneously caught during single fishing operations) under quota management. I am addressing this question using a multispecies and multi-fleet bio-economic model applied to both the Bay of Biscay demersal fishery (France) and the South East Shark and Scalefish Fishery (Australia). More precisely, I am looking whether we can set quotas that ensure the sustainability of the harvested stocks while maintaining the fishery economically viable and attractive for crews, and meeting the consumers’ demand for fish.