Two deep sea crab species crystal crab (Chaceon albus) and champagne crab (Hypothalassia acerba) are captured by both the West Coast Deep Sea Crustacean Managed Fishery (WCDSCMF) and South Coast Crustacean Managed Fishery (SCCMF). Determination of the recruitment linkages between the west and south coast fisheries will have implications on the management arrangement required for both fisheries. This project aims to provide a better understanding of the stock structure of both species.