Modelling spatial distribution of Patagonian toothfish through life-stages and sex and its implications for the fishery on the Kerguelen Plateau

•First modelling study of P. toothfish spatial structure on the Kerguelen Plateau.•Combine French and Australian fishery and research survey data.•Spatial segregation of life-stages across a huge depth gradient (80m to 2300m).•Higher proportion of males caught in the North-West part of the Plateau.•Spatial population models are important to inform management strategies.