The sciaenid white seabass ( Atractoscion nobilis ) is stocked in California (U.S.) where it supports commercial and recreational marine fisheries. Despite its importance, age and growth remains incompletely understood (e.g., differences between females and males) and has not been validated using known‐age fish. In this study, the sectioned sagittal otoliths of 196 hatchery‐reared white seabass were analysed. These known‐age f...