By overgrazing seaweeds and sessile invertebrates, essentially back to bare rock, the advent of the long‐spined sea urchin Centrostephanus rodgersii in eastern Tasmanian waters poses a significant threat to the integrity, productivity and biodiversity of shallow (<40 m) rocky reef systems and the...

(1) To enable assessment reporting of trends in biomass and egg production by depth. (2) To evaluate separate deep-water quota to increase yield and egg production. (3) To evaluate regional size limits in Tasmania for increase in yield and egg production. (4) To conduct field...