Skates have been opportunistically tagged in the Ross Sea region since the early 2000s. A dedicated skate tagging programme was established in 2019/20 in the Ross Sea region to improve skate knowledge and validate the utility of caudal thorn band counts for ageing Antarctic Starry Skate (Amblyraja georgiana). Since 2019/20, 11,647 skates were tagged and released across the Ross Sea, Amundsen Sea, and Bellingshausen Sea, including ~2,400 individuals chemically marked with either oxytetracycline (OTC) or strontium chloride (SrCl). Between 2019/20 and 2025/26, 243 skates were recaptured and returned for laboratory analysis, remaining at liberty from 3 days to 22 years (mean: 4.5 years). Recapture distances ranged from 0.5 to 142 km, with 54% recaptured within 30 km of release, indicating limited movement and site fidelity. Of the recaptured skates, 38 were chemically marked (OTC n=32; SrCl n=12). Chemically marked skates were at liberty for up to six years, and eight OTC-marked skates showed confirmed chemical uptake into caudal thorns. However, minimal post-injection thorn growth and a lack of consistent band deposition prevented validation of annual band formation. Growth rates did not differ between chemically marked and unmarked skates, ranging from 0–5.7 cm/year (mean: 1.1 cm/year). Recaptured immature individuals at liberty for up to 17 years support previous estimates that this species reaches maturity ~20 years of age. These findings indicate that A. georgiana is a slow-growing, and likely long-lived, species with limited spatial movement. While OTC incorporation was confirmed, thorn banding does not appear to form annually. Future work will investigate elemental and isotopic characterisation and link these signatures to strong seasonal sea-ice cycles to progress our understanding of skate life history and ecology.