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Lead–radium dating detected underlying problems in coordinating age estimation between geographically separated fish stocks, and provided a framework to objectively assess otolith interpretation and growth modelling between laboratories based on age-validated data.
For CQFE, under-ageing of ~3.3 years was observed for individuals with estimated ages under 20 years. Lead-radium dating of two deep-water fishes from the southern hemisphere, Patagonian toothfish (Dissostichus eleginoides) and orange roughy (Hoplostethus atlanticus). For the CAF, ages were overestimated for young fish and underestimated for the oldest fish.