This report documents the age determination protocol for longfinned (Anguilla dieffenbachii) and shortfinned (Anguilla australis) eels, describing the current scientific methods used in New Zealand for otolith preparation and age determination to ensure accuracy and consistency over time. A brief history and the changes in the methodologies used in ageing freshwater eels are reported, and a description of the reference collection, and annotated examples of freshwater eel otolith preparations are also included.
FAR 2016/02 Age determination protocol for freshwater eels (Anguilla dieffenbachii, Anguilla australis)
Report - Fisheries Assessment Report (FAR)
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