Sharpen your fish ageing skills with interactive training exercises designed to simulate real-world readings. Whether you’re new to ageing or looking to improve precision and consistency, these quizzes allow you to evaluate structures, assign ages, and compare your results to validated reference estimates.
New to ageing or need a refresher? This short video walks through how to identify growth increments, interpret annuli, and approach age estimation across common structures such as otoliths, scales, and fin spines. It also highlights key considerations like edge interpretation, distinguishing true annuli from checks, and recognizing sources of variability that can affect your estimates.
Select a species to take an ageing quiz.
age estimation quiz
age estimation quiz
Coming Soon! Fish Ageing Certification.
The FishAge Team is developing material to support certification on fish ageing.