Fish Age Reader

Also called: Otolith Technician, Age and Growth Technician

Figures out the age of fish by counting growth rings in their ear bones (otoliths), like tree rings.

A day in the life

Slices tiny fish ear stones thin enough to see through, counts the rings under a microscope, and feeds the ages into stock assessments that set fishing limits.

Pay over a career

Starting
$40k
Typical
$52k
High
$68k

Estimate.

Approximate: anchored on Bureau of Labor Statistics data for a broader job group.

Training

Bachelor's degree (4-year), about 4 years after high school. Bachelor's in fisheries or biology; on-the-job training.

Ways in: 4-year college, On-the-job training. Training cost: $15k – $60k.

Majors to look at: Fisheries Science, Biology.

Outlook

Growing about average. Steady at NOAA and state labs.

Will it last? Our AI estimate

Medium risk in 5 years, high in 10. AI image tools are learning to count otolith growth rings, the core of the job; fewer human readers will be needed.

Start now, in high school

Classes: AP Biology, AP Statistics, Computer science, Chemistry.

Official data: O*NET occupation 19-4021.

More Marine Mammals & Fisheries careers

Career Universe is an early version. Pay, training and AI-risk figures are estimates to start your own research, not verified facts. The research was written with AI research assistants, checked by validation scripts and spot-checked by hand. Check anything important with schools, employers and official sources. How the numbers work.