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Fishery Biology Program

The Fishery Biology Program, part of the Population Biology Branch at the Woods Hole Laboratory of the Northeast Fisheries Science Center (NEFSC), seeks to measure important biological processes of fish and shellfish off the northeast coast of the United States. This includes determining the ages of over 50,000 samples each year and studying the reproductive output of various species.


Annotated haddock otolith section, 2 years, 44cm
Fish Age Basics

How and why we age fish
Cod line drawing
Predict Fish Age from Lengths

Learn more about the fish you caught!
Fish maturity cycle
Fish Reproduction Research
Age-bias plot
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(File Modified May. 25 2017)