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.


Fish Age Basics
How and why we age fish

Brodeur's Otolith Guide
Line drawings of otoliths from various species

Fish Reproduction Research

Quality Assurance and Control Results
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(File Modified Jan. 09 2018)