Otolith from a Bloater Chub used for age analysis

Bloater Otolith Used to Determine Fish Age

Detailed Description

An otolith, sometimes called “earstone,” of a bloater, a small prey fish in the Great Lakes. Fishery scientists interpret the age of bloater and other fishes by counting annual growth rings on their otoliths.

Details

Image Dimensions: 1268 x 644

Date Taken:

Location Taken: US

Credits

USGS-GLSC