Jessica N. Coover

Comparison of Otoliths and Scales in Estimating Age of Redbreast Sunfish and Green Sunfish in the Yellow River Watershed, Georgia

SEAFWA Journal Volume 6, March 2019

Population-level studies often require age estimation of fish, but populations in small rivers and streams are generally smaller than those in large rivers or reservoirs. Therefore, non-lethal aging methods are generally recommended to minimize the potentially negative effects of sampling on population size. Accordingly, our main goal was to compare otoliths and scales as structures for estimating the age of redbreast sunfish (Lepomis auri- tus) and green sunfish (L. cyanellus) in an urban watershed. Reader agreement was greater for otoliths (88%–89%) than for scales (73%–79%), and pre-...