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Otolith Age and Growth – Lab Report

Megan DeMatteo | Fisheries Science & Management Stockton University| May 3, 2019 Abstract The main objective of this study was to obtain a better understanding of otoliths, understand their important role in conducting research, and understanding the relationships between their growth rings and fish size. In this laboratory experiment otoliths will be identified, removed, embedded, polished, and analyzed to properly read through several microscopic lenses.  The data collected was otolith length, width, and measurements were taken for each growth ring within their secondary growth center. When this data was compared to the overall fish size the results shown were a positive correlation between otolith growth and fish size. In simpler terms this means that as the fish grows so did its otolith rings. Another factor taken into consideration was although the data did show a positive relationship, once the fish…