It is important to ensure consistency in fish ages used in fish population assessments. The Fishery Biology Program in the Northeast conducts age and growth studies and completes regular testing to provide measures of consistency and accuracy.
We examined opakapaka microstructure and age to provide information for a stock assessment, with the resulting criterion becoming a reference for future evaluation of main Hawaiian Islands sex-specific growth of opakapaka
This second edition of Brodeur (1979) includes the original drawings of sagittal otoliths for 51 common fish of the Northwest Atlantic. Species names have been updated, and new citations have been included to give it a more contemporary perspective.
This manual documents age determination techniques used by staff at the Woods Hole Laboratory to conduct age and growth studies and determine the age of various species from the New England and the Mid-Atlantic region.
These templates were designed to automate the calculation of measures of ageing precision (including percent agreement, coefficient of variance, and symmetry tests) and plot results for paired age data.