Age determination materials and equipment

"Virtually all of the equipment employed by the Alaska Fisheries Science Center Age and Growth Program is used to enhance the visibility of annual marks so they can be contrasted with checks (non-annual marks) and be more easily counted. Equipment and supplies are broken up into the following categories: general supplies (Table 1), sample storage (Table 2), specimen preparation (Table 3), microscopes, imaging, and software (Table 4), and vendors (Table 5)"--Page 1. 2012 NMFS (National Marine Fisheries Service) Submitted Public Domain 1951