Committee of Age Reading Experts

Ageing Manual

The Manual On Generalized Age Determination Procedures For Groundfish is available in PDF and MS Word (posted Oct 2006).


The manual was prepared by CARE technicians under the sponsorship of the Pacific States Marine Fisheries Commission for the Technical Subcommittee of The Canada/U.S. Groundfish Committee, May 2000.


Topics include:  international birthdate, age validation, otolith storage, clearing of otoliths, inter-agency age calibration exchange mechanism, edge type, and specific procedures for rockfish and sablefish.