The Validity of Otolith-Based Age Estimates for the Walleye Pollock Theragra chalcogramma (Pallas, 1814) from the Eastern Sea of Okhotsk

Resumo

Data on age of the walleye pollock Theragra chalcogramma (Pallas, 1814) from the eastern Sea of Okhotsk, determined by otolith analysis, are considered. A comparison of the age–length relationships, as inferred from variations in modal body size of fish of strong year-classes and from otolith-based age estimates, has shown no significant differences. This confirms the accuracy of the otolith-based estimates of walleye pollock age.