Definition of age characteristics of Antarctic toothfish (Dissostichus mawsoni) from the Indian Ocean sector of the Antarctic region

For the determination of the age of Dissostichus mawsoni used otoliths and scales. All samples were collected in the Indian Ocean sector of the Southern Ocean. Methods are described. Otoliths were measured and weighed. All major life periods in corresponding ecological conditions are reflected well in the sections of otoliths as certain groups of the annual rings.