Long-term dynamics for some biological parameters of pink salmon rom Asiatic herds

Relationships of year-to-year dynamics are analyzed between the body size of pink salmon and their regional and total abundance and between the size of juveniles and the size of returned adults. The dependencies are estimated for odd and even year-classes, separately, and for different periods of years. The body size variations relate closer with changes of regional abundance than with changes of total abundance for pink salmon from almost all regional herds except those reproduced in East Sakhalin and southern Kuril Islands. Variations of the body size correlate well between the juveniles and adults returning for spawning for the herds from East and West Kamchatka (both for odd and even year-classes) and East Sakhalin (for high abundance odd years-classes). Sustainability of some size-weight features formed in the early period of life during the further stages of feeding and spawning migration is assumed for pink salmon.