Ecosystem model estimations of the distribution of biomass and predation with age for five species in eastern Bering Sea

The present paper is more a description of the methods and some generalization of the results rather than exhaustive study of "instantaneous" biomass distributions. The "instantaneous" biomass distribution with age/size of a given species pertaining to a given time and defined region can be computed with the method described in this paper, and would reveal the possible fluctuations in year-class strengths of specific year-classes if some additional information from dynamic numerical ecosystem models is used.