Biological characteristic of herring of Peter the Great Bay (Japan Sea)

Abstract

Herring in Peter the Great Bay (Clupea pallasii) lives on the southern outskirts of the species’ range, is significantly inferior to other Far Eastern herring populations in level of stock, but is periodically able to form a relatively high abundance. A long-term analysis of the lengthage composition showed the presence in this population of fish groups that differ in life cycle duration, puberty time, and population dynamics. Stock level and success of reproductive strategy of herring in Peter the Great Bay determines the coincidence of intrapopulation factors and favorable features of the current climatic phase. In each new background, the population undergoes the initial stage of formation of the corresponding reproductive organization, preceding the increase in abundance.