Population dynamics of the venerid bivalve Callista chione (L.) in a coastal area of the eastern Mediterranean

摘要: Abstract The venerid bivalve Callista chione is the most prominent suspension-feeding inhabiting soft bottom of coastal areas in northern Euboikos Gulf (Aegean Sea), where it exploited by small-scale fishery. parameters von Bertalanffy growth function were estimated and somatic production-to-biomass ratio was found to be 0.45 y −1 . maximum age adult individuals 17 years. species gonochoristic, its oocyte diameter ranged from 54.5 120 μm with a conspicuous jelly-coat. Microscopical examination gonads showed that gonadal production did not start until second year life. observations on cycle indicate this capable year-round reproduction.