As a summary of the finding from the investigation of fishes in Beitang Estuary,Tianjin,the paper deals with the young fishes 'biomass, composition and change, and studies the spawning habit, spawning time, fecund...As a summary of the finding from the investigation of fishes in Beitang Estuary,Tianjin,the paper deals with the young fishes 'biomass, composition and change, and studies the spawning habit, spawning time, fecundity, age structure and type of the spawning stocks in the estuary.展开更多
文摘As a summary of the finding from the investigation of fishes in Beitang Estuary,Tianjin,the paper deals with the young fishes 'biomass, composition and change, and studies the spawning habit, spawning time, fecundity, age structure and type of the spawning stocks in the estuary.
