Effects of Terrestrial Inputs on Mesozooplankton Community Structure in Bohai Bay, China

Zooplankton play a pivotal role in connecting primary producers and high trophic levels, changes their temporal spatial distribution may affect the entire marine ecosystem. The seasonal taxonomic composition patterns of mesozooplankton Bohai Bay were investigated relation to number water parameters. is eutrophic semi-enclosed bay with dynamic physico-chemical conditions influenced by terrestrial inputs seawater intrusion. results showed that under condition terrigenous input, diversity species near Haihe River Estuary Jiyun was lower than central Bay, gelatinous Oikopleura dioica as dominant species. highest mouth affected intrusion, oceanic species, mainly copepods Corycaeus affinis, Calanus sinicus, Oithona similis, entered inner from mouth. Meanwhile, abundance summer significantly higher autumn. Compared historical data, has evolved arrow worm Sagitta crassa copepod Paracalanus parvus, probably due global warming, indicating effects human activities on succession community.