Characteristics of plankton community structure of polytrophic level culture model in seawater ponds in Zuidong Sea area,Luannan County
To explore the characteristics of plankton community structure of polytrophic level culture model in seawater ponds in the Zuidong sea area of Luannan County,and to optimize the aquaculture model and ecological regulation measures of seawater ponds,during the seawater ponds polytrophic level culture of"Takifugu rubripes-Fennero penaeus chinensis-Mercenaria mercenarias",water quality and physicochemical factors,species and quantity of plankton in polytrophic level breeding ponds were compared with those in Takifugu rubripes monoculture ponds.The results showed that,the water quality physicochemical factors of polytrophic level culture mode were better than those of the mono culture mode.In the case of phytoplankton,the species of phytoplankton were the same in both culture modes,the abundance of phytoplankton in polytrophic level culture mode was lower than that in monoculture mode,there was little difference in the dominant species of phyto-plankton.Bacillariophyta and pyrrophyta were dominant algae,and the dominance index was relative-ly low.In the case of zooplankton,the species of zooplankton were the same in both culture modes,the abundance of zooplankton in polytrophic level culture mode was lower than that in monoculture mode,there was little difference in the dominant species of zooplankton under different farming modes,arthropods and larval planktons were dominant zooplankton,and the dominance index was rel-atively low.
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万方数据
