黄河河南段夏季浮游生物群落结构特征

Community structure of plankton in Henan of the Yellow River in Summer

2020年5—6月对黄河河南浮游生物群落组成进行了调查,结果表明:该河段浮游植物6门80种(属),密度为范围为95.6×10^(4)~6.8×10^(4) cell/L,浮游植物密度以硅藻门占优势,绿藻门次之;生物量范围为0.113~3.095 mg/L;浮游动物共检出3门29种(属),密度范围为116.4~325.5 ind./L,调查区域内以轮虫密度占优势;生物量范围为0.023~2.009 mg/L。

The plankton community composition were investigated in Yellow Rive of Henan section from June to July in 2020.The results showed that:80 species(genera),6 phylum of phytoplankton were observed in Yellow Rive of Henan.The density of phytoplankton was 95.6×10^(4)~6.8×10^(4) cell·L^(-1),the biomass was 0.113~3.095 mg/L.29 species(genera),3 phylum of zooplankton were observed in Yellow Rive of Henan.The density of zooplankton was 116.4~325.5 ind.·L^(-1),the biomass was 0.023~2.009 mg·L^(-1).