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1980—1981年在渤海90个测站上进行了浮游植物种类组成及数量变化、叶绿素含量、海面辐照度、海水光学参量以及海洋水文要素调查,还作了浮游植物光合作用率和同化系数的测定。绘出渤海水域各季节叶绿素a和初级生产力的平面分布图。 渤海水域表层叶绿素a的平均值春季、夏季、秋季和冬季分别为1.04,0.69,1.27和0.64毫克/米~3。初级生产力的测定采用叶绿素法。通过调查计算得出渤海初级生产力平均值:春季为357毫克碳/米~2·日;夏季为171毫克碳/米~2·日;秋季为305毫克碳/米~2·日;冬季为88毫克碳/米~2·日。渤海初级生产力的年平均量为90克碳/米~2·年。整个水域全年有机碳生产量约为800万吨。
Phytoplankton species composition and quantitative changes, chlorophyll content, sea surface irradiance, seawater optical parameters and ocean hydrological factors were investigated at 90 stations in the Bohai Sea from 1980 to 1981. Phytoplankton photosynthesis rates and assimilation coefficients Determination. Draw a plot of chlorophyll a and primary productivity in different seasons in the Bohai Sea. The average chlorophyll a in the Bohai Sea waters was 1.04, 0.69, 1.27 and 0.64 mg / m ~ 3 in spring, summer, autumn and winter, respectively. The determination of primary productivity using chlorophyll method. The average primary productivity in the Bohai Sea was calculated from the survey: 357 mg C m -2 day in spring, 171 mg C m -2 day in summer, 305 mg C m -2 day in autumn and 88% Mg / m ~ 2 · day The annual average primary productivity of the Bohai Sea is 90 grams of carbon per meter to 2 years of age. Organic carbon production throughout the year is about 8 million tons.