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Light Absorption by phytoplankton and Detritus in the Black Sea in Spring

机译：春季黑海中浮游植物和碎屑的光吸收

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摘要

The spectra of light absorption by the suspended matter, phytoplankton, and detritus in the central and coastal parts of the Black Sea over the spring period (March-April 1995) were determined. A vertical homogeneity of the upper 40-m layer with respect to the parameters studies was noted. The value of the light absorption by phytoplankton normalized with respect to chlorophyll a was virtually independent of the chlorophyll a concentration. A linear relationship between the light absorption by phytoplankton and the chlorophyll a concentration was established at the red spectral maximum; it is described by the equation y=0.0153x (R~2=0.61). The ratio of the absorption values in the peaks was 2.29 on the average. The contribution of detritus to the total light absorption at a wavelength of 440 nm comprised 23-62% regardless of the depth and chlorophyll a concentration.
机译：确定了春季（黑山，1995年4月至4月）黑海中部和沿海地区悬浮物，浮游植物和碎屑的光吸收光谱。注意到相对于参数研究，上部40 m层的垂直均匀性。相对于叶绿素a归一化的浮游植物的光吸收值实际上与叶绿素a浓度无关。在红色光谱最大值处，浮游植物的光吸收与叶绿素a浓度之间存在线性关系。它由等式y = 0.0153x（R〜2 = 0.61）描述。峰中吸收值的比平均为2.29。无论深度和叶绿素a浓度如何，碎屑对440 nm波长的总光吸收的贡献为23-62％。

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