Behavior of natural fluorescence in Sagami Bay and Tokyo Bay, Japan — vertical and lateral distributions
Behavior of natural fluorescence in Sagami Bay and Tokyo Bay, Japan — vertical and lateral distributions
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日本相模湾和东京湾的天然荧光行为——垂直和横向分布
DOI：
10.1016/0304-4203(87)90077-6
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发表时间：
1987
期刊：
影响因子：
3
通讯作者：
H. Tsubota
中科院分区：
文献类型：
--
作者：
K. Hayase;Makoto Yamamoto;Izumi Nakazawa;H. Tsubota
对日本相模湾某地点天然荧光的垂直分布进行了研究。天然荧光在表层海水中值较低，随深度增加而增加。天然荧光与磷酸盐、硝酸盐等营养物呈线性关系。这表明，由海洋腐殖质产生的天然荧光可能与水柱中的磷酸盐和硝酸盐的行为方式相似。在日本东京湾的几个地点，发现了盐度与自然荧光呈负斜率的线性关系。这表明该地区的天然荧光来自陆生腐殖质，主要通过水团的混合分散。东京湾海水的荧光和吸收光谱显示出与东京湾沉积黄腐酸相似的光谱。东京湾海水样品的荧光/吸光度比值基本不变。
The vertical distribution of natural fluorescence was investigated at one location in Sagami Bay, Japan. Natural fluorescence showed low values in surface seawater, increasing with depth. Linear relations were observed between natural fluorescence and nutrients, such as phosphate and nitrate. It is suggested that natural fluorescence resulting from marine humic substances can behave in a manner similar to phosphate and nitrate in the water column.Linear relations with negative slopes were found between salinity and natural fluorescence at several locations in Tokyo Bay, Japan. This indicates that natural fluorescence in this area results from terrestrial humic substances and is dispersed mainly by mixing of water masses. Fluorescence and absorption spectra of the seawater in Tokyo Bay showed spectra similar to sedimentary fulvic acid from Tokyo Bay. Fluorescence/absorbance ratios were nearly constant for the seawater samples in Tokyo Bay.