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1999年5月从哥特兰海盆、波罗的海本体北部和芬兰湾东部采集到的新-旧冰川沉积物中类胡萝卜素色素的分布情况进行了研究。其目的在于对最近几个世纪以来发生在波罗的海的蓝藻赤潮的发生时间及强度做出一个全面的、系统的、历史性的回顾。色素的存在是利用高压液相色谱(LPLC)来检测的,检测的主要重点是把色素作为蓝藻赤潮标志物。从三个采样点采集到的沉积物中的色素的含量有明显差异。总的来说,来自于哥特兰海盆的沉积样中色素的含量最高,而芬兰湾东部样品中的含量最低。在三组沉积样中的最上层(0～1cm)是以β-胡萝卜素为主的胡萝卜素。在岩心样品的深层以蓝藻叶黄素与玉米黄素为主。据我们所知,蓝藻叶黄素和玉米黄素是第一次在波罗的海滨海螺期(Litorina stage)早期的沉积物中被发现。这与沉积物深度相关的色素含量的减少与碳含量的减少是一致的,也和波罗的海蓝藻赤潮发生的强度和时间的历史记录相一致。这一切都表明,第二次世界大战之前在这里很少有蓝藻赤潮发生的记录。
In May 1999, the distribution of carotenoid pigments in the sediments of the new-old glaciers collected from the Gotland basin, north of the Baltic ontology and east of the Gulf of Finland was studied. Its purpose is to make a comprehensive, systematic and historical review of the timing and magnitude of the bloom of cyanobacteria occurring in the Baltic Sea in recent centuries. The presence of pigments is detected by high-pressure liquid chromatography (LPLC). The main focus of the test is the use of pigments as cyanobacteria red tide markers. There was a significant difference in the amount of pigment in the sediment collected from the three sampling points. In general, the Sedimentary samples from the Gotland Basin show the highest pigment content, while the eastern Gulf samples show the lowest content. The top three layers of sediment samples (0-1 cm) are carotene-based carotenoids. In the deep core samples, cyanobacterial lutein and zeaxanthin dominated. To the best of our knowledge, cyanobacterial lutein and zeaxanthin are found for the first time in early sediments of the Litorina stage of the Baltic Sea. This reduction in pigment content associated with sediment depth is consistent with a reduction in carbon content and is also consistent with the history of intensities and times of occurrence of red tides in the Baltic Sea. All this shows that few records of cyanobacteria red tides occurred here before World War II.