Abstract

The long-term (2001–2020) data of the primary production and abundance of phytoplankton (according to the concentration of chlorophyll a) in the Vistula Lagoon under significant ecosystem changes have been analyzed. The long-term dynamics is characterized by an increase in primary production to a hypertrophic level (>450 g C/(m² year) in 2006–2010. After the intensive development of the bivalve filter-feeding mollusk Rangia cuneata, the primary production in 2011–2020 remained at the hypertrophic level, despite significant changes in the structure and abundance of phytoplankton. Average annual primary production in 2001–2020 was 60% higher than in 1974–1976. Primary production exceeds the mineralization of organic matter in water by 60%, which leads to the secondary eutrophication of the Vistula Lagoon and pollution of the Baltic Sea.

中文翻译：

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波罗的海维斯瓦泻湖生态系统浮游植物初级生产的长期变化

摘要

分析了重大生态系统变化下维斯瓦泻湖初级生产和浮游植物丰度（根据叶绿素a浓度）的长期（2001-2020）数据。长期动态的特点是初级产量在 2006-2010 年增加到肥厚水平（>450 g C/（m ²年））。在双壳类滤食性软体动物Rangia cuneata 的密集发展之后，初级产量尽管浮游植物的结构和丰度发生了显着变化，但 2011-2020 年仍处于肥厚水平。2001-2020 年平均初级生产力比 1974-1976 年高 60%。初级生产力超过水中有机物的矿化60%，导致维斯瓦泻湖二次富营养化和波罗的海污染。