Macrophytes and phytoplankton are recognized as having roles in determining alternative stable states in shallow lakes and reservoirs, while the role of periphyton has been poorly investigated. Temporal and spatial variation of phytoplankton, epipelon and epiphyton was examined in a shallow reservoir with high abundance of aquatic macrophytes. The relationships between algae communities and abiotic factors, macrophyte coverage and zooplankton density were also analyzed. Monthly sampling was performed in three zones of the depth gradient of the reservoir. Two phases of algal dominance were found: a phytoplankton phase and epipelon phase. The phase of phytoplankton dominance was characterized by high macrophyte coverage. Rotifera was the dominant zooplankton group in all the zones. Flagellate algae were dominant in phytoplankton, epipelon and epiphyton. Macrophyte coverage was found to be a predictor for algal biomass. Changes in biomass and species composition were associated with macrophyte cover variation, mainly the Nymphaea. In addition to the abiotic factors, the macrophyte coverage was a determining factor for changes to the algal community, contributing to the alternation between dominance phases of phytoplankton and epipelon. The macrophyte–phytoplankton–periphyton relationship needs to be further known in shallow reservoirs, especially the role of epipelon as an alternate stable state.

中文翻译：

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睡莲覆盖率高的浅层热带水库两​​个湖沼相中表皮、附生和浮游植物的关系

大型植物和浮游植物被认为在确定浅湖和水库中的替代稳定状态方面具有重要作用，而周围植物的作用却鲜有研究。在水生大型植物丰度高的浅水库中检查了浮游植物、附生植物和附生植物的时空变化。还分析了藻类群落与非生物因素、大型植物覆盖率和浮游动物密度之间的关系。每月在储层深度梯度的三个区域进行采样。发现了藻类优势的两个阶段：浮游植物阶段和表皮层阶段。浮游植物优势阶段的特点是大型植物覆盖率高。轮虫是所有区域的主要浮游动物群。鞭毛藻在浮游植物中占优势，附生植物和附生植物。发现大型植物覆盖率是藻类生物量的预测因子。生物量和物种组成的变化与大型植物覆盖变化有关，主要是睡莲。除了非生物因素外，大型植物覆盖是藻类群落变化的决定性因素，有助于浮游植物和外皮优势阶段之间的交替。大型植物-浮游植物-附生生物在浅水库中的关系需要进一步了解，尤其是外皮作为替代稳定状态的作用。大型植物的覆盖是藻类群落变化的决定性因素，有助于浮游植物和表皮生物的优势阶段之间的交替。大型植物-浮游植物-附生生物在浅水库中的关系需要进一步了解，特别是外皮作为替代稳定状态的作用。大型植物的覆盖是藻类群落变化的决定性因素，有助于浮游植物和表皮生物的优势阶段之间的交替。大型植物-浮游植物-附生生物在浅水库中的关系需要进一步了解，特别是外皮作为替代稳定状态的作用。