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<p>Seasonal succession of zooplankton communities has been the subject of numerous studies. However, these studies have primarily addressed pelagic communities. In the littoral zone, higher aquatic vegetation acts as a powerful habitat-forming factor that determines the structure and distribution of zooplankton. We analyzed the course of seasonal succession of zooplankton communities in different types of macrophyte stands and at the edge of stands in the littoral zone of a floodplain lake and a small watercourse. In spring, when macrophytes were absent from the biotopes of submerged plants, and in late October, when they had virtually disappeared, the species structure of zooplankton communities exhibited high similarity. This finding indicates the cyclical nature of seasonal succession in zooplankton communities. During the period of active growth, morphologically diverse macrophytes created a gradient of environmental conditions and zooplankton communities across the littoral zone in the form of an ecocline. The formation of this ecocline in littoral zooplankton communities was a transient phenomenon, governed by the environmental heterogeneity generated by macrophytes. The spring period in all biotopes was characterized by pronounced fluctuations in the abundance of individual rotifer species. The colonization of biotopes by macrophytes led to the dominance of cladocerans with longer life cycles, thereby enhancing the temporal stability of planktonic assemblages. The reorganization of zooplankton community structure and the formation of planktonic assemblages were associated with changes in macrophyte composition and the degree of cover within the biotope. The most distinct succession of planktonic assemblages was observed in&#xa0;Elodea&#xa0;stands, where the dominant macrophyte species did not change over the season. The obtained data on the influence of macrophytes on the seasonal succession of zooplankton can be used for the effective management of aquatic ecosystems and the planning of conservation measures in shallow coastal systems.</p>

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Macrophytes as drivers of seasonal succession of zooplankton communities in the littoral zone of shallow lakes and small watercourses

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Dmitry Gavrilko,
  • Viktor Bubnov,
  • Alexandr Sarapkin

摘要

Seasonal succession of zooplankton communities has been the subject of numerous studies. However, these studies have primarily addressed pelagic communities. In the littoral zone, higher aquatic vegetation acts as a powerful habitat-forming factor that determines the structure and distribution of zooplankton. We analyzed the course of seasonal succession of zooplankton communities in different types of macrophyte stands and at the edge of stands in the littoral zone of a floodplain lake and a small watercourse. In spring, when macrophytes were absent from the biotopes of submerged plants, and in late October, when they had virtually disappeared, the species structure of zooplankton communities exhibited high similarity. This finding indicates the cyclical nature of seasonal succession in zooplankton communities. During the period of active growth, morphologically diverse macrophytes created a gradient of environmental conditions and zooplankton communities across the littoral zone in the form of an ecocline. The formation of this ecocline in littoral zooplankton communities was a transient phenomenon, governed by the environmental heterogeneity generated by macrophytes. The spring period in all biotopes was characterized by pronounced fluctuations in the abundance of individual rotifer species. The colonization of biotopes by macrophytes led to the dominance of cladocerans with longer life cycles, thereby enhancing the temporal stability of planktonic assemblages. The reorganization of zooplankton community structure and the formation of planktonic assemblages were associated with changes in macrophyte composition and the degree of cover within the biotope. The most distinct succession of planktonic assemblages was observed in Elodea stands, where the dominant macrophyte species did not change over the season. The obtained data on the influence of macrophytes on the seasonal succession of zooplankton can be used for the effective management of aquatic ecosystems and the planning of conservation measures in shallow coastal systems.