Macrophytes, comprising aquatic vascular plants, bryophytes, and macroalgae, including charophytes, are crucial components of lake ecosystems. Their diversity affects ecosystem functions and services, and they are sensitive to environmental changes, making them effective indicators of lake health. Historical records of macrophyte species composition are essential for evaluating environmental changes and conservation goals. In this study, we compiled a comprehensive database of macrophytes, along with lake and survey information from the literature, providing a historical record of macrophyte biodiversity for lakes in Japan. This database enables the analysis of changes in the flora of Japanese lakes and fluctuations in species distribution, facilitating future monitoring. The complete dataset for this abstract published in the Data Article section of the journal is available in MetaCat in JaLTER at http://db.cger.nies.go.jp/JaLTER/metacat/metacat/ERDP-2024-02.1/jalter-en.

中文翻译：

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日本湖泊水生植物数据库

大型植物，包括水生维管植物、苔藓植物和大型藻类，包括轮藻类，是湖泊生态系统的重要组成部分。它们的多样性影响生态系统功能和服务，并且对环境变化敏感，使其成为湖泊健康的有效指标。大型植物物种组成的历史记录对于评估环境变化和保护目标至关重要。在这项研究中，我们编制了一个综合的大型植物数据库，以及文献中的湖泊和调查信息，提供了日本湖泊大型植物生物多样性的历史记录。该数据库可以分析日本湖泊植物区系的变化和物种分布的波动，为未来的监测提供便利。发表在期刊数据文章部分的此摘要的完整数据集可在 JaLTER 的 MetaCat 中找到，网址为：http://db.cger.nies.go.jp/JaLTER/metacat/metacat/ERDP-2024-02.1/jalter-en。