Urban Riverfly

Riverfly Monitoring Initiative survey data for sites in the UK and Ireland includes total scores and individual group scores for each survey date. Data are collected by trained volunteers to a nationally recognised standard and compared to a trigger level. If scores fall below that trigger level, this is reported to the environmental regulator for investigation. The Urban Riverfly scheme expands the standard approach by using an extended list of aquatic invertebrates. Adding six additional groups to the original eight provides a more detailed understanding of environmental change, particularly in urban rivers where riverfly numbers are often lower. Volunteers upload their survey data to the Cartographer platform, where it is verified by local coordinators. Verified data is automatically pulled into this ArcGIS Online feature layer daily. Explore the full dataset and graphs at: https://riverflydata.org/ Riverflies are aquatic invertebrates that spend most of their life cycle in rivers, streams, ponds, or lakes. They play a vital role in freshwater ecosystems and the aquatic food chain. RMI focuses on three key groups: • Mayflies (Ephemeroptera) • Caddisflies / Sedges (Trichoptera) • Stoneflies (Plecoptera) Their limited mobility, relatively long life cycles, year-round presence, and sensitivity to environmental change make them excellent indicators of water quality, pollution, siltation, and low flows. Visit Riverfly Monitoring Initiative (RMI) to learn how citizen scientists help protect river health by monitoring riverfly populations.英国与爱尔兰地区各监测点位的Riverfly监测倡议（Riverfly Monitoring Initiative, RMI）调查数据，涵盖各调查日期的总得分与各分类组得分。数据由经过专业培训的志愿者按照国家认可的标准采集，并与预设触发阈值进行比对。若得分低于该触发阈值，则将上报至环境监管机构开展调查。 城市河蝇监测方案（Urban Riverfly scheme）对标准监测方法进行了拓展：通过扩充水生无脊椎动物的监测类别，在原有8个类别的基础上新增6个类别，以此实现对环境变化更精细化的解析，尤其适用于河蝇种群数量普遍偏低的城市河流。 志愿者将调查数据上传至Cartographer平台，由本地协调员完成审核。经审核通过的数据每日将自动同步至该ArcGIS Online要素图层。您可访问https://riverflydata.org/ 浏览完整数据集与相关图表。 河蝇（Riverflies）是一类生命周期大部分时段都栖息于河流、溪流、池塘或湖泊中的水生无脊椎动物。它们在淡水生态系统与水生食物链中发挥着至关重要的作用。 RMI重点关注三大关键类群： • 蜉蝣目（Ephemeroptera） • 毛翅目（Caddisflies/石蛾）（Trichoptera） • 襀翅目（Stoneflies/石蝇）（Plecoptera） 由于其活动能力有限、生命周期相对较长、全年均可被观测，且对环境变化极为敏感，河蝇成为了水质、污染、淤积与低流量状况的优质生物指示物。 请访问Riverfly监测倡议（RMI）官网，了解公民科学家如何通过监测河蝇种群助力河流健康保护。