North Temperate Lakes LTER: Macrophyte Biomass in Trout Lake Summary 1983 - current

These data are collected to document and characterize the submersed macrophytes of Trout Lake, to evaluate the long-term stability of this component, and to interface with investigations of other compartments of the ecosystem. Four sites along the shoreline of Trout Lake have been sampled annually in August along permanent line transects. This dataset includes biomass per m2 for individual species summarized by depth along the transect. Derived data include the mean and standard deviation of macrophyte biomass. These data are useful in determining the annual variability of the submersed macrophytes and providing information on the effects of the invasion of an introduced crayfish. Sampling Frequency: annually during summer Number of sites: 4

本数据集旨在记录并表征特劳特湖（Trout Lake）的沉水植物（submersed macrophytes），评估该生态组分的长期稳定性，并与该生态系统其他组分的调查研究开展对接。沿特劳特湖湖岸布设的4个采样点，每年8月沿固定样线进行采样。本数据集包含沿样线按水深分层汇总的各物种种均每平方米生物量，衍生数据涵盖沉水植物生物量的均值与标准差。该数据集可用于分析沉水植物的年际变化，并为评估外来螯虾入侵的影响提供数据支撑。采样频率：每年夏季一次；采样点位数量：4个