IISD Experimental Lakes Area LTER: Phytoplankton Abundance, Biomass, and Community Structure, 1969 – 2023

The IISD Experimental Lakes Area (IISD-ELA) LTER Phytoplankton Abundance, Biomass, and Community Structure data package provides data on phytoplankton from five long-term reference lakes (Lake 114, Lake 224, Lake 239, Lake 373, and Lake 442) in northwestern Ontario, Canada. The data package includes metadata and tabular data. Metadata include a lake information table (lake names, locations, morphometric data) and a PDF information sheet that describes the data package and includes methods, a data dictionary, and references. Tabular data include: phytoplankton biomass summarized at the Division (Cyanobacteria) or Class (chlorophyceae, euglenophyceae, chrysophyceae, bacillariophyceae, cryptophyceae, dinophyceae) level of taxonomic resolution ("Group"); phytoplankton abundance and biomass at the lowest level of taxonomic resolution (usually species level); phytoplankton species codes that act as a primary key linking the previous tables to current scientific names; and the phytoplankton trophic feeding type that partitions taxa into functional feeding groups (autotrophic, heterotrophic, mixotrophic). The data package is ongoing – updated data will be provided as data are collected from these long-term reference lakes in subsequent years. If data are not present for the lake you are interested in (e.g. if the lake was part of an experiment rather than a reference lake) please get in touch with us.

IISD实验湖区（IISD Experimental Lakes Area，简称IISD-ELA）长期生态研究（Long-Term Ecological Research, LTER）浮游植物（phytoplankton）丰度、生物量与群落结构数据集包，收录了加拿大安大略省西北部5个长期参考湖泊（114号湖、224号湖、239号湖、373号湖及442号湖）的浮游植物相关数据。本数据集包包含元数据（metadata）与表格数据两类内容：元数据部分涵盖湖泊信息表（含湖泊名称、地理位置、形态测量数据）及一份PDF说明文档，该文档对数据集包进行整体介绍，并包含研究方法、数据字典（data dictionary）与参考文献列表。表格数据部分包含：按分类阶元的“类群（"Group"）”级别汇总的浮游植物生物量，分类阶元覆盖蓝藻门（Cyanobacteria）或纲级类群，包括绿藻纲（Chlorophyceae）、裸藻纲（Euglenophyceae）、金藻纲（Chrysophyceae）、硅藻纲（Bacillariophyceae）、隐藻纲（Cryptophyceae）、甲藻纲（Dinophyceae）；最低分类阶元（通常为物种级）下的浮游植物丰度与生物量数据；作为主键（primary key）的浮游植物物种编码，用于关联前述表格与当前科学学名；以及可将类群划分为三大营养功能群的浮游植物营养摄食类型数据，分别为自养型（autotrophic）、异养型（heterotrophic）与混养型（mixotrophic）。本数据集包为持续更新项目，后续年份从上述长期参考湖泊收集的新增数据将同步发布更新。若您所需的湖泊无对应数据（例如该湖曾为实验用湖而非参考湖），请与我们取得联系。