Phytoplankton community analysis in the Northern Adriatic

This data product is an R Shiny application that discloses the data collected by the National Institute of Oceanography and Experimental Geophysics (OGS) in the North Adriatic-Gulf of Trieste LTER. A time series has been built of observations on the species composition of the plankton. The application shows the evolution over time of abundance of major groups of species, as well as the most frequent species (or other taxonomic units) in the dataset. There is also a multivariate representation based on a PCA of abundances of the most frequent species, which shows the seasonal (monthly) fluctuations and the long-term (yearly) trend, and the contribution of each individual species to the temporal evolution of the community.

本数据产品为一款R Shiny应用，用于发布海洋学与实验地球物理学国家研究所（National Institute of Oceanography and Experimental Geophysics，OGS）在北亚得里亚海-的里雅斯特湾长期生态研究（Long Term Ecological Research，LTER）站点采集的观测数据。针对浮游生物物种组成的观测数据，已构建完整时间序列。该应用可展示数据集中主要物种类群的丰度随时间的演变情况，以及出现频次最高的物种（或其他分类单元）的动态变化。此外，应用还基于高频物种的丰度数据开展主成分分析（Principal Component Analysis，PCA），生成多变量可视化结果，可清晰呈现物种群落的季节（月度）波动、长期（年度）演化趋势，以及各单一物种对群落时间演变的贡献权重。