IMIS

Here it is published as a standardized Darwin Core Archive and includes for each sampling event an eventID, date, location and sampling protocol (in the event core) and for each occurrence an occurrenceID, the number of recorded individuals, status (present/absent) and scientific name (in the occurrence extension). Issues with the dataset can be reported at https://github.com/inbo/data-publication/issues
We have released this dataset to the public domain under a Creative Commons Zero waiver. We would appreciate it if you follow the GBIF citation guidelines (https://www.gbif.org/citation-guidelines) when using the data. If you have any questions regarding this dataset, don't hesitate to contact us via the contact information provided in the metadata or via https://twitter.com/trias_project.
Currently only the invasive species in the Luronium natans survey are published in this dataset.
Vegetation recording is carried out during june-september for each site on different levels: * waterbody level: description of the waterbody, presence of macrophyte taxa in the waterbody * population of Luronium natans (data not provided) * permanent quadrant of 1 square meter in an abundant patch of Luronium natans (only recorded in 2008 & 2009; taxon occurrence and plot data (Braun Blanquet)