The European Multi Lake Survey (EMLS) dataset of physical, chemical, algal pigments and cyanotoxin parameters 2015.

The European Multi Lake Survey took place in summer 2015. It was a
grassroots initiative comprised 197 scientists from 26 European
countries. The EMLS was a snapshot sampling effort where 369 lakes
were sampled only once for various physical (e.g. temperature),
chemical (total nutrients) and biological parameters (algal pigments
and toxins). The sampling period for each region was defined as the
locally two-week warmest period based on 10-year air temperature data.
The initial purpose was to define how nutrients and temperature would
interact to explain variance in algal or cyanobacterial blooms on a
continental scale using a space for time substitution approach
(spatial rather than temporal resolution of lake parameters). Several
other scientific questions addressing what controls toxin distribution
on a continental scale, or dealing with cross comparisons between
algal numerical methods (microscopy vs pigments vs flowcytometry) are
in preparation. Publishing this dataset will allow scientific access
to a unique sampling effort over the European peninsula that can
generate new research ideas.