Subject	Aquatic Science
Type of data	Table Image
How data were acquired	Compositional analysis by microscopy of Lugol's iodine-preserved samples. ELISA-based toxin analysis using microcystins-ADDA polyclonal antibody – enhanced ELISA kit (Product No. 520,011, Abraxis, Warminster, PA, USA) and anatoxin-a ELISA Microtiter Plate Kit (Product No. 520,060, Abraxis) Toxin analysis by LC-MS (Xevo G2-XS QTof MS, Waters Corp., Milford, MA, USA)
Data source location	City/Town/Region: Ontario Country: Canada Name of Body of Water: Thames River Latitude and longitude (and GPS coordinates) for collected samples/data: Station MECP 26 (ECCC ON02GE0006 [T2]): 42.31714; −82.44847 Station MECP 32 (ECCC ON02GE1005 [JR]): 42.35453; −82.321 Station MECP 35 (ECCC ON02GE9007 [CA]): 42.39289; −82.21069 Station MECP 36 (LTVCA): 42.406603; −82.185703 Station MECP 39 (ECCC ON02GE1000 [TT]): 42.545; −81.968 Sampling conducted from bridges over the river at approximately mid-stream and with samples acquired from 0–1 m depth. Physico-chemical parameters measured using a model 600QS sonde (YSI Inc., Yellow Springs, OH, USA). Daily samples were collected using autosamplers (Teledyne ISCO, Lincoln, NE, USA) located at the Thames River mouth (ECCC ON02GE0006) and Thamesville, ON (ECCC ON02GE1000) with samples collected at 8 h intervals.
Data format	Raw Analyzed
Identification	Whole water samples preserved with Lugol's iodine were analyzed by counting phytoplankton in a measured aliquot using a modified inverted microscope for the Utermöhl method.
Strain Characteristics	N/A
Data accessibility	Repository name: Mendeley Data Direct URL to data: http://doi.org/10.17632/85gy8ct4yn.3