Dataset Overview

Density, biovolume, and/or biomass of phytoplankton taxa and their morpho-functional trait (MFG) and competitive, stress-tolerant, and ruderal strategist (CSR) classifications for Acton Lake at the Outflow approximately every two weeks. See QAQC Notes for details and also the PhytoMetaData file (if available).

See Full Dataset Documentation


Please see GEISHA Project home page on FEMC website at or see the GEISHA website hosted by INRAE at

Data Collection Status

Data collection for this dataset has been completed

Start date


End date



25970 records with 16 fields

Data Availability

Available for download

Data License

CC BY - Attribution license logo

Preferred Citation

Stockwell JD, Brentrup JA, Doubek JP, Gonzalez MJ, Hayes N, Patil VP, Vanni MJ, Williamson TJ (2020) Acton Lake raw phytoplankton data, 1992-2012. Global Evaluation of the Impacts of Storms on freshwater Habitat and structure of phytoplankton Assemblages (GEISHA) Working Group, FRB Centre for the Synthesis and Analysis of Biodiversity and USGS John Wesley Powell Center. Available online at:

Update Frequency

As needed

Maintenance Plan

Not provided


No links available for this dataset

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Previous Versions
    • Version 6 - 15Mar2021 (created 2021-03-15 by Jason Stockwell)
    • Version 5 - 01Sep2020_V2 (created 2020-09-16 by John Truong)
    • Version 4 - 01Sep2020 (created 2020-09-11 by John Truong)
    • Version 3 - 11Aug2020 (created 2020-09-11 by John Truong)
    • Version 2 - 11Aug2020 (created 2020-09-01 by John Truong)