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The U.S. government is closed. This site will not be updated; however, NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit commerce.gov

For the latest forecasts and critical weather information, visit weather.gov.

PMN Data

Over 11 years of phytoplankton data from the NOAA Phytoplankton Monitoring Network. Data from the New Hampshire Volunteer Phytoplankton Monitoring Program and Washington SoundToxins Program is included.

black and white scanning electron microscope image of Scrippsiella Spp

Enter Data

Visit the links below to enter marine or freshwater phytoplankton data.

Access Data

On-line web server of phytoplankton data from around the network. Query and download datasets in common file formats and make simple graphs.

Data Map

On-line data map of phytoplankton from around the network. Change map views by selecting specific time frames, species, or water conditions such as water temperature or salinity.

Archived Data

Download Biological, chemical, and physical data from the Phytoplankton Monitoring Network from 13 Sep 2001 to 7 Mar 2013 (NODC Accession 0117942)