The SeaFlow Research Group

We combine observational technologies and statistical approaches to understand how phytoplankton respond to our changing planet and shape the future of marine ecosystems.

High-Resolution Ocean Observations

SeaFlow, our custom-built automated flow cytometer that continuously samples marine phytoplankton, has collected over 800 billion single-cell observations across ocean basins equivalent to six circumnavigations.

Meet the Instrument

Computational Tools and Statistical Analysis

Our computational and statistical methods use SeaFlow data to understand how environmental factors influence phytoplankton growth and mortality, shaping community structure and carbon cycling.

Open-source Software

Latest News

You can purchase or rent SeaFlow for your research cruises and contact us to discuss your research needs and join the SeaFlow community.

Meet the Instrument →

Latest Articles

Shifts in phytoplankton community structure across oceanic boundaries

Phytoplankton communities play an important role in marine food webs and biogeochemical cycles. The transition zones between ocean …

Jordan Winter, Annette Hynes, Chris Berthiaume, Kelsy Cain, E. Virginia Armbrust, François Ribalet

Shifts in phytoplankton community structure across oceanic boundaries

Amplicon sequencing with internal standards yields accurate picocyanobacteria cell abundances as validated with flow cytometry

Marine microbial ecologists seek measurements of organismal abundance and diversity at high taxonomic resolution to understand …

Alex Jones-Kellett, Ra E, Jesse C McNichol, Yubin Raut, Kelsy R Cain, Francois Ribalet, E Virginia Armbrust, Michael J Follows, Jed a Fuhrman

Amplicon sequencing with internal standards yields accurate picocyanobacteria cell abundances as validated with flow cytometry

High-frequency sampling captures variability in phytoplankton population-specific periodicity, growth, and productivity

The Hawaii Ocean Time-series (HOT) at Station ALOHA (22.75°N, 158°W) in the North Pacific Subtropical Gyre (NPSG) serves as a critical …

Annette M. Hynes, Jordan Winter, Chris T. Berthiaume, Eric Shimabukuro, Kelsy Cain, Angelicque White, E. Virginia Armbrust, Francois Ribalet

High-frequency sampling captures variability in phytoplankton population-specific periodicity, growth, and productivity

See all publications