High-Performance Liquid Chromatography (HPLC) and bio-optical data

AMT scientists have developed a conceptual model which describes how the phytoplankton community structure changes as total phytoplankton biomass (as indicated by chlorophyll concentration) changes. The model was developed using High Performance Liquid Chromatography (HPLC) and bio-optical data collected on AMT transects.
 

The findings have then been extrapolated to the global ocean using satellite Earth observation and it is envisaged that future applications will include validating multi-plankton biogeochemical models and improving primary-production estimates by accounting for community composition.


 
  • Phytoplankton size class percentages calculated according to the three-component model from a monthly SeaWiFS composite. Light grey refers to unidentified pixels either due to cloud coverage or high sun zenith angles. White pixels represent coastal and inland waters (<200 m depth) in order to eliminate areas where the algorithm has been found to overestimate chlorophyll.
    Phytoplankton size class percentages calculated according to the three-component model from a monthly SeaWiFS composite. Light grey refers to unidentified pixels either due to cloud coverage or high sun zenith angles. White pixels represent coastal and inland waters (<200 m depth) in order to eliminate areas where the algorithm has been found to overestimate chlorophyll.

Related Information

Brewin, R.J.W., Sathyendranath, S., Hirata, T., Lavender, S., Barciela, R.M., & Hardman- Mountford, N.J. (2010). A three-component model of phytoplankton size class for the Atlantic Ocean. Ecological Modelling 221, 1472-1483.


Author

Dr Bob Brewin

Dr Bob Brewin

Ocean Colour Climate Change Initiative Scientist