Sampling, Biomass Estimation and Counts of Freshwater Algae - Freshwater Algae: Identification, Enumeration and Use as Bioindicators - page 61

HPLC analysis of major
phytoplankton groups

TOTAL Phytoplankton

Chlorophyll- a

Chlorophyll- b Chlorophytes

Alloxanthin Cryptomonads

Fucoxanthin Diatoms

Peridinin Dinolagellates

Zeaxanthin Blue-green algae

CHEMTAX©
Analysis

Chlorophytes
Cryptophytes
Diatoms
Dinoflagellates
Blue-greens
Others

TOTAL
BIOMASS
(chl- a )

Phytoplankton
community

Figure 2.11 Phytoplankton community analysis based on HPLC separation and quantification of diagnostic pigments
using the CHEMTAX © matrix factorisation programme. The phytoplankton pie chart shows a hypothetical population
dominated by dinoflagellates and cryptophytes. Figure redrawn and adapted from Paerl et al ., 2005.