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Table 2 Input and output matrices for the CHEMTAX-oriented analysis from 21 July 1997 to 18 August 1997. A dinoflagellate bloom was strongly dominated by Karenia mikimotoi (formerly Gyrodinium aureolum) (>90% of the carbon) and required a special initial marker pigments-Chl a ratio matrix for this period because its pigment composition differs from the normal pigment composition of dinoflagellates (peridinin as a marker carotenoid; Wright and Jeffrey 1997). K. mikimotoi has 19′-hexanoyloxyfucoxanthin and fucoxanthin instead of peridinin (Johnsen and Sakshaug 1993). Per Peridinin, but 19’-butanoyloxyfucoxanthin, fuco fucoxanthin, hex 19’-hexanoyloxyfucoxanthin, ddx diadinoxanthin, all alloxanthin, zea zeaxanthin, lut lutein

From: Using HPLC pigment analysis to investigate phytoplankton taxonomy: the importance of knowing your species

Phytoplankton group

Pigments

Chl c 1 +c 2

Chl c 3

fuco

hex

ddx

allo

zea

lut

Chl b

Input matrix

Dinoflagellates

0.210

0.130

0.350

0.130

0.076

0.000

0.000

0.000

0.000

Diatoms

0.084

0.000

0.500

0.000

0.240

0.000

0.000

0.000

0.000

Cryptophytes

0.060

0.000

0.000

0.000

0.000

0.300

0.000

0.000

0.000

Chlorophytes

0.000

0.000

0.000

0.000

0.000

0.000

0.118

0.220

0.569

Cyanobacteria

0.000

0.000

0.000

0.000

0.000

0.000

1.500

0.000

0.000

Output matrix

Dinoflagellates

0.109

0.188

0.199

0.081

0.030

0.000

0.000

0.000

0.000

Diatoms

0.084

0.000

0.500

0.000

0.203

0.000

0.000

0.000

0.000

Cryptophytes

0.060

0.000

0.000

0.000

0.000

0.300

0.000

0.000

0.000

Chlorophytes

0.000

0.000

0.000

0.000

0.000

0.000

0.094

0.163

1.041

Cyanobacteria

0.000

0.000

0.000

0.000

0.000

0.000

1.500

0.000

0.000