Chlorophyll a was extracted by incubating the frozen 934-AH filters with culture material in 13 mL of 95% ethanol at 4°C for about 24 h (Jespersen and Christoffersen, 1987).
Chlorophyll a was extracted by incubating the frozen 934-AH filters with culture material in 13 mL of 95% ethanol at 4°C for about 24 h (Jespersen and Christoffersen, 1987).