Common types of algae and their pigments:

 Common types of algae and their pigments:

1. Green Algae (Chlorophyta)
    - Pigments: Chlorophyll a, Chlorophyll b, Carotenoids (e.g., beta-carotene)

2. Red Algae (Rhodophyta)
    - Pigments: Chlorophyll a, Phycoerythrin, Phycocyanin

3. Brown Algae (Phaeophyceae)
    - Pigments: Chlorophyll a, Chlorophyll c, Fucoxanthin

4. Yellow-Green Algae (Xanthophyceae)
    - Pigments: Chlorophyll a, Chlorophyll c, Xanthophylls

5. Blue-Green Algae (Cyanophyceae)
    - Pigments: Chlorophyll a, Phycocyanin, Phycoerythrin

6. Diatoms (Bacillariophyceae)
    - Pigments: Chlorophyll a, Chlorophyll c, Fucoxanthin