Distribution and abundance of algae

1. Distribution, A bundance, and Recent trends of Algae in General Prepared by: NOE P. MENDEZ CENTRAL MINDANAO UNIVERSITY (CMU) [email protected]

2. Key Points: Distribution Abundance Recent Trends

3. distribution Fairly well studied Floristic discontinuities caused by geographical features Algal Collection (US National Herbarium) – 320,500 specimens UK Biodiversity – 20,000 algal species Hydroclathrus Sargassum Dictyota Spatoglossum

4. 5,000-5,500 species of red algae worldwide (Australian seas) 100 seaweed species (Western coastline of South Africa) 212 species ( Kwazulu -South Africa)

5. Distribution of K appaphycus spp. in Hawaiian Island

6. Distribution of algae in Massachusetts Bay

7. Distribution of Cyanobacteria across the world (2012)

8. Abundance Algae are able to live in various conditions It’s abundance varies Known to require specific chemical & physical conditions (Prescott, 1968) Green algae is the most abundant Dominate primarily in production (photosynthetic) Seabed Substrate Rocks

9. Recent Trends Agar – medium for growing bacteria Alginate – for gelling agents in food, medical, & dressing Energy source – produce fuel (produce more biomass) Fertilizer – for aquaculture & soil conditioner Food (nutrition) – source of food especially in Asia (A, B1, B2, B6, iodine, iron, etc.)

10. Pigments – used as chemical dyes & coloring agents Stabilizing substances – Carrageenan (red alga) used for stabilizer in milk products

11. Agar Alginate

12. Medical purposes Cosmetics

13. Energy source

14. Fertilizer

15. Food

16. Pigments

17. Stabilizing substance

18. THE END.. THANK YOU 