distribution and abundance of algae
TRANSCRIPT
Distribution, Abundance, and Recent trends of Algae in General
Prepared by:
NOE P. MENDEZCENTRAL MINDANAO UNIVERSITY (CMU)
Key Points: Distribution
Abundance
Recent Trends
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
5,000-5,500 species of red algae worldwide (Australian seas) 100 seaweed species (Western coastline of South Africa) 212 species (Kwazulu-South Africa)
Distribution of Kappaphycus spp. in Hawaiian Island
Distribution of algae in Massachusetts Bay
Distribution of Cyanobacteria across the world (2012)
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
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.)
Pigments – used as chemical dyes & coloring agents
Stabilizing substances – Carrageenan (red alga) used for stabilizer in milk products
Agar
Alginate
Medical purposes
Cosmetics
Energy source
Fertilizer
Food
Pigments
Stabilizing substance
THE END.. THANK YOU