Algae Preview: Investigating the needs, diversity, and uses

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Presentation transcript:

Algae Preview: Investigating the needs, diversity, and uses

Algae (aka Phytoplankton) Basics “Phyton” – plant “Planktos” - wanderer Aquatic Freshwater Marine Estuaries Photoautotroph Make their own energy From the sunlight Cannot be seen by the naked eye

Living Requirements PO-4 Si H2O External Factors Temperature Sunlight Amount (Cloudy v. Clear Day) Influences pH Competitors/Predators

Ecological Importance Primary Producer Over 50% O2 Production Staple for all aquatic food webs Ecological Threats Climate Change = Warmer Ocean Temperatures Decrease in ocean density by 40% since 1950 (Nature)

Diversity! Anabaena: cyanobacteria, heterocyst Palmodictyon: colonial, sheath Eudorina: 32-cell ball, all flagella point out Dinobryon: Golden algae, “fishey” blooms

Diversity! Scenedesmus: 4 cell colony, spines Cyclotella: circular diatom, looks like a tire Pediastrum: colonial, “lace” Coccolithophores: calcium carbonate “shell”

Diversity! Microcystis: Blue green, Gull Lake cyano Peridinium: dinoflagellate, “egg with a belt”

What’s Next!? Head to Gull Lake and the Lagoon to sample Come back and ID common Michigan Species Biofuel Preview Game Time: Day In A Phytoplankton’s “Shoes”