1. Multicellular Primary Producers
Seaweed, marine plants, seagrasses, salt marsh plants, mangroves

2. What is seaweed? Are Seaweeds plants?
No they are algae. Algae is a protist

3. What is algae? Algae are photosynthetic, like plants.
Algae are"simple" because their tissues are not organized into the many distinct types found in land plants.
Algae is either micro algae or macro algae
Macro algae is called “seaweed”
Macro algae
Micro algae
unicellular
multicellular

4. Structure of Seaweed Thallus
Lacks vascular tissue, roots, stems, leaves
Frond, or blade
Holdfast, NOT ROOTS
Stipe
Gas bladders

5. importance of algae

6. Importance of Algae
70% of foods, beverages, cosmetics, personal care, pet care, etc... items in an average shoppers cart have algae ingredients. Yummy……….
The cell wall of algae provides carrageenan:
Thickening agent used in our products: spirulena as a food

7. Algae good for people?????

8. Macroalgae “Seaweeds”
3 types of seaweed
Red
Brown
Green
Based on light capturing pigments: Red and Brown algae can thrive in deeper waters.

9. Algae is not always good for you
Long Island toxic algae
shellfish closing now open
Moviemaker Alfred Hitchcock appears to have drawn some inspiration for one of his classic thrillers, "The Birds," with the help of toxin-producing algae.

10. Reproduction of Algae
Asexual
Sexual: Reproduce through__________

11. Name that algae, Red, Green, Brown? Micro or Macro?

12. Name that algae, Red, Green, Brown? Micro or Macro?

13. Name that Algae Red, Green, Brown? Micro or Macro?
Background is a kelp forest

14. Name that Algae Red, Green, Brown? Micro or Macro?

15. What Criteria did you use to classify algae

16. Importance of Algae Take 5 minutes look through your notes: Class work

17. Marine Flowering Plants/different Algae
General characteristics they are just like land plants (angiosperms) they have:
Vascular tissue
Roots, stems, leaves
Seeds and fruits
Examples
Seagrass beds
Salt marshes
Mangrove forests
Mangrove forest in Florida Keyes

19. Seagrasses Maintain water clarity, trapping sediments with leaves.
They stabilize the bottom with their roots
They provide shelter for fish, shellfish.
manatees, urchins, conches and sea turtles, eat seagrass blades..

20. Eel Grass beds on Long Island

21. Salt Marsh Plants Marsh Plants Spartina alterniflora
Main marsh plant found On LI estuaries.
60% to 80 % of the commercial marine fisheries resources depend on estuaries for part of or all of their life cycle.

22. How does the water travel on Long Island
How does the water travel on Long Island? What is the importance of salt marshes?

23. Salt Marsh Plants
Once destroyed on Long Island as “waste” property to develop and build homes; now they are preserved. Why?
Long Island, Note preserved and
Unpreserved land
Stony Brook
Cedar Beach, Miller Place

24. Forests of the Tide
At the intersection of land and sea, mangrove forests support a wealth of life, from starfish to people, and may be more important to the health of the planet than we ever realized.

25. Mangrove video on mangroves

26. Characteristics 1. 2. 3. 4. 5.
Characteristcs