Algae kelp forest. Algae Kingdom Protista Eukaryotic with chloroplasts - autotrophic some are...
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Transcript of Algae kelp forest. Algae Kingdom Protista Eukaryotic with chloroplasts - autotrophic some are...
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Algae
kelp forest
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Algae
Kingdom ProtistaEukaryotic with chloroplasts - autotrophic some are
unicellular
Multicellular algae are popularly called seaweeds (not plants). No leaves, stems, roots, or flowers.
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Thallus: the complete bodyBlades - leaf like, no veinsPneumatocysts – air bladder - gas filled bladder-keeps
blade near light. May contain carbon monoxide or other toxic gas.
Stipe - stem likeHoldfast - looks like root but does not absorb food or
H2O. Well developed in kelp.
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3 types of Seaweed:
1. Green algae – phylum Chlorophyta about 10% are marine Coralline green algae - contains calcium, helps build coral reef. This is dead man’s fingers green algae
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2. Brown algae – Phaeophyta -15,000 species are all marineKelpsfood source for many people - sushi, seaweed
Macrocytis - common type found in kelp beds or forestsHabitat for many organisms
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3. Red algae - Phylum Rhodophyta 4,000 species; mostly marine
Red color, significant human uses.Some are parasitic and derive all nutrients from the
host.Encrusting coralline red algae helps build coral reefs.
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corallina, a coralline red algae
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Uses of Algae
• Eastern cultures commonly use for food• Western cultures extract polysaccharides
thickening, emulsifying and gel. Undigestible, adds bulk to digestive system
Carrageenan, algin, agar, alginate• Some brown kelp, Macrocystis can grow a foot a
day• Harvested like wheat for human uses.
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Kelp harvesting ship based out of San Diego
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Powdered kelp
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-bakery icings cleaners-cooked/instant pudding agar for microbiology-candies laxatives-fruit juices capsules and tablets-jams and jellies lotions and creams-salad dressings shampoos-whipped toppings toothpaste-milk shakes pastry filling-chocolate milk adhesives -cheeses syrups -cottage cheese explosives-ice cream
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There are some marine plants that contribute to primary production: like these sea grasses that are true plants.
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surf grass
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True plants that live on tropical ocean shores
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Monera, Protista, and Plantae are all marine producers with Protista contributing the most.