Got Limu? Uses for Algae in Hawaii

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Got Limu?Uses for Algae in Hawaii.and Beyond!

• Heather Spalding
• UH Manoa GK-12 Program
• Hui Malama Learning Center

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What is algae, anyway?
YES!

• Is it pond scum?
• Is it that slimy green stuff on the inside of
  your tanks?
• Is it seaweed?
• Is it limu?
• Is it ogo?
• Is it nori?
• Is it phytoplankton?
• Is it a plant?

YES!
YES!
YES!
YES!
YES!
YES!
NO!
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Three main divisions of marine algae in Kingdom
Protista

• Chlorophyta green algae
• Rhodophyta red algae
• Phaeophyta brown algae

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Range in size from tiny microscopic life to giant
ocean kelps over a hundred feet long!
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Psycho Phycos

• phykos Greek for alga
• Phycology study of algae
• Phycologist someone who studies algae

• Every Phycologists Pet Peeve
• Alga is singular
• Algae is plural
• Algaes do not exist!!!

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Halimeda meadows form important habitat
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Algae is used for many purposes

• Fertilizer
• Food for humans and animals
• Hawaiiian cultural practices
• Extracted products
• potash
• algin
• carrageenan
• agar

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Most common algae used for food worldwide

• Porphyra (nori)
• Gracilaria (ogo)
• Rhodymenia (dulse)
• Chondrus crispus (Irish moss)

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Porphyra (nori)
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Nori better than potato chips!

• Also high in.
• Iodine
• Vitamin B12
• Riboflavin
• Calcium
• Fiber

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Gracilaria (ogo)
poke!
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Carrageenan

• Kappaphycus/Eucheuma
• (Rhodophyta)

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Kappaphycus/EucheumaWhen good algae go bad
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Agar

• Extracted from Rhodophyta

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Algin/Alginate Potash

• Extracted from Phaeophyta

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Identify, thenIRON CHEF Limu

1. Identify each alga by Genus species Hawaiian
   name Use a recipe or create your own recipe
   using algae!

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Ulva (Limu palahalaha) Sea lettuce
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Enteromorpha(Limu ele ele)Totally tubular!
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Codium(Limu wawaeiole)Rats foot
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Common Algae (Limu) Eaten in Hawaii
Sargassum (Limu kala)
Dictyopteris (Limu lipoa)
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Asparagopsis(Limu kohu)
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Ahnfeltiopsis(Limu aki aki)
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Gracilaria (Limu manauea)ogo
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Limu NOT commonly eaten in HawaiiCaulerpaSea
grapes