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

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Presentation transcript:

Got Limu? Uses for Algae in Hawaii…. and Beyond! Heather Spalding UH Manoa GK-12 Program Hui Malama Learning Center

What is algae, anyway? ……NO! ……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!

Three main divisions of marine algae in Kingdom Protista: Chlorophyta – green algae Rhodophyta – red algae Phaeophyta – brown algae

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

Psycho Phycos “phykos” = Greek for “alga” Phycology = study of algae Phycologist = someone who studies algae Every Phycologist’s Pet Peeve: “Alga” is singular “Algae” is plural “Algaes” do not exist!!!

Halimeda meadows form important habitat

Algae is used for many purposes Fertilizer Food for humans and animals Hawaiiian cultural practices Extracted products: potash algin carrageenan agar

Most common algae used for food worldwide Porphyra (nori) Gracilaria (ogo) Rhodymenia (dulse) Chondrus crispus (Irish moss)

Porphyra (nori)

Nori: better than potato chips! Also high in…. Iodine Vitamin B12 Riboflavin Calcium Fiber

Gracilaria (ogo) poke!

Carrageenan Kappaphycus/Eucheuma (Rhodophyta)

Kappaphycus/Eucheuma When good algae go bad

Agar Extracted from Rhodophyta

Algin/Alginate & Potash Extracted from Phaeophyta

Identify, then…IRON CHEF: Limu Identify each alga by Genus species & Hawaiian name Use a recipe or create your own recipe using algae!

Ulva (Limu palahalaha) Sea lettuce

Enteromorpha (Limu ‘ele ‘ele) Totally tubular!

Codium (Limu wawae’iole) “Rat’s foot”

Common Algae (Limu) Eaten in Hawaii Dictyopteris (Limu lipoa) Sargassum (Limu kala)

Asparagopsis (Limu kohu)

Ahnfeltiopsis (Limu ‘aki ‘aki)

Gracilaria (Limu manauea) ogo

Limu NOT commonly eaten in Hawaii Caulerpa “Sea grapes”