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Limu (algae)

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(Redirected from Hawaiian seaweed) Polynesian edible underwater plants
Ahi limu poke: raw fish with limu

Limu, otherwise known as rimu, remu or ʻimu (from Proto-Austronesian *limut) is a general Polynesian term for edible plants living underwater, such as seaweed, or plants living near water, like algae. In Hawaii, there are approximately one hundred names for kinds of limu, sixty of which can be matched with scientific names. Hundreds of species of marine algae were once found in Hawaii. Many limu are edible, and used in the cuisine throughout most of Polynesia.

Uses

Several species of limu are used as food throughout Polynesia and is typically eaten raw as accompaniment to meals, usually fish.

In Hawaii, limu was seen as a major component of the Hawaiian diet alongside fish and poi. Hawaiians cultivated several varieties of seaweed for food as well as to feed fish farmed within fish ponds. As many as 75 types of limu were used for food, more than the 35 used in Japanese cuisine, which is also well known for its use of seaweed. In modern times, limu is often used as a condiment, typically in raw fish dishes such as poke.

Limu was used in hoʻoponopono, the ancient Hawaiian process of conflict resolution. Injured and accused parties gathered to pray, seek forgiveness and eat limu kala leaves as a symbol of reconciliation. It is also used in traditional hula attire and as medicine.

Due to the shape of its foliage, the Maori also applied the name rimu to the native tree Dacrydium cupressinum.

Types

Limu comes from multiple genera

Cook Islands

Image English name Indigenous name Description and use
Crowned sea bells (Turbinaria ornata) Remu taratara (Rarotonga and Mauke), Rimu taratara (Aitutaki), Limu (Pukapuka)
Double-edge sargassum (Sargassum aquifolium) Rimu akau
Open-sponge seaweed (Hydroclathrus clathratus) Remu oma (Rarotonga)
Sargassum obtusifolium (Sargassum obtusifolium) Remu ʻūmoemoe (Rarotonga)
Sea grapes (Caulerpa racemosa) Remu kai (Rarotonga and Mauke), Remu kōnini (Mangaia), Rimu kai (Aitutaki)
Turkeytail seaweed (Padina boryana) Remu taʻiriʻiri (Rarotonga)

Easter Island

Image English name Indigenous name Description and use
Dictyopteris australis (Dictyopteris australis) Auke
Sargassum obtusifolium (Sargassum obtusifolium) Miritoni

French Polynesia

Image English name Indigenous name Description and use
Cactus tree alga (Caulerpa cupressoides) Mamaʻga (Rapan)
Chnoospora minima (Chnoospora minima) Imu keikei aoa (Marquesan)
Cladophora patentiramea (Cladophora patentiramea) Imu ouoho (Marquesan)
Gracilaria (Gracilaria) Remu ʻura (Tahitian)
Grass kelp (Enteromorpha flexuosa) Imu vai (Marquesan)
Green sea cushion (Codium arabicum) Imu tutae kioe (Marquesan)
Sea grapes (Caulerpa racemosa) ʻonini (Tahitian), Imu topua (Marquesan), Remu vine (Austral), Konini (Rapan)
Sea lettuce (Ulva lactuca) Rimu miti (Tahitian), Imu kokuu (Marquesan)

Hawaii

Image English name Indigenous name Description and use
Antler seaweed (Codium reediae) Limu aʻalaʻula
Branched sea cushion (Codium edule) Limu wawaeʻiole Meaning "rat's foot seaweed"
Branched string lettuce (Ulva prolifera) Limu ʻeleʻele
Champia (Champia) Limu ʻoʻolu Meaning "thin seaweed". Shares its name to the similarly used species Chondria tenuissima.
Chondria tenuissima (Chondria tenuissima) Limu ʻoʻolu Meaning "thin seaweed". Shares its name to the similarly used Champia seaweeds.
Chylocladia (Chylocladia) Limu akuila, Limu kihe
Crowned sea bells (Turbinaria ornata) Limu kahili
Dictyopteris (Dictyopteris) Limu lipoa Meaning "seaweed gathered from the deep" referring to its habitat of growing in deep water. The species Dictyopteris australis and Dictyopteris plagiogramma were gathered as food.
Dictyota (Dictyota) Limu alani Meaning "bitter seaweed"
Double-edge sargassum (Sargassum aquifolium) Limu kala Meaning "forgiving seaweed" employed during hoʻoponopono.
Grateloupia filicina (Grateloupia filicina) Limu huluhuluwaena or "pubic hair") – favorite of Liliʻuokalani.
Gelidium (Gelidium) Limu loloa Meaning "long or slender seaweed"
Griffithsia (Griffithsia) Moʻopunaakalīpoa, Moʻopuna
Gymnogongrus (Gymnogongrus) Limu koele Meaning "dry or hard seaweed"
Halymenia formosa (Halymenia formosa) Lepelepe-o-Hina shawl of the goddess Hina. Shares its name with a native butterfly and a family of nudibranchs.
Laurencia nidifica (Laurencia nidifica) Limu maneʻoneʻo
Laver (Porphyra) Limu luau, Lipaheʻe
Martensia fragilis (Martensia fragilis) Limu haʻula
Ogo (Gracilaria coronopifolia) Limu manauea cooked with meats to form a savory jelly. Later diced raw with poke, mixed with chili and salt.
Polysiphonia (Polysiphonia) Limu hāwane
Red sea plume (Asparagopsis taxiformis) Limu kohu Meaning "supreme seaweed"
Sailor’s eye (Valonia utricularis) Limu lipuʻupuʻu
Sea lettuce (Ulva lactuca) Limu palahalaha, Pakaiea named after a shark god who was swaddled in its silken leaves. used in hula
Spyridia spinella (Spyridia spinella) Limu hulu puaʻa
Tattered sea moss (Hypnea) Limu hina
Tuffed seaweed (Ahnfeltiopsis concinna) Limu ʻakiʻaki

New Zealand

Image English name Indigenous name Description and use
Bubble caulerpa (Caulerpa sedoides) Rimurimu
Carrageenan weed (Gigartina) Rehia, Rimurehia
Clymene (Clymene) Karengo, Kareko, Parengo, Reporepo
Eelgrass (Zostera) Karepō, Nana
Gracilaria (Gracilaria)
Kelp (Laminariales) Pakake, Pakaka
Laver (Porphyra) Karengo, Kareko, Parengo, Reporepo Originally, Karengo was used to describe seaweed belonging to the Porphyra genus. Recent genomic analysis however has Karengo cover more than 30 species belonging to genus Porphyra, Pyropia, Clymene and Lysithea.
Lysithea (Lysithea) Karengo, Kareko, Parengo, Reporepo
Neptune’s necklace (Hormosira banksii) Koiri
Sea lettuce (Ulva lactuca) Rimu kaikai
Sea rimu (Caulerpa brownii) Rimurimu
Southern bull kelp (Durvillaea) Rimurapa, Rimuroa, Kōauau
Southern laver (Pyropia) Karengo, Kareko, Parengo, Reporepo

Niue

Image English name Indigenous name Description and use
Cactus tree alga (Caulerpa cupressoides) Limu tahi
Sea grapes (Caulerpa racemosa) Limu fua

Samoa

Image English name Indigenous name Description and use
Crowned sea bells (Turbinaria ornata) Limu lautalatala
Gracilaria (Gracilaria) Limu aau
Halymenia (Halymenia) A ʻau
Sargassum (Sargassum) Limu vavoa
Sea grapes (Caulerpa racemosa) Fuafua
Turkeytail seaweed (Padina boryana) Limu lautaliga

Tonga

Image English name Indigenous name Description and use
Cactus tree alga (Caulerpa cupressoides) Kaka
Cladosiphon (Cladosiphon) Tangaʻu
Flat-top sea grape (Caulerpa peltata) Fuofua
Green feather algae (Caulerpa sertularioides) Louniu, Louango, Tuʻaniu
Hypnea charoides (Hypnea charoides) Limu vai
Scalpel green seaweed (Caulerpa scalpelliformis) Palalafa
Sea grapes (Caulerpa racemosa) Toke, Fuofua, Alako, Teʻemoa, Teʻepuaka
Serrated green seaweed (Caulerpa serrulata) Kaka

Tuvalu

Image English name Indigenous name Description and use
Sea grapes (Caulerpa racemosa) Limu pukupuku

Threats

Limu has become increasingly difficult to find because of over-picking, pollution, and urban development, especially construction in watersheds. Many important kinds of limu grow best in brackish water where fresh water empties into the sea. Another threat to limu is the spread of marine alien invasive species, such as members of the genus Kappaphycus (smothering seaweed), Gracilaria salicornia (gorilla ogo), Avrainvillea amadelpha (leather mudweed), Hypnea musciformis (hook weed) and Acanthophora spicifera (prickly seaweed).

See also

Further reading

References

  1. Blust, Robert; Trussel, Stephen (2010). "*limut: moss, algae". Austronesian Comparative Dictionary. Max Planck Institute for Evolutionary Anthropology. Retrieved 7 December 2022.
  2. ^ "Limu: Seaweed, mosses and algae of polynesia". Te Māra Reo: The Language Garden. Benton Family Trust. 2022.
  3. "Nā Puke Wehewehe ʻŌlelo Hawaiʻi". wehewehe.org. Retrieved 2019-04-26.
  4. Aiona Abbott, Isabella. "Limu" (PDF). Retrieved 2008-09-05.
  5. ^ MacCaughey, Vaughan (1916). "The Seaweeds of Hawaii". American Journal of Botany. 3 (8): 474–479. doi:10.1002/j.1537-2197.1916.tb05429.x. ISSN 0002-9122. JSTOR 2435240.
  6. ^ "Edible Limu of Hawaii". www.hawaii.edu. Retrieved 2019-04-22.
  7. ^ Spalding, Heather. "Got limu? Uses for algae in Hawaii and beyond" (PDF). University of Hawaii. Retrieved April 25, 2019.
  8. ^ Wianecki, Shannon (2010-03-01). "The Lure of Limu". mauimagazine.net. Retrieved 2019-04-22.
  9. "New Algae Species Discovered in Hawaii's Deep Waters". www.papahanaumokuakea.gov. Retrieved 2019-04-26.
  10. Reed, Minnie (1907). Economic seaweeds of Hawaii and their food value. Washington, U.S. Government Printing Office. hdl:10125/42229.
  11. "Cook Islands Biodiversity: Turbinaria ornata - Spiny-leaf Seaweed". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  12. "Cook Islands Biodiversity: Sargassum echinocarpum". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  13. "Cook Islands Biodiversity: Hydroclathrus clathratus - Sponge Seaweed". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  14. "Cook Islands Biodiversity: Sargassum obtusifolium". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  15. "Cook Islands Biodiversity: Caulerpa racemosa - Sea-Grapes Seaweed". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  16. "Cook Islands Biodiversity: Padina australis - Fan-leaf Seaweed". Cook Islands Biodiversity & Natural Heritage. Retrieved December 8, 2023.
  17. D. R. N’Yeurt, Antoine. "Marine Algal Flora of French Polynesia II. Chlorophyceae (green algae)" (PDF). Laboratoire Terre-Océan, Université de la Polynésie française. Retrieved August 11, 2024.
  18. ^ Conte, Éric. "La consommation des algues en Polynésie française : premiers résultats d'une enquête". Journal de la Société des Océanistes. Retrieved November 21, 2023.
  19. Lincoln, Noa Kekuewa (2020-10-31). Kō: An Ethnobotanical Guide to Hawaiian Sugarcane Cultivars. University of Hawaii Press. ISBN 978-0-8248-8307-2.
  20. "Limu Palahalaha". Waikīkī Aquarium. 2013-11-11. Retrieved 2019-04-26.
  21. ^ Ostraff, Melinda. "Contemporary Uses of Limu (marine algae) in the Vava'u Island Group, Kingdom of Tonga: an Ethnobotanical Study". University of Victoria. Retrieved December 30, 2023.
  22. Hiraishi, Ku`uwehi (12 April 2018). "Cultivating a Future for Hawaiian Seaweed". www.hawaiipublicradio.org. Retrieved 2019-04-26.
  23. "Invasive Algae". Aquatic Invasive Species. 2013-12-09. Retrieved 2019-04-22.

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