Limu (algae)
Limu, otherwise known as rimu, remu or ʻimu (from Proto-Austronesian *limut)[1] is a general Polynesian term for edible plants living underwater, such as seaweed, or plants living near water, like algae.[2][3] In Hawaii, there are approximately one hundred names for kinds of limu, sixty of which can be matched with scientific names.[4] Hundreds of species of marine algae were once found in Hawaii.[5] 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.[6] 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.[5] In modern times, limu is often used as a condiment, typically in raw fish dishes such as poke.[7]
Limu was used in hoʻoponopono, the ancient Hawaiian process of conflict resolution. Injured and accused parties gathered to pray, seek forgiveness and eat Script error: No such module "Lang". leaves as a symbol of reconciliation.[7][8] It is also used in traditional hula attire[9] and as medicine.[10]
Due to the shape of its foliage, the Maori also applied the name Script error: No such module "Lang". to the native tree Dacrydium cupressinum.[2]
Types
Limu comes from multiple genera[6]
Cook Islands
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Turbinaria ornata (Cnidaria).jpg | Crowned sea bells (Turbinaria ornata) | Script error: No such module "Lang". (Rarotonga and Mauke), Script error: No such module "Lang". (Aitutaki), Script error: No such module "Lang". (Pukapuka)[11] | |
| File:Sargassum - 1.jpg | Double-edge sargassum (Sargassum aquifolium) | Script error: No such module "Lang".[12] | |
| File:Hydroclathrus sp.jpg | Open-sponge seaweed (Hydroclathrus clathratus) | Script error: No such module "Lang". (Rarotonga)[13] | |
| File:Sargassum - 1.jpg | Sargassum obtusifolium (Sargassum obtusifolium) | Script error: No such module "Lang". (Rarotonga)[14] | |
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang". (Rarotonga and Mauke), Script error: No such module "Lang". (Mangaia), Script error: No such module "Lang". (Aitutaki)[15] | |
| File:Padina boryana.JPG | Turkeytail seaweed (Padina boryana) | Script error: No such module "Lang". (Rarotonga)[16] |
Easter Island
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Dictyopteris membranacea herbarium item.jpg | Dictyopteris australis (Dictyopteris australis) | Script error: No such module "Lang". | |
| File:Sargassum - 1.jpg | Sargassum obtusifolium (Sargassum obtusifolium) | Script error: No such module "Lang". |
French Polynesia
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Caulerpa cupressoides in Harvey 1858.JPG | Cactus tree alga (Caulerpa cupressoides) | Script error: No such module "Lang". (Rapan) | [17] |
| Chnoospora minima (Chnoospora minima) | Script error: No such module "Lang". (Marquesan) | [18] | |
| File:Cladophora.JPG | Cladophora patentiramea (Cladophora patentiramea) | Script error: No such module "Lang". (Marquesan) | [18] |
| File:Gracilaria sp.jpg | Gracilaria (Gracilaria) | Script error: No such module "Lang". (Tahitian) | |
| File:Ulva flexuosa subsp. paradoxa Crouan.jpg | Grass kelp (Enteromorpha flexuosa) | Script error: No such module "Lang". (Marquesan) | [18] |
| File:Codium arabicum.jpg | Green sea cushion (Codium arabicum) | Script error: No such module "Lang". (Marquesan) | [18] |
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang". (Tahitian), Script error: No such module "Lang". (Marquesan), Script error: No such module "Lang". (Austral), Script error: No such module "Lang". (Rapan) | [18] |
| File:Sea lettuce in Brofjorden 1 - cropped.jpg | Sea lettuce (Ulva lactuca) | Script error: No such module "Lang". (Tahitian), Script error: No such module "Lang". (Marquesan) | [18] |
Hawaii
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Codium sp..jpg | Antler seaweed (Codium reediae) | Script error: No such module "Lang". | |
| File:Codium sp.jpg | Branched sea cushion (Codium edule) | Script error: No such module "Lang". | Meaning "rat's foot seaweed" |
| File:Ulva sp Jurmo24072018.jpg | Branched string lettuce (Ulva prolifera) | Script error: No such module "Lang". | |
| File:FMIB 52480 Champia parvula, magnified.jpeg | Champia (Champia) | Script error: No such module "Lang". | Meaning "thin seaweed". Shares its name to the similarly used species Chondria tenuissima. |
| File:Chondria-capillaris-19980602b.jpg | Chondria tenuissima (Chondria tenuissima) | Script error: No such module "Lang". | Meaning "thin seaweed". Shares its name to the similarly used Champia seaweeds. |
| File:Chylocladia kaliformis.jpg | Chylocladia (Chylocladia) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Turbinaria ornata (Cnidaria).jpg | Crowned sea bells (Turbinaria ornata) | Script error: No such module "Lang". | |
| File:Dictyopteris membranacea herbarium item.jpg | Dictyopteris (Dictyopteris) | Script error: No such module "Lang". | 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. |
| File:Dictyota dichotoma 43980064.jpg | Dictyota (Dictyota) | Script error: No such module "Lang". | Meaning "bitter seaweed" |
| File:Sargassum - 1.jpg | Double-edge sargassum (Sargassum aquifolium) | Script error: No such module "Lang". | Meaning "forgiving seaweed" employed during Script error: No such module "Lang".. |
| File:FMIB 53642 Rhodophycees ou Floridees (Algues rouges) Grateloupia filicina (Wulf) J Ag.jpeg | Grateloupia filicina (Grateloupia filicina) | Script error: No such module "Lang". | or "pubic hair") – favorite of Liliʻuokalani.[8] |
| File:Gelidium sp.jpg | Gelidium (Gelidium) | Script error: No such module "Lang". | Meaning "long or slender seaweed"[5] |
| File:Griffithsia corallinoides Crouan.jpg | Griffithsia (Griffithsia) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Gymnogongrus torulosus (Hook.f. and Harv.) Schmitz (AM AK295286-1).jpg | Gymnogongrus (Gymnogongrus) | Script error: No such module "Lang". | Meaning "dry or hard seaweed"[5] |
| File:Halymenia floresii.jpg | Halymenia formosa (Halymenia formosa) | Script error: No such module "Lang". | shawl of the goddess Hina. Shares its name with a native butterfly and a family of nudibranchs.[8] |
| File:Laurencia Aquarium of the Pacific.jpg | Laurencia nidifica (Laurencia nidifica) | Script error: No such module "Lang". | |
| File:Purple Laver (Porphyra umbilicalis) - Oslo, Norway 2020-08-12 (03).jpg | Laver (Porphyra) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Martensia spp, Bittangabee Bay, Beowa National Park NSW.jpg | Martensia fragilis (Martensia fragilis) | Script error: No such module "Lang". | |
| File:Gracilaria sp.jpg | Ogo (Gracilaria coronopifolia) | Script error: No such module "Lang". | cooked with meats to form a savory jelly. Later diced raw with poke, mixed with chili and salt.[8] |
| File:Polysiphonia sp. - Stavanger, Norway 2021-08-03.jpg | Polysiphonia (Polysiphonia) | Script error: No such module "Lang". | |
| File:Asparagopsis taxiformis Réunion 2 cropped.JPG | Red sea plume (Asparagopsis taxiformis) | Script error: No such module "Lang". | Meaning "supreme seaweed" |
| File:Unidentified Valonia - Kew 3.jpg | Sailor’s eye (Valonia utricularis) | Script error: No such module "Lang". | |
| File:Sea lettuce in Brofjorden 1 - cropped.jpg | Sea lettuce (Ulva lactuca) | Script error: No such module "Lang"., Script error: No such module "Lang". | named after a shark god who was swaddled in its silken leaves.[8][19] used in hula[20] |
| File:FMIB 53610 Rhodophycees ou Floridees (Algues rouges) Ceramiees, Spyridia filamentosa (Wulf) J Ag.jpeg | Spyridia spinella (Spyridia spinella) | Script error: No such module "Lang". | |
| File:Hypnea flexuosa A.C.Brown and N.Jarman (AM AK307804-2).jpg | Tattered sea moss (Hypnea) | Script error: No such module "Lang". | |
| File:Ahnfeltiopsis linearis 8649974.jpg | Tuffed seaweed (Ahnfeltiopsis concinna) | Script error: No such module "Lang". |
New Zealand
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Caulerpa geminata Harv. (AM AK304895).jpg | Bubble caulerpa (Caulerpa sedoides) | Script error: No such module "Lang". | |
| File:Turkish towel (Gigartina) (3266060874).jpg | Carrageenan weed (Gigartina) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Clymene coleana.jpg | Clymene (Clymene) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Zostera.jpg | Eelgrass (Zostera) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Gracilaria sp.jpg | Gracilaria (Gracilaria) | ||
| File:Sanc0063 - Flickr - NOAA Photo Library.jpg | Kelp (Laminariales) | Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Purple Laver (Porphyra umbilicalis) - Oslo, Norway 2020-08-12 (03).jpg | Laver (Porphyra) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | 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) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | ||
| File:Neptune's Necklace (Hormosira banksii) (49918991983).jpg | Neptune’s necklace (Hormosira banksii) | Script error: No such module "Lang". | |
| File:Sea lettuce in Brofjorden 1 - cropped.jpg | Sea lettuce (Ulva lactuca) | Script error: No such module "Lang". | |
| File:Caulerpa brownii.jpeg | Sea rimu (Caulerpa brownii) | Script error: No such module "Lang". | |
| File:Durvillea antarctica.JPG | Southern bull kelp (Durvillaea) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | |
| File:Pyropia sp. - Kristiansand, Norway 2021-08-12.jpg | Southern laver (Pyropia) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". |
Niue
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Caulerpa cupressoides in Harvey 1858.JPG | Cactus tree alga (Caulerpa cupressoides) | Script error: No such module "Lang". | |
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang". |
Samoa
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Turbinaria ornata (Cnidaria).jpg | Crowned sea bells (Turbinaria ornata) | Script error: No such module "Lang". | |
| File:Gracilaria sp.jpg | Gracilaria (Gracilaria) | Script error: No such module "Lang". | |
| File:Halymenia floresii.jpg | Halymenia (Halymenia) | Script error: No such module "Lang". | |
| File:Sargassum - 1.jpg | Sargassum (Sargassum) | Script error: No such module "Lang". | |
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang". | |
| File:Padina boryana.JPG | Turkeytail seaweed (Padina boryana) | Script error: No such module "Lang". |
Tonga
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Caulerpa cupressoides in Harvey 1858.JPG | Cactus tree alga (Caulerpa cupressoides) | Script error: No such module "Lang". | [21] |
| File:FMIB 38401 Castagnea zosterae.jpeg | Cladosiphon (Cladosiphon) | Script error: No such module "Lang". | [21] |
| File:Caulerpa cf peltata.jpg | Flat-top sea grape (Caulerpa peltata) | Script error: No such module "Lang". | [21] |
| File:Caulerpa sertularioides.jpg | Green feather algae (Caulerpa sertularioides) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | [21] |
| File:Hypnea flexuosa A.C.Brown and N.Jarman (AM AK307804-2).jpg | Hypnea charoides (Hypnea charoides) | Script error: No such module "Lang". | [21] |
| File:Caulerpa scalpelliformis 254298193.jpg | Scalpel green seaweed (Caulerpa scalpelliformis) | Script error: No such module "Lang". | [21] |
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang"., Script error: No such module "Lang". | [21] |
| File:The green seaweed, Caulerpa serrulata, at Ponta do Ouro, Mozambique (6661104601).jpg | Serrated green seaweed (Caulerpa serrulata) | Script error: No such module "Lang". | [21] |
Tuvalu
| Image | English name | Indigenous name | Description and use |
|---|---|---|---|
| File:Caulerpa racemosa.jpg | Sea grapes (Caulerpa racemosa) | Script error: No such module "Lang". |
Threats
Limu has become increasingly difficult to find because of over-picking, pollution, and urban development,[22] 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).[23]
See also
Further reading
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References
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External links
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