Factsheets for Green Seaweeds (phylum Chlorophyta)

Genus: Monostroma Trade name: monostroma Symbol: MO

AuthorityThuret Type species: Monostroma bullosum (Roth) Thuret
Commercial species:  nitidum (NIT)
Common names: Aonori, Aonoriko, Atsukawa-hitoe, Awo-Nori, Green laver, Hai Tsai, Hai-cai, Hida-hitoe, Hitoegusa, Jade Nori, Kito-hitoegusa, Kuro-hitoegusa, Motsuki-hitoe, O-hitoegusa, Sea-lettuce, Yezo-hitoegusa
Classification: Eukaryota, Phylum Chlorophyta, Order Ulvales, Family Monostromataceae.
AlgaeBase names and species:  55 names - 22 current as of 12-2001.
Comprehensive lists of common names , generic & specific names can be found at AlgaeBase. >>Click here<<  for SuriaLink's policy on names.
SuriaLink SeaPlant Utility Rating
Developing aquaculture crop used for food & bioactive properties.
 Sometimes occurs as a "weed" in cultures of red seaweeds such as Kappaphycus and Eucheuma.
Description
Bright green in colour. Single cell layer (in contrast to Ulva and Enteromorpha). Slender at the holdfast and growing wider toward the apex, often with a slight funnel shape that has splits down the side. Reproduces seasonally; usually during tropical dry season or temperate spring.
Habitat
Found in shallow sea water usually less than 1 m. in depth. generally grows on rocks, coral, mollusk shells or other hard substrate but also grows as an epiphyte on sea plants including crops such as Kappaphycus and Eucheuma.

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Monostroma production
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Tons per annum
wild harvest
Tons per annum
cultivated
Japan n/a 1,250
Total 

1,250

n/a 1,250
Production
Approximate annual production figures from recent years are as above.
Biology & Agronomy
Cultivated using methods similar to those used with Porphyra.
Chemistry
Studies of Monostroma chemistry are in an active phase partly because of the reputed bioactivity of some compounds that are synthesised by the genus.
Processing
We have several monographs in progress covering analytical procedures post-harvest treatment and process technology. Check the processing index for available web pages and monographs. 
Products, Uses & Applications
Plants generally identified as Monostroma nitidum are cultivated in Okinawa, Japan (Kagoshima), Taiwan China and elsewhere. The most common use is as human food. Monostroma may be chopped and made into sheets in the manner used for Porphyra. Monostroma spp. are also reputed to contain bioactive substances that are useful in topical skin treatments and may have some pharmaceutical applications related to healing of muscle tissue.
List of species' uses and community affiliations
Genus GenID SpID Species Uses Communities
Monostroma MO NIT nitidum FH SV, WB

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Monostroma is most strongly associated with the NutraPharmSeavegetable and Wellbeing communities.
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