Marine Green Macroalgae Codexery

Ulva (alga)

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The genus Ulva, commonly known as sea lettuces, comprises edible green algae distributed worldwide.[1] Its type species is Ulva lactuca, whose species name means "lettuce" in Latin.[1] Individual blades can exceed 400 mm in sheltered areas.[2]

Scientific classification

  1. CladeEukaryota
  2. CladeArchaeplastida
  3. CladeViridiplantae
  4. ClassUlvophyceae
  5. OrderUlvales
  6. FamilyUlvaceae
  7. GenusUlva

Named by Linnaeus, 1753

Sources: Wikipedia taxobox: Sea lettuce (CC BY-SA 4.0)

Quick Facts

Type species
Ulva lactuca
Maximum blade size
more than 400 mm (16 in)
Color
light to dark green
Attachment structure
disc holdfast
Thallus structure
leaflike flattened thallus
Food name in japan
aosa

Facts from the source article.

Key facts and history

Sea lettuce is consumed by manatees and sea hares.[3] The alga Ulva is a macroscopic organism, colored light to dark green, and it uses a disc-shaped holdfast for attachment.[2] This organism possesses a flattened, leaf-like thallus as its structural form.[2] People in Scandinavia, Great Britain, Ireland, China, and Japan consume many types of Ulva as food.[4]

Consumption of sea lettuce occurs either raw, added to salads, or cooked, for example in soups.[4] This alga contains significant amounts of protein, soluble fiber, vitamins, and minerals, with iron being particularly abundant.[4] Because toxic heavy metals can contaminate Ulva at certain harvesting locations, eating it can pose a health risk.[5]

What the cited sources add

The same report notes that the driver had been working without a mask or gloves and died when his vehicle crashed into a wall.[6] Environmentalists blamed the algal explosion on high nitrate levels from fertilisers and livestock waste, according to the BBC.[6] The BBC account notes that a horse died on the beach at Saint-Michel-en-Grève, and its rider lost consciousness from the fumes.[6] The BBC also reports that François Fillon, the French head of government at the time, announced state funding for cleaning the beaches.[6]

References

  1. Wikipedia, "Sea lettuce" (CC BY-SA 4.0), which cites: "Linnaeus was right all along: Ulva and Enteromorpha are not distinct genera", European Journal of Phycology, 2003, p. 277–294; "Enteromorpha Link in Nees, 1820", AlgaeBase, 2012 (original not read by us) en.wikipedia.org
  2. Wikipedia, "Sea lettuce" (CC BY-SA 4.0), which cites: "Sea lettuce green algae", Encyclopedia Britannica; Burrows, E.M. 1991. Seaweeds of the British Isles. Volume 2 Chlorophyta. Natural History Museum, (original not read by us) en.wikipedia.org
  3. Wikipedia, "Sea lettuce" (CC BY-SA 4.0), which cites: Carefoot, "Artificial diets for sea hares", Canadian Journal of Zoology, 1979, p. 2271–2273 (original not read by us) en.wikipedia.org
  4. Wikipedia, "Sea lettuce" (CC BY-SA 4.0), which cites: "Chemical composition and functional properties of Ulva lactuca seaweed collected in Tunisia", Food Chemistry, 2011, p. 895–901; D-S, "The Enrichment of Bread with Algae Species", Scientific Papers Series D: Animal Science, 2022, p. 558–563; Kort, "The Coastal Forager’s Cookbook", Touchwood Editions, 2023 (we also read that source) en.wikipedia.org
  5. Wikipedia, "Sea lettuce" (CC BY-SA 4.0), which cites: "Chemical composition and functional properties of Ulva lactuca seaweed collected in Tunisia", Food Chemistry, 2011, p. 895–901 (original not read by us) en.wikipedia.org
  6. "Seaweed suspected in French death", BBC, September 7, 2009. facts only, no text reused. news.bbc.co.uk

Each numbered sentence above was checked against the source it cites before publication. Sentences citing Wikipedia adapt text from the English Wikipedia article Sea lettuce (contributors), used under CC BY-SA 4.0; this entry is available under the same licence. Other sources were used for facts only; no text or images are copied from them.

Related entries

Ulva paschima

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Sources

Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.

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