Translation guide
In Japanese, the general term for algae is 藻 (も), but in everyday contexts, specific types like seaweed or pond scum are more common. The translation depends on the context: marine macroalgae (seaweed), freshwater microalgae (pond scum), or scientific/biological references.
Referring to algae as a broad biological group, including both micro and macro forms.
The most direct and general term for algae in scientific or formal contexts. Can refer to any type of algae, from microscopic to large seaweeds.
Algae are organisms that perform photosynthesis.
A more technical term for algae as a taxonomic group, often used in biology and environmental science.
Referring to large algae that grow in the sea, often used as food or seen on beaches.
Referring to green, slimy algae that grows in ponds, aquariums, or stagnant water.
Referring to edible microalgae used in supplements or health foods.
In everyday English, 'algae' often refers to pond scum or aquarium growth. In Japanese, the specific context determines the best word. For seaweed, use 海藻; for pond scum, 藻 is fine, but アオコ may be more precise for green water blooms.
藻 (も) is the broadest term, covering all algae. 海藻 (かいそう) specifically means marine algae/seaweed. 藻類 (そうるい) is a scientific term for the taxonomic group. In daily conversation, 海藻 is most common for edible seaweed, while 藻 is used for slimy growths.
この湖では藻類の異常発生が問題になっています。
An algal bloom is a problem in this lake.
The standard term for marine algae or seaweed, especially edible varieties like nori, wakame, and kombu.
Seaweed is essential to Japanese cuisine.
A lot of seaweed had washed up on the shore.
Can also refer to seaweed in general, but 海藻 is more specific and common for marine contexts.
There is algae on the rocks.
A lot of algae is growing in the pond.
Specifically refers to blue-green algae (cyanobacteria) blooms that turn water green, often in lakes or ponds.
In summer, blue-green algae blooms occur in the lake.
Literally 'water grime', can refer to algae buildup in aquariums or water containers, but also to limescale. Context-dependent.
Clean the algae from the fish tank.
This supplement contains algae.
The specific term for chlorella, a popular health food algae.
Chlorella is highly nutritious.
The specific term for spirulina, another microalgae used as a supplement.
Spirulina is popular as a health food.