Seaweed Deep Dive Article

World Fund & Katapult Ocean Fisheries & Aquaculture

Seaweed Deep Dive Article
Oleksandr Sushko, Unsplash

Macroalgae, commonly known as seaweed, are multicellular, photosynthetic, marine organisms visible to the naked eye. Unlike their microscopic cousins, microalgae, macroalgae have complex structures resembling plants.

Over 10,000 macroalgae species have been classified, and are generally subdivided into three groups based on their pigmentation: red (e.g. dulse), green (e.g. sea lettuce) and brown algae (e.g. kelp and sargassum). These will vary in shape, size, and nutritional content, as well as affinity for coastal (30-50m) or deeper waters (up to 250m deep).

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