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An alternative offset would be to cultivate kelp forests. Kelp can grow at 2 feet per day, 30 times faster than terrestrial plants. Planting kelp across 10% of the oceans (4.5 x the area of Australia) could provide the same offset. Additionally, the kelp would support a fish harvest of 2 megatons per year and reduce ocean acidification. Large ...
Saccharina japonica is a marine species of the Phaeophyceae (brown algae) class, a type of kelp or seaweed, which is extensively cultivated on ropes between the seas of China, Japan and Korea. [1] It has the common name sweet kelp. [2] It is widely eaten in East Asia. [3]
Ascophyllum nodosum is harvested for use in alginates, fertilisers, and the manufacture of seaweed meal for animal and human consumption. Due to the high level of vitamins and minerals that bioaccumulate in A. nodosum, it has been used in Greenland as a dietary supplement. [6] It was also been used for certain herbal teas, particularly kelp teas.
Human use of seaweed is known from the Neolithic period. [4] Cultivation of gim (laver) in Korea is reported in books from the 15th century. [71] [72] Seaweed farming began in Japan as early as 1670 in Tokyo Bay. [73] In autumn of each year, farmers would throw bamboo branches into shallow, muddy water, where the spores of the seaweed would ...
Saccharina latissima is a yellowish brown colour with a long narrow, undivided blade that can grow to 5 metres (16 ft) long and 20 centimetres (7.9 in) wide. The central band is dimpled while the margins are smoother with a wavy edge, this is to cause greater water movement around the blades to aid in gas exchange.
This "kelp highway hypothesis" suggested that highly productive kelp forests supported rich and diverse marine food webs in nearshore waters, including many types of fish, shellfish, birds, marine mammals, and seaweeds that were similar from Japan to California, Erlandson and his colleagues also argued that coastal kelp forests reduced wave ...
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Humans use seaweeds nutritionally as food, industrially for animal feed and plant fertilizer, and ecologically to improve environmental conditions. [ 7 ] [ 6 ] [ 8 ] Seaweeds have been consumed by humans for centuries because they have excellent nutritional profiles, contain minerals, trace elements , amino acids , and vitamins , [ 7 ] and are ...