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Kelp grow from stalks close together in very dense areas like forests under shallow temperate and Arctic oceans. [3] They were previously thought to have appeared in the Miocene , 5 to 23 million years ago based on fossils from California. [ 5 ]
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 ...
[23] [24]: 8 They can grow at a rate of 60 cm (2 ft) a day to reach over 45 m (150 ft) long in one growing season. [8] [25] [26] Juvenile giant kelp grow directly upon their parent female gametophyte. To establish itself, a young kelp produces one or two primary blades, and begins a rudimentary holdfast, which serves to anchor the plant to the ...
The species Pelagophycus porra, also known as elk kelp, grows in temperatures of no higher than 60 °F (16 °C). It grows in subtidal forests in the coastal waters off southern California and northwestern Baja California Peninsula , in waters of 20 metres (66 ft) to 90 metres (300 ft) deep, anchored by a holdfast in sedimentary or loose ...
Kelp forests grow in rocky places along the shore that are constantly eroding carrying material out to the deep sea. The kelp then sinks to the ocean floor and store the carbon where is it unlikely to be disturbed by human activity. [71]
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It can reach 60 m (200 ft) in length and grow as rapidly as 50 cm (20 in) a day. [52] According to one study, covering 9% of the world's oceans with kelp forests could produce "sufficient biomethane to replace all of today's needs in fossil fuel energy, while removing 53 billion tons of CO 2 per year from the atmosphere, restoring pre ...
It can reach 60 m (200 ft) in length and grow as rapidly as 50 cm (20 in) a day. [57] According to one study, covering 9% of the world's oceans with kelp forests could produce "sufficient biomethane to replace all of today's needs in fossil fuel energy, while removing 53 billion tons of CO 2 per year from the atmosphere, restoring pre ...