
Macrocystis - Wikipedia
Macrocystis pyrifera, known as giant kelp, most widely distributed Macrocystis species, [41] found in intermediate-to-deep water [16] of North America (Alaska to California), South America, …
Giant Kelp - U.S. National Park Service
Aug 7, 2015 · Giant kelp is the worlds largest species of marine algae. In the United States, it can be found along the west coast, especially around southern California where it grows in dense …
Giant Kelp - Oceana
Giant kelp is a favorite for sea urchins, which if left unchecked can overgraze and destroy kelp forests. Learn more about giant kelp.
Giant kelp | Animals | Monterey Bay Aquarium
This majestic giant grows incredibly fast — anywhere from three to five inches (7–13 cm) each day in our exhibit, and 10 to 12 inches (25–30.5 cm) in the bay. Under ideal conditions, giant …
Macrocystis | Giant Kelp, Seaweed, Marine Plant | Britannica
Macrocystis, genus of three or four species of brown algae (family Laminariaceae), found in cool, coastal waters of the Pacific Ocean and parts of the southern Atlantic and Southern Oceans. …
Species Database - SIMoN
This incredible kelp may be the fastest growing organism in the world with growth rates reaching a phenomenal 50 cm a day in ideal conditions. Growth is limited by nitrogen and light, therefore …
Kelp | Definition, Major Genera, & Facts | Britannica
Mar 10, 2025 · Giant kelps of the genus Macrocystis are the largest known kelp species, reaching up to 65 metres (215 feet) long. The genus is limited in distribution because it reproduces only …
Giant Kelp | Online Learning Center | Aquarium of the Pacific
Giant kelp are one of the largest species of marine algae. They use their large blades to collect sunlight and absorb nutrients from the water. Gas bladders keep them upright, letting them …
Giant Kelp (Macrocystis pyrifera) - iNaturalist
Macrocystis pyrifera, commonly known as giant kelp or giant bladder kelp, is a species of kelp (large brown algae), and one of four species in the genus Macrocystis.
Giant kelp | brown algae | Britannica - Encyclopedia Britannica
Giant kelps of the genus Macrocystis are the largest known kelp species, reaching up to 65 metres (215 feet) long. The genus is limited in distribution because it reproduces only at …