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Macrocystis is a monospecific genus [3] of kelp (large brown algae) with all species now synonymous with Macrocystis pyrifera. It is commonly known as giant kelp or bladder kelp. This genus contains the largest of all the Phaeophyceae or brown algae. Macrocystis has pneumatocysts at the base of its blades.
A brown algae, Sargassum horneri, an invasive species first spotted in 2003, has also been a concern. [29] [30] Researchers at the Bodega Marine Laboratory of UC Davis are developing replanting strategies, and volunteers of the Orange County Coastkeeper group are replanting giant kelp.
In kelp this transportation network uses trumpet-shaped sieve elements (SEs). A 2015 study aimed to evaluate the efficiency of giant kelp (Macrocystis pyrifera) transport anatomy looked at 6 different laminariales species to see if they had typical vascular plant allometric relationships (if SEs had a correlation with the size of an organism).
California's coast has bull and giant kelp, the world's largest marine algae. Urchins have hurt both species, though giant kelp forests have fared better.
Rockfish swimming around giant kelp A diver in a kelp forest off the coast of California A kelp forest off of the coast of Anacapa Island, California Giant kelp uses gas-filled floats to keep the thallus suspended, allowing the kelp blades near the ocean surface to capture light for photosynthesis.
Kelps can range in size from the 60-centimeter-tall (2 ft) sea palm Postelsia to the giant kelp Macrocystis pyrifera, which grows to over 50 m (150 ft) long [8] [9] and is the largest of all the algae. In form, the brown algae range from small crusts or cushions [10] to leafy free-floating mats formed by species of Sargassum.
The Giant Kelpfish is a species of clinid, native to the west coast of North America. It is found most commonly in the warmer waters of Point Conception, California, to southern Baja California. It inhabits rocky areas with dense canopies of microalga, giant kelp and other large seaweeds. It is also known that they may use Eelgrass or Surfgrass ...
The largest stramenopiles are giant kelp from the northwestern Pacific. The floating stem of Macrocystis pyrifera can grow to a height of over 45 m (148 ft). [40] [41] Macrocystis also qualifies as the largest brown alga, the largest chromist, and the largest protist generally.