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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.
The most widely recognized species are the giant kelps (Macrocystis spp.), although numerous other genera such as Laminaria, Ecklonia, Lessonia, Nereocystis, Alaria, and Eisenia are described. A wide range of sea life uses kelp forests for protection or food, including fish.
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).
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 ...
Laminariaceae is a family of brown algal seaweeds, many genera of which are popularly called "kelp". The table indicates the genera within this family. [1] The family includes the largest known seaweeds: Nereocystis and Macrocystis. [2] [3]
Lessonia is a genus of large kelp native to the southern Pacific Ocean. It is the only kelp to be restricted to the southern hemisphere and is primarily distributed along the coasts of South America, New Zealand, Tasmania, and the Antarctic islands. [1] [2] Lessonia is one of two principal genera in kelp forests (the other is Macrocystis).
The Giant kelp marine forests of south east Australia is a community extending from the ocean floor to the ocean surface, on a rocky substrate, and has a ‘forest-like’ structure with many organisms occupying its various layers, including pelagic and demersal fishes, sea birds, turtles and marine mammals in addition to the invertebrate ...
However, this classification system is in disuse due to the kingdom's non-monophyletic nature. [ 25 ] While Ochrophyta is the preferred name by general protistologists and protozoologists, the name Heterokontophyta is considered more familiar among phycologists . [ 7 ]