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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.
This is a list of the orders, families and genera in the class Phaeophyceae — the brown algae. [1] Discosporangiophycidae. Discosporangiales. Choristocarpaceae
This category contains valid brown algae species names. Alternate names (i.e. junior synonyms) are not included here. Italicized entries are articles about species in monotypic genera; these are redirected to their appropriate genus article.
This page was last edited on 9 February 2017, at 07:29 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Generally, it is one of several groups of multicellular algae; red, green and brown. [7] They lack one common multicellular ancestor, forming a polyphyletic group. In addition, blue-green algae (Cyanobacteria) are occasionally considered in seaweed literature. [8]
These are the brown algae, [57] —some of which may reach 50 m in length [58] —the red algae, [59] and the green algae. [60] The most complex forms are found among the charophyte algae (see Charales and Charophyta ), in a lineage that eventually led to the higher land plants.
However, total elimination of algae is considered unlikely in a hobby aquarium. Algae can be used as an bioindicator to inform an aquarist on water chemistry and other conditions. [2] Some species are intentionally cultivated within algae scrubbers. Few algae, such as marimo or red moss, are sought after for aquascaping in freshwater aquaria.
Fucoidan is a long chain sulfated polysaccharide found in various species of brown algae.Commercially available fucoidan is commonly extracted from the seaweed species Fucus vesiculosus (), Cladosiphon okamuranus, Laminaria japonica (kombu, sugar kelp) and Undaria pinnatifida ().