Coast of Japan, Korea, and China.
Characteristics. The brown colour of these algae results from the dominance of the xanthophyll pigment fucoxanthin, which masks the other pigments, Chlorophyll a and c (there is no Chlorophyll b), beta-carotene and other xanthophylls. Food reserves are typically complex polysaccharides, sugars and higher alcohols. Other types of algae found in lakes include: Euglenoids, dinoflagullates, brown algae, stoneworts/brittleworts, and desmids. This list is not inclusive of all the kinds of algae that are found in freshwater. Most freshwater algae do not cause problems in lakes. The Phaeophyceae or brown algae (singular: alga), is a large group of mostly marine multicellular algae, including many seaweeds of colder Northern Hemisphere waters. They play an important role in marine environments, both as food and for the habitats they form. Brown algae is the largest type of algae. Brown algae is in the phylum Phaeophyta, which means dusky plants.. Brown algae is brown or yellow-brown in color and found in temperate or arctic waters. Brown algae typically have a root-like structure called a holdfast to anchor the algae to a surface. Brown algae are edible algae found off the coast of Japan, Korea, and China. Brown algae are used for a variety of conditions including cancer, fibromyalgia, arthritis, stress, weight loss, heart disease, high cholesterol, and many other conditions. Brown algae is the largest, most complex type of algae. This type of marine algae is brown, olive or yellowish-brown in color. Brown algae contains contains chlorophyll a and c and a pigment called fucoxanthin, which gives it its color. Fucoxanthin is not found in other algae or plants.
http://www.seaweed.ie/algae/phaeophyta.php http://www.ecy.wa.gov/programs/wq/plants/algae/lakes/OtherFreshwaterAlgae.html https://en.wikipedia.org/wiki/Brown_algae http://marinelife.about.com/od/plants/tp/typesofalgae.htm http://www.webmd.com/vitamins-supplements/ingredientmono-1248-BROWN%20ALGAE.aspx?activeIngredientId=1248&activeIngredientName=BROWN%20ALGAE http://marinelife.about.com/od/plants/p/brownalgae.htm
where is brown algae found