Seaweeds brown algae

In "Tc samples of two kinds of brown algae (one is IAEA seaweed Ag-1 Fucus serrantus taken from the Irish Sea near the Sellafield nuclear facility and the other is Fucus vesiculosus taken from the same area) measured by Koide and... 

These materials are another polysaccharide. The name derives from its original source, brown algae. The current commercial sources are brown seaweeds such as Laminaria digitata, L. hyperborea, Ascophyllium nodosum and Fucus serratus. Different properties are obtained in alginates from different seaweeds. The sources are rocky coasts in the United States, the United Kingdom, France and Norway. 

Suzuki Y, Takabayashi T, Kawaguchi T, Matsunaga K (1998) Isolation of an allelopathic substance from the crustose coralline algae, Lithophyllum spp., and its effect on the brown alga, Laminaria religiosa Miyabe (Phaeophyta). J Exp Mar Biol Ecol 225 69-77 Svensson CJ, Pavia H, Toth G (2007) Do plant density, nutrient availability, and herbivore grazing interact to affect phlorotannin plasticity in the brown seaweed Ascophyllwn nodosum. Mar Biol (in press), doi 10.1007/s00227-007-0649-5 Swanson AK, Druehl LD (2002) Induction, exudation and the UV protective role of kelp phloro-tannins. Aquat Bot 73 241-253... 

In the sea, the brown algae give unusual diterpenes, tlK red seaweeds polyhalogenated mono- and higher terpenes and C,5 acetogenins, and the green seaweeds cyclopeptides and masked-aldehyde sesquiterpenes (Table 9.1). Freshwater algae are fewer and, as for as it is known, unproductive. 

Brown algae in the genera Stypopodium and Sargassum, in a kind of opportunistic association, provide a refugee for grazeable seaweeds, promoting biodiversity (Hay 1992, 1996). Distasteful metabolites released by the brown algae are responsible for these effects. 

Boland, W. and Muller, D. G., On the odour of the Mediterranean seaweed Dictyopteris membranacea new Cu hydrocarbons from the marine brown algae, Tetrahedron Lett., 28, 307, 1987. 

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