Alga consider seaweed to refer any of a large number of ocean benthic algae that are multicellular, macrothallic (''large-bodied''), and thus differentiated from most algae that tend towards microscopic size (Smith, 1944). Seaweeds are found among the green alga, red alga, and brown alga algae. Some cyanobacteria may also be counted as seaweeds. Seaweeds are named after terrestrial "weeds", and are not to be confused with things like seagrass which are vascular plants and not algae. == Structure == [[Image:Kelp_forest_Otago_1s.JPG|right|thumb|250px|Kelp forest Otago, New Zealand ]] Seaweeds may have an appearance that resembles non-arboreal terrestrial plants. * Thallus (tissue): the algal body ** blade: a flattened structure that is somewhat leaf-like *** sorus: spore cluster *** ''on Fucus'' -- Air bladders: float-assist organ (on blade) *** ''on kelp'' -- floats: float-assist organ (in between blade and stipe) ** stipe: a stem-like structure, may be absent ** holdfast: specialized basal structure providing attachment to the bottom The stipe and front are collectively known as frond. == Uses == Seaweeds are used extensively as food by coastal peoples, most particularly in Japan but also in Korea, China, Indonesia, Peru, the Canadian Maritimes, Scandinavia, Ireland, Wales, Philippines, and Scotland, among other places. For example, laver is a red alga used in Wales to make laverbread, and in Japan dried, formed into sheets called nori, and used to wrap sushi. Irish moss is another red alga used in producing various food additives. Seaweed is also used for the production of Alginate, a versatile product that is used for a whole range of applications. These include the production of Agar which is used very widely in microbiology as a substrate for culturing organisms. Alginates are also used in the production of foodstuffs to improve texture and mouth-feel. Typical products are ice-cream and a range of proprietary desserts (see Carrageenan). Other seaweeds may be used as seaweed fertiliser. == See also == :Category:Sea vegetables'' ==References== *Smith, G.M. 1944. ''Marine Algae of the Monterey Peninsula, California''. Stanford Univ., 2nd Edition. ==External link== * [http://www.seaweed.ie/ The Seaweed Site], information on all aspects of seaweeds and marine algal biology Algae Aquatic organisms
''Seaweeds are to be found among all the major algal groups: the cyanophyta, red algae, green algae, and brown algae algae.'' This simply isn't true. First, there are no seaweeds among the blue-green algae, which are now often not even considered algae. Second, there are several other major groups of algae, such as the diatoms and dinoflagellates, which do not include any seaweeds. -- user:Josh Grosse I realize that the dividing line between large filamentous forms and microthallic algae as to the term seaweeds in common parlance is fuzzy -- However, we do have three species regarded as "seaweed" in Hawaiian waters that are in the (old) group of blue-green algae (i.e., cyanophytes), and there are terrestrial and freshwater examples (not "seaweeds" of course). Not sure about your second point? I did not list groups that do not have any seaweeds in them. User:Marshman I guess you are saying these others ARE "major groups" -- I'd agree with that point, certainly. I'll reword the text. User:Marshman That is indeed what I meant. Checking the blue-green algae bit, it seems you're right, so I've added them back to the article (as cyanobacteria, which is a more common name nowadays). Feel free to adjust as you see fit, of course. I was going to suggest that if phycologists are purists about this "common parlance" name, we could develop a paragraph about it. Maybe if we get further disagreements. Thanks for input. User:Marshman
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Words begining with Seaweed:
Seaweed
Seaweed
Seaweed
Seaweeds
Seaweed_fertiliser
Seaweed_rebellion
Seaweed
Alga consider seaweed to refer any of a large number of ocean benthic algae that are multicellular, macrothallic (''large-bodied''), and thus differentiated from most algae that tend towards microscopic size (Smith, 1944). Seaweeds are found among the green alga, red alga, and brown alga algae. Some cyanobacteria may also be counted as seaweeds. Seaweeds are named after terrestrial "weeds", and are not to be confused with things like seagrass which are vascular plants and not algae. == Structure == [[Image:Kelp_forest_Otago_1s.JPG|right|thumb|250px|Kelp forest Otago, New Zealand ]] Seaweeds may have an appearance that resembles non-arboreal terrestrial plants. * Thallus (tissue): the algal body ** blade: a flattened structure that is somewhat leaf-like *** sorus: spore cluster *** ''on Fucus'' -- Air bladders: float-assist organ (on blade) *** ''on kelp'' -- floats: float-assist organ (in between blade and stipe) ** stipe: a stem-like structure, may be absent ** holdfast: specialized basal structure providing attachment to the bottom The stipe and front are collectively known as frond. == Uses == Seaweeds are used extensively as food by coastal peoples, most particularly in Japan but also in Korea, China, Indonesia, Peru, the Canadian Maritimes, Scandinavia, Ireland, Wales, Philippines, and Scotland, among other places. For example, laver is a red alga used in Wales to make laverbread, and in Japan dried, formed into sheets called nori, and used to wrap sushi. Irish moss is another red alga used in producing various food additives. Seaweed is also used for the production of Alginate, a versatile product that is used for a whole range of applications. These include the production of Agar which is used very widely in microbiology as a substrate for culturing organisms. Alginates are also used in the production of foodstuffs to improve texture and mouth-feel. Typical products are ice-cream and a range of proprietary desserts (see Carrageenan). Other seaweeds may be used as seaweed fertiliser. == See also == :Category:Sea vegetables'' ==References== *Smith, G.M. 1944. ''Marine Algae of the Monterey Peninsula, California''. Stanford Univ., 2nd Edition. ==External link== * [http://www.seaweed.ie/ The Seaweed Site], information on all aspects of seaweeds and marine algal biology Algae Aquatic organisms
Seaweed
''Seaweeds are to be found among all the major algal groups: the cyanophyta, red algae, green algae, and brown algae algae.'' This simply isn't true. First, there are no seaweeds among the blue-green algae, which are now often not even considered algae. Second, there are several other major groups of algae, such as the diatoms and dinoflagellates, which do not include any seaweeds. -- user:Josh Grosse I realize that the dividing line between large filamentous forms and microthallic algae as to the term seaweeds in common parlance is fuzzy -- However, we do have three species regarded as "seaweed" in Hawaiian waters that are in the (old) group of blue-green algae (i.e., cyanophytes), and there are terrestrial and freshwater examples (not "seaweeds" of course). Not sure about your second point? I did not list groups that do not have any seaweeds in them. User:Marshman I guess you are saying these others ARE "major groups" -- I'd agree with that point, certainly. I'll reword the text. User:Marshman That is indeed what I meant. Checking the blue-green algae bit, it seems you're right, so I've added them back to the article (as cyanobacteria, which is a more common name nowadays). Feel free to adjust as you see fit, of course. I was going to suggest that if phycologists are purists about this "common parlance" name, we could develop a paragraph about it. Maybe if we get further disagreements. Thanks for input. User:Marshman
Seaweed
Hi! Wikipedia:Introduction to Wikipedia! Hope you enjoy contributing to Wikipedia. Wikipedia:Be bold in updating pages. Here are some links that you might find useful: * Try the Wikipedia:Tutorial. If you have less time, try Wikipedia:How to edit a page. * To sign your posts (on Wikipedia:Tutorial (Talk pages), Votes for deletion page etc.) use
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SB | SC | SD | SE | SF | SG | SH | SI | SJ | SK | SL | SM | SN | SO | SP | SR | SS | ST | SU | SW | SX | SY | SZ |Words begining with Seaweed:
Seaweed
Seaweed
Seaweed
Seaweeds
Seaweed_fertiliser
Seaweed_rebellion
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