Seaweed

Seaweed refers to several species of macroscopic, multicellular, marine algae that live near the seabed (benthic).

The term includes some members of the red, brown, and green algae. Seaweeds can also be classified by use (as food, medicine, fertilizer, filtration, industrial, etc.). The study of seaweed is known as phycology.

Taxonomy

A seaweed may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. As these three groups do not have a common multicellular ancestor, the seaweeds are in a polyphyletic group. In addition, some tuft-forming bluegreen algae (Cyanobacteria) are sometimes considered to be seaweeds — "seaweed" is a colloquial term and lacks a formal definition.

Structure

Seaweeds' appearance somewhat resembles non-arboreal terrestrial plants.

thallus: the algal body

lamina or blade: a flattened structure that is somewhat leaf-like
- sorus: a spore cluster
- on Fucus, air bladder: a floatation-assisting organ on the blade
- on kelp, float: a floatation-assisting organ between the lamina and stipe
stipe: a stem-like structure, may be absent
holdfast: a specialized basal structure providing attachment to a surface, often a rock or another alga
haptera: a finger-like extension of the holdfast anchoring to a benthic substrate

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Seaweed

Latest News for: Seaweeds

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Marine Aquaculture and Seaweed Cooperation of China—ASEAN

Business Wire 22 May 2019

ZHU HAI CITY, China--(BUSINESS WIRE)--From May, 17th to 18th in 2019, “China-ASEAN Center for Joint Research and Promotion of Marine Aquaculture Technology” and “China Seaweed Base for International Science & Technology Cooperation” established by Sun Yat-sen University and Ocean ......

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Local scientist says brown seaweed on beaches can be harmful

WPTV 22 May 2019

DELRAY BEACH, Fla. — WPTV is committed to Protecting Paradise ... Whether you’re in deep or on the shore brown floating seaweed known as sargassum is difficult to miss ... Haber says excessive seaweed was one of the reasons she moved from the Keys ... Palm Beach County won’t remove the brown seaweed from beaches unless it’s a public safety threat ... ....

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Lý Sơn’s seaweed and seafood leaves impression on young diners

Vietnam News 21 May 2019

" width="130" border="0" height="100" src="http.//image.vietnamnews.vn/uploadvnnews/Article/2019/5/21/12629_IMG-5411.JPG" >My family was lucky enough to have the chance to enjoy bòng bong (seaweed) and fresh garlic salad during a recent trip to Lý Sơn Island in Quảng Ngãi Province ... ....

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New guidelines for sustainable European seaweed

Public Technologies 21 May 2019

A new report gives scientific guidance to help meet a growing global demand for seaweeds while also protecting resources and the environment ... PEGASUS provides guidelines on the status quo, best practices, legislation and regulations that currently apply to seaweed production, focusing on seaweed as a food or food supplement....

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Alaska’s fledgling commercial seaweed industry grows

Centre Daily Times 20 May 2019

Alaska's fledgling commercial seaweed ......

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Alaska's fledgling commercial seaweed industry grows

Richmond Times Dispatch 20 May 2019

ANCHORAGE, Alaska (AP) — Alaska's fledgling commercial seaweed industry is growing, with producers excited about this year's harvest .......

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Unidentified, hair-like seaweed covers Auckland beach

Stuff 20 May 2019

A strange kelp, which looks like shaggy clumps of ginger hair, has stumped beachgoers .......

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Dorothy van den Honert: No to drones, yes to seaweed

The Berkshire Eagle 20 May 2019

PITTSFIELD —I can think of three common activities that people willingly engage in that kill each other in huge numbers. The first, obviously is war. The second thing is permitting anyone .......

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Commercial Seaweeds Market Analysis by Process Chain, Demand, Size, Trends and Technology Insights Report 2019 by Major Key Players by MRFR Research to 2023

Community news 20 May 2019

Based on type, the Global Commercial Seaweeds Market has been segmented into red seaweeds, brown seaweeds, and green seaweeds ... Brown seaweeds contains iodine and tyrosine, which help in maintaining thyroid function of the body ... By type, the global commercial seaweeds market has been classified as red seaweeds, brown seaweeds, and green seaweeds....

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Alaska’s fledgling commercial seaweed industry growing

The Bellingham Herald 19 May 2019

Alaska's fledgling commercial seaweed industry is growing, with producers excited about this year's harvest. The Anchorage Daily News reports there were no commercial seaweed farmers in Alaska five years ago .......

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Scientists puzzled by arrival of invasive seaweed in Co Mayo

The Irish Times 19 May 2019

Researchers from NUI Galway are puzzled by the appearance of non-native seaweed on the Co Mayo coast ... Genetic analysis ... “We are hoping that publicity generated by this find might encourage others to look more closely at seaweed forests so we can see if there is any more golden kelp out there.” ...   . . ....

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Alaska's fledgling commercial seaweed industry growing

Waco Tribune-Herald 19 May 2019

ANCHORAGE, Alaska (AP) — Alaska's fledgling commercial seaweed industry is growing, with producers excited about this year's harvest. There were no commercial seaweed farmers in Alaska five years ago, though there have long been subsistence seaweed harvests along Alaska coasts ... The seaweed harvest cycle occurs when other big fisheries are at a lull....