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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Ocean acidification will increase the iodine content of edible seaweeds and their consumers

PhysOrg 08 Dec 2018

Evidence is rapidly accumulating that ocean acidification and elevated temperatures will have catastrophic consequences for marine organisms and ecosystems. In fact, it is something we are already witnessing ... ....

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Government Says Keen to Uplift Seaweed Agriculture Farming

All Africa 07 Dec 2018

THE Minister for Trade and Industries, Ambassador Amina Salum Ali, says value addition has special importance in promoting seaweed farming in the country and that the construction of two seaweed processing factories was underway .......

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Seaweed feed not a 'silver bullet' for beef emissions

Irish Independent 07 Dec 2018

0 Comments Seaweed feed not a 'silver bullet' for beef emissions ... Seaweed-based feed is no silver bullet for methane reduction in cattle and further research is needed on its viability in Ireland given our island location and emission target challenges, a Teagasc scientist has said ... Seaweed feed not a 'silver bullet' for beef emissions ....

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Ocean acidification will increase the iodine content of seaweeds – and the billions of people ...

The Conversation 07 Dec 2018

Seaweed salad ... Yet many primary producers, including seaweeds, are predicted to thrive in the acidic oceans of the future – as they use CO₂ from the seawater to produce energy by photosynthesis. Humans have eaten seaweeds for tens of thousands of years and today the diets of billions of people, especially in Asia, are based on cultivated seaweeds....

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Seaweed sandwiches and pea crab salad

Scoop 05 Dec 2018

Returning mussel shells to the sea, turning them into fertiliser or a component of bioplastic were among an ocean of ideas canvassed at an annual Smart+Connected Aquaculture forum last Friday ... ....

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Seaweed Market: Regional Analysis and Business Opportunity and Global Scope by Forecast 2018 to 2023

Community news 04 Dec 2018

The wide range of applications of seaweed products means the seaweed market is certain to grow robustly over the forecast period, with the multiple end-use industries of seaweed ... By type, the global seaweed market is segmented into red seaweed, green seaweed, and brown seaweed....

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Global Alginates & Derivatives Market Analysis and Forecast : Jiejing, Tiantian Seaweed

Community news 03 Dec 2018

This report analyzes the alginates & derivatives market, in terms of region, type, and application. The global market is dominated by North America and Europe. Developing countries are emerging as leading exporters of alginates to the North American and European regions ... This region is projected to grow at the highest CAGR of 5.6% from 2014 to 2019....

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Seychellois entrepreneurs donate ground-breaking organic seaweed plant growth stimulant to Nature Seychelles

Nation 03 Dec 2018

Seaweed Seychelles Pty Ltd has donated a sample of its trailblazing product -- the organic seaweed liquid plant growth promoter -- to Nature Seychelles' Heritage Garden ... “For an organisation that is constantly looking for ways to keep its garden 100% organic, this locally produced Seaweed plant growth stimulant has been a welcome donation....

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Maine Seaweed Company Lands $600,000 Grant to Execute Innovative Idea for Industry Growth: Bringing Seaweed to the Bread Aisle

Public Technologies 29 Nov 2018

'Some of the most exciting things about Maine aquaculture right now are consumers' growing awareness of seaweed's nutritional benefits and the innovative products local businesses are making with it ... their business, but the state's seaweed aquaculture as a whole,' Pingree said....

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Want some kelp with your bread? Seaweed firm says you might

Bradenton Herald 29 Nov 2018

A Maine-based firm is receiving a $600,000 grant from the federal government to help develop a kelp-based additive for bread. The company is VitaminSea of Buxton. Democratic Rep. Chellie Pingree ... ....

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Feds to spend $600K to help Maine company make bread with seaweed

Bangor Daily News 28 Nov 2018

The federal government is awarding a Buxton company $600,000 in grant money to develop a seaweed additive for bread, U.S....

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From plastic to seaweed: having nature as an industrial partner

The Malta Independent 25 Nov 2018

The EU Strategy for Plastics in a Circular Economy was adopted in January ... ADVERTISEMENT ....

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Seaweed Could Make Cows Burp Less Methane and Cut Their Carbon Hoofprint

Slashdot 24 Nov 2018

By adding a small amount of seaweed to the animals' feed, researchers found, they could cut the cows' methane production by nearly 60% ... ambitious study in the months ahead, evaluating whether smaller amounts of a more potent form of seaweed can cut methane emissions even further....