What is the scientific name for seaweed?

Question

to be specific, im looking for the scientific name for Brazillian seaweed.

Answer 1

There are over 9000 species in existence.

Brazilian Red seaweed, Laurencia obtusa

Hope that helps.

Answer 2

Thats a tough question, considering that there are many types of seaweeds in Brazil.  You probably should be more specific and ask again, but to get you started here are some possibles seaweeds found in Brazil:

Greville    Type species: Gracilaria bursa-pastoris (S.G. Gmelin) P.C. Silva

Gracilariopsis  Type species: Gracilariopsis lemaneiformis (Bory de Saint-Vincent) E.Y. Dawson, Acleto & Foldvik

Hypnea   Type species: Hypnea musciformis (Wulfen) J.V. Lamouroux

Sargassum  Type species: Sargassum natans (Linnaeus) Gaillon

Good Luck!

Answer 3

Three groups of seaweeds are recognised, according to their pigments that absorb light of particular wavelengths and give them their characteristic colours of green, brown or red.

Seaweeds are marine algae: saltwater-dwelling, simple organisms that fall into the rather outdated general category of "plants". Most of them are the green (about 1200 species), brown (about 1750 species) or red (about 6000 species)  Most people know two major groups of seaweeds: wracks (members of the brown algal order Fucales such as Fucus) and kelps (members of the brown algal order Laminariales such as Laminaria), and some have heard of Carrageen or Irish Moss (a red alga, Chondrus crispus) and Dulse or Dillisk (also a red alga, Palmaria palmata). Seaweeds make up the Sargasso Sea, a large ocean gyre in the western Atlantic where drift plants of the genus Sargassum accumulate. Seaweeds are very important ecologically: they dominate the rocky intertidal in most oceans, and in temperate and polar regions cover rock surfaces in the shallow subtidal.  The Bull or Giant Kelp (Macrocystis) is one of the largest plants in the world) and in California forms an important assocation with the Sea Otter.

The main food species grown by aquaculture in China, Korea and Japan are Nori (Porphyra, a red alga), Kombu or Kunbu (Laminaria or Saccharina: brown algae) and Wakame (Undaria, also a brown alga). In Japan alone, the total annual production value of nori amounts to >US$2 billion, one of the most valuable crops produced by aquaculture in the world. In most western countries food and animal consumption is relatively restricted and there has not been any great pressure to develop mass cultivation techniques.