Seaweed - Wikipedia
Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types of Rhodophyta (red), Phaeophyta (brown) and Chlorophyta (green) macroalgae.
Seaweed | Definition, Types, & Facts | Britannica
2024年10月3日 · Seaweed, any of the red, green, or brown marine algae that grows along seashores. Seaweeds are generally anchored to the sea bottom or other solid structures by rootlike ‘holdfasts,’ which perform the sole function of attachment and do not extract nutrients as do the roots of higher plants.
Algae vs Seaweed: What is the Difference? - American Oceans
The massive, multicellular algae known as seaweed, on the other hand, are a kind that can only be found in saltwater conditions. Seaweed has a more intricate structure than other types of algae, including stems, leaves, and roots. Seaweed can also be found in a wide range of forms, including small, delicate fronds and enormous, powerful plants.
What is seaweed? - NOAA's National Ocean Service
2024年6月16日 · Seaweed is the common name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies.
What is Seaweed? Everything You Need to Know - American …
Seaweed is the common name for a variety of different species of marine plants and algae that grow in the ocean and places like rivers, lakes, and other bodies of water. There are some seaweeds that are microscopic, like phytoplankton, that live suspended in the water column and provide the base for the majority of food chains.
Seaweed and Algae - Canadian Museum of Nature
2020年9月16日 · Seaweeds are divided into three main groups based on colour: brown, green and red algae. A well-known example of the first group is the giant kelps that form massive and ecologically important forests off the western coast of Canada and the United States. They are also edible and can be used to make kelp lasagne!
Three Types of Marine Algae (Seaweed) - ThoughtCo
2019年11月29日 · Marine algae, more commonly known as seaweeds, come in all shapes and sizes but are not plants. Learn interesting facts about these forms of sea life.
Algae | Definition, Characteristics, Classification, Examples, & Facts ...
2024年8月20日 · algae, members of a group of predominantly aquatic photosynthetic organisms of the kingdom Protista. Algae have many types of life cycles, and they range in size from microscopic Micromonas species to giant kelps that reach 60 metres (200 feet) in length.
Biology of Seaweeds - ScienceDirect
2016年1月1日 · Seaweeds are usually classified based on their pigments into three broad groups: red (Rhodophyta), green (Chlorophyta), and brown (Phaeophyta) algae. The red seaweeds are more diverse with more than 7000 species, followed by brown and green seaweeds with 2030 and 600 marine species, respectively, although the brown algal thalli are largest.
Sargassum | Marine Algae, Seaweed, Macroalgae | Britannica
Sargassum, genus of about 150 species of brown algae (family Sargassaceae) generally attached to rocks along coasts in temperate regions or occurring as pelagic (free-floating) algae in the open sea. The Sargasso Sea in the western Atlantic Ocean, which is often characterized by floating masses of.