Seaweed (Marine macroalgae) is the term used to refer to
numerous species of algae and marine plants growing under water
in lakes, rivers, and oceans. Seaweeds fall into the category of
plants referred to as marine algae. They can be green (phylum
Chlorophyta), red (phylum Rhodophyta), or brown (phylum
Heterokontophyta) in color. Seaweeds are simple organisms that
typically dwell in saltwater, creating a strong base for many
marine food chains. They are generally found attached to a hard
surface within coastal areas. Seaweed can be small
(phytoplankton) or they can be large (Giant Kelp). However, the
majority of all seaweeds are medium sized, washing up on beaches
across the globe. While green algae are found in both marine and
fresh water, red and brown seaweed are discovered primarily in
marine waters. Green algae can thrive in damp places located in
sun-protected areas. Occupying the intertidal section of most
oceans, seaweeds are anchored to the ground by holdfasts, as
well as in the subtidal areas of tem