Brown algae can be seen in forms varying from single stalks and hollow sacs to compact masses and feathery growths. One interesting feature of red algae is the ability to become skeletonized by extensive calcification, which protects them from grazing, by herbivorous fish. Sea grasses and mangroves are the 2 groups that live successfully in marine environments. There are about 45 species of sea grasses which can be found mainly in tropical and subtropical marine habitats. Turtlegrass can be found in quiet, shallow areas of the tropics.
Eelgrass forms immense fields in the shallow waters off the coast of Europe and North America.
The wave-swept coasts of Europe and North America provide a home for surfgrass. Mangroves can be found in shallow coastal areas of tropical and subtropical waters the world over. There are 12 major groups of these shallow-rooted trees worldwide. Mangroves give food and shelter to a unique group of organisms found nowhere else in the world. Inc All rights reserved.