Macroalgae for the Marine Aquarium
These marine plants are crucial to life in the ocean as their terrestrial equivalents are to life on land. Virtually all animals depend on the ability of plants to use sunlight to make food materials by the process of photosynthesis. This really is accomplished by the chemical agent chlorophyll, present in all plants and responsible for the characteristic green colour. Their habitat is generally restricted by this fact although in clear tropical waters they are detected growing as deep as 200 m ; even so, less than 1% of all of the world's seas are offered to the marine plants. Photosynthesis also creates the marine alga and also oxygen are accountable for a sizeable portion of our needs in this respect. Most of the oxygen producers are microscopic single cell organisms or phytoplankton. Jointly with similarly sized critters they formed the amazingly vast group understood only the first link of several important food chains, as plankton. When affected some planktonic organisms are capable of emitting a faint light; this is usually called phosphorescence, and can occasionally be regarded as a weak blue glow on the surface of the water during the night. One other important groups of seaweed are red alga, brown, and the green. While all three groups include chlorophyll additional pigments in the red and brown algae mask it, and these plants are often further coloured to create purples, and corrodes. Ordinarily the green algae occupy the highest positions on the coast, under them the crimsons last of all, and also appear the browns. Together these three groups account for over 600 species of algae around the coastal waters.