Roles of Algae

Algae Organism

• Algae are a group of species that consist of simple multi-cellular or uni-cellular organisms capable of making their own energy. These species are found throughout different parts of the world. Their main choice of habitat is the surface of the open bodies of water.

Bio-geological Role

• Algae are considered as one of the key organisms that first existed when life on earth began. Fossil records show that algae have existed on earth for over three million years. Scientists believe that algae provided the oxygen requirements for life to exist on earth. Because of its role in many different chemical processes, algae affect the overall global climate.

Role in Oxygen Production

• Algae undergo photosynthesis at a very high rate. Photosynthesis is the process in which an organism converts heat energy from the sun into chemical energy while also producing oxygen. Carbon dioxide is one of main compounds associated with global warming. Algae consume large amounts of carbon dioxide from the air and release oxygen back into the environment.

Ecological Role

• Algae are considered a food source for many microorganisms and fish alike. Certain organisms that maintain the ecological balance of the sea and the land require algae to maintain themselves and also grow. Many smaller fish species use algae as a source of food and also help in distributing it throughout other areas of the sea. Also, the mixture of algae and fungi create a food staple called Lichen. Lichen is a food source for many insects and land dwelling animals.

Overgrowth

• Algal blooms, which are a rapid accumulation of algae within a particular region, may cause toxic effects to aquatic animals. This imbalance is sometimes due to human causes, such as sewage outflow to a lake or river.