Algae play significant roles as producers in aquatic ecosystems.Microscopic forms live suspended in the water column. o the presence or absence of flagella (as well as the number and For instance, algae living in snow contain carotenoid pigments in addition to chlorophyll, hence giving the surrounding snow a distinctive red hue. The term algae mean Aquatic Plants but differ from the plants in lacking a well-organized vascular conducting system and in having very simple reproductive structures. They are either motile or non-motile. Algae are usually green, but they can be found in a variety of different colours. ADVERTISEMENTS: In this article we will discuss about the classification of algae by various botanists. They are the main component of phytoplankton.As such, they contribute to the food base of most marine ecosystems.. Multicellular seaweeds called kelp may grow as large as trees. The second section addresses systematics and covers virtually all algal groups ranging from microalgae to ultraplankton with individual chapters devoted to each. Algae - Algae - Classification of algae: The classification of algae into taxonomic groups is based upon the same rules that are used for the classification of land plants, but the organization of groups of algae above the order level has changed substantially since 1960. Ecology of Algae. There are different types of algal classification There is three main Algae classification: Chlorophyceae – These are called green algae, due to the presence of pigments chlorophyll a and b. Divided into three parts, the book introduces the very latest ideas on the evolution of algae and the concept of classification and illustrates contrasting viewpoints. Algae are photosynthetic eukaryotic organisms. Algae possess the usual eukaryotic structures - Golgi apparatus, mitochondria, … •The current systems of classification of algae are based on the following main criteria: o kinds of photosynthetic pigments, o type or chemical nature of photosynthetic energy storage products o photosynthetic membranes’ (thylakoids) organization and other features of the chloroplasts. Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America. Algae exist in environments ranging from oceans, rivers, and lakes to ponds, brackish waters, and even snow. Algae Classification. Some of the motile and non-motile algae may form a colony known as Coenonbium. “The Structure and Reproduction of the Algae” based on the following […] They are commonly found in aquatic environments including freshwater, marine and brackish water. Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America. Some schools of scientists prefer certain characters of algae while the other choose the remaining ones. Examples are Chlamydomonas, Spirogyra, and Chara; Phaeophyceae – Also called as brown algae, they are predominantly marine. Classification by A. F. E. Fritsch (1935, 48): F. E. Fritsch (1935, 48) was the first who proposed a most comprehensive and authorative classification of algae in his book. Classification of algae 1. Again some botanists opt for the modern phylogenetic system. Due to its diverse nature, the algal classification is also a difficult task. The study of algae is called Phycology or algology. 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