Influence of physical and chemical factors on the distributional pattern of Cyanobacteria in Kumaon Region

Cyanobacteria are a group of haploid oxygenic photosynthetic blue-green algal prokaryotes. They belong to the largest, most diverse and widely distributed group of Prokaryotes. These belong to the most archaic organisms on the earth. Cyanobacteria occur in a variety of habitats and its growth is influenced by several physical and chemical factors of the environment. This paper discusses the influence of several physical and chemical factors on the growth of Cyanobacterial diversity of Himalayas with special reference to Kumaon Himalayas.