Preliminary checklist of oscillatoriaceae (cyanophyta), Goalpara District, Assam, India.

The present studies enumerated 68 species of family- Oscillatoriaceae isolated from freshwater of different sites of Goalpara district, Assam. From the total number of species eleven numbers of genera like Katagnymene 1.47%, Porphyrosiphon 1.47%, Polychlamydum 1.47%, Symploca 1.47%, Microcoleus 1.47%, Hydrocoleum 1.47%, Spirulina 8.82%, Phormidium 17.64%, Lyngbya 19.12% and Oscillatoria 45.58%. These strains were cultured using Algal Broth Culture & Chu-10 media for isolation. Present investigation has been made for identification and taxonomic account.