Growth and morphology of anabaena strains (Cyanophyceae, cyanobacteria) in cultures under different salinities

Abstract

Twenty-one Anabaena strains from freshwater origin were incubated in media containing 0%, 50% and 100% seawater. Growth, morphology and recovery were determined. All strains appeared to be halotolerant towards 50% seawater conditions. They all kept their normal morphology. A much less general pattern was observed for 100% seawater conditions. Mutual strain or species differences in halotolerance are discussed, also with regard to the appearance of Anabaena in habitats with fluctuating salinities. © 1984 British Phycological Society.