Author:Chutter, FM; Noble, RGDate:May 1966In field ecological studies inferences must often be drawn from dissimilarities in numbers and species of organisms found in biological samples collected at different times and under various conditions.Read more
Author:Archibald, REMDate:1966In studies of the ecology of diatoms, particularly in the case of studies concerned in any way with organic pollution, one of the most important genera of diatoms concerned is the genus Nitzschia Hassall.Read more