Nature is VERY inovative in transferring species, especially tiny ones such as bacteria and algae. Species distribution, location and movement are a science. Many of the hundreds of thousands of algae species are specialists favoring or only growing in unique conditions be it eutrophic, mesotrophic or oligotrophic with wide differences in each category. Many are generalists 'doing' well, or rampant or just surviving in a wide range of conditions (pH, hardness, macro and micro nutrients in conjunction with external influences). Add competition factors into the mix and it becomes quite complex.
Last edited by Bill Cody; 08/16/11 08:10 PM.
