Geometric can play a role. Geometric (morphometry) will have a big influence on how bad or massive the problem gets. I always say the plant problems occur most in shallow water not in the deep middle areas of the pond.
Numerous variables can contribute to filamentous growths, but it will not grow if the nitrogen phosphorus ratio and light are not optimum for that specie of filamentous, no matter what the other factors are. Thus nutriens and light are the most important factors, others are seconday or lesser importance.
Once you start studying the filamentous algae you realize there are many different species. Each species no doubt prefers a unique nutrient P:N ratio and growing conditions. Similarily not all fish Be careful in lumping the ecological requirements (ethology) of all filamentous algae into one group.
Last edited by Bill Cody; 01/29/13 11:36 AM.
