Blue Moon, as kenc indicated, if you allow the wood ducks to dwell in the long run, in larger population, they will take down your pond pretty quickly. It starts about 50, when they stir up the banks, or deep dive to cool down during hot days, as well as to forage.
pH, up to 100, no an issue.
Bacteria, you'll see a climb steadily as the population hit 30. Once it hits 50, the level climbs alarmingly. As the population hits 75, bacteria level don't double or triple from 50, the bacteria level climbs at an astronomical level. Base on where and what they eat, bacteria level impact to your pond is different. We have city lakes, roughly between 5 to 10 acres, which get monitored constantly due to human contacts for recreations. The management teams monitor and control both permanent and migratory residence based on the impact criteria. For a 5 acres, they don't allow the population to exceed 150, although these lakes are constantly receiving influent water sources, and the same rate of effluent output. Yours is influent, without effluent, which you may want to cap at 20.
Pathogenic, same as bacteria.
Last edited by Leo Nguyen; 04/25/13 04:10 PM.
