1. Introduction
Pond water and effluent contain a varied mixture of mineral and
organic byproducts, including organic carbon compounds, inorganic
and organic species of nitrogen, phosphorus, and silicon, both in
suspension and solution, as well as a variety of microorganisms. Someof
these constituents exert a direct consumption of dissolved oxygen (DO)
in chemical reactions, in respiration, or in degradation of complex
organics by aerobic and facultative bacteria, while others have an
indirect effect on DO by stimulating the growth of photosynthetic
and/or heterotrophic organisms in the receiving waters.