Polyphosphate Storage Dynamics Across a Gradient of Phosphorous Enrichment

Accurately assessing how algal-dominated biofilms in streams respond to anthropogenic phosphorous enrichment is crucial for ensuring sustainable agricultural land use. Understanding phosphorous storage dynamics particularly in the form of polyphosphate can assist in creating more effective nutrient criteria. The purpose of this study is to examine polyphosphate storage dynamics across a gradient of agricultural impairment in 19 Pennsylvania streams. This study sought to determine the quantity of Polyphosphate stored in response to phosphorous availability. Results indicate biofilms are able to store polyphosphate in both low and high concentration SRP streams. These results may give evidence to support both the “overplus” response and the “luxury” response at both ends of the phosphorous gradien