Polyphosphorous Storage Dynamics in Stream Biofilms
Start Date
10-11-2017 8:00 PM
End Date
10-11-2017 9:59 PM
Description
How algal-dominate biofilms in streams respond to phosphorus (P) enrichment and store polyphosphate (Poly-P) has not been fully elucidated. Understanding the dynamics of how P is stored as Poly-P can have various implications for assessing nutrient status and criteria of agriculturally impacted streams. The purpose of this study was to compare the Poly-P concentration of algal dominated biofilms across a gradient of P conditions in 19 Pennsylvania streams. SRP concentrations varied from 2 mg/L to 20 mg/L. Other variables were sampled as well to investigate their influence on Poly-P storage. Preliminary Poly-P data from an artificial stream experiment suggests that algae treated with high concentration phosphorus pulses had greater polyphosphate content.
Keywords
polyphosphorous, phosphorus, agriculture
Type
Poster
Session
Poster session
Language
eng
Polyphosphorous Storage Dynamics in Stream Biofilms
Elaine Langone Center, Terrace Room
How algal-dominate biofilms in streams respond to phosphorus (P) enrichment and store polyphosphate (Poly-P) has not been fully elucidated. Understanding the dynamics of how P is stored as Poly-P can have various implications for assessing nutrient status and criteria of agriculturally impacted streams. The purpose of this study was to compare the Poly-P concentration of algal dominated biofilms across a gradient of P conditions in 19 Pennsylvania streams. SRP concentrations varied from 2 mg/L to 20 mg/L. Other variables were sampled as well to investigate their influence on Poly-P storage. Preliminary Poly-P data from an artificial stream experiment suggests that algae treated with high concentration phosphorus pulses had greater polyphosphate content.