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Periphyton Biomass Growth Rates Free Essay, Term Paper and Book Report

ABSTRACT Periphyton biomass growth was determined by placing twelve tiles in a local creek for a six week interval. There were four treatments, fast-light, fast-dark, slow-light and slow-dark, in each treatment there were three replications to show variation. Light was determined with a spherical densitometer and current was determined by visual comparison. The data was figured by using Anova Single Factor, t-test and Regression Analysis. The fast-light treatment had the best ratio of biomass and variation while the slow-light had the highest overall biomass production (variation=154.08). Regression analysis shows that there is a strong relationship between average water depth and average periphyton biomass, but a weak relationship between average canopy and average periphyton biomass. This could suggest that the more shallow the water, the more nutrients are available. INTRODUCTION Stream periphyton are known to be limited by an array of resources including light, flow, and nutrients (Munn 1987). There is moderate human impaction due to the construction and pollution fro......

Word Count: 1405
Page Count: 5.6  (250 words a page / double spaced)

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