Periphyton definition

Periphyton means algae on the bottom of a water body. In rivers or streams, these forms are typically found attached to logs, rocks, or other substrates, but when dislodged the algae will become part of the seston.
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Examples of Periphyton in a sentence

  • Rapid Bio-assessment Protocols for Use in Streams and Wadeable Rivers: Periphyton, Benthic Macroinvertebrates and Fish.

  • Periphyton sampling shall be conducted once every three years, beginning in fall 2005.

  • Periphyton samples were diluted by dispensing a known volume of the enzyme subsample into a pre-weighed centrifuge tube, and adding DI as necessary, to achieve appropriate hydrolysis rates for the assays.

  • Periphyton samples shall be analyzed and quantified for soft algae composition and diatom community composition using a ▇▇▇▇▇▇ Cell and conduct a diatom proportional count on a sub-sample of each of the three replicate periphyton samples.

  • Periphyton Sampling shall be conducted once every three years, beginning in fall 2006 at sites ▇▇▇-▇▇▇, ▇▇▇-▇▇▇ and EBR-004.

  • Periphyton collections will have taken place in summer 2007, with project results to be reported in spring 2008.

  • Periphyton cover by substrate type is dealt with in a similar manner, where substrate types are given optima and tolerances along each gradient based on their distribution, and then site water quality predictions based on those optima weighted by relative cover.

  • This report is an update on the “state of the science” of the Periphyton Stormwater Treatment Area (PSTA) phosphorus (P) removal technology.

  • Rapid bioassessment protocols for use in streams and wadeable rivers: Periphyton, macroinvertebrates and fish, 2nd edition.

  • Periphyton plays a critical role in the food web as a food source and prey refuge.