LIMITING NUTRIENT DETERMINATION IN LOTIC ECOSYSTEMS USING A QUANTITATIVE NUTRIENT ENRICHMENT PERIPHYTOMETER

The decline of water quality in United States' lotic ecosystems (streams and rivers) has been linked to nonpoint source nutrient loading (U.S. EPA, 1990). Determining limiting nutrients in streams is difficult due to the variable nature of lotic ecosystems. We developed a quantitative passive d...

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Veröffentlicht in:Journal of the American Water Resources Association 1998-10, Vol.34 (5), p.1141-1147
Hauptverfasser: Matlock, Marty D., Matlock, Monty E., Storm, Daniel E., Smolen, Michael D., Henley, William J.
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container_end_page 1147
container_issue 5
container_start_page 1141
container_title Journal of the American Water Resources Association
container_volume 34
creator Matlock, Marty D.
Matlock, Monty E.
Storm, Daniel E.
Smolen, Michael D.
Henley, William J.
description The decline of water quality in United States' lotic ecosystems (streams and rivers) has been linked to nonpoint source nutrient loading (U.S. EPA, 1990). Determining limiting nutrients in streams is difficult due to the variable nature of lotic ecosystems. We developed a quantitative passive diffusion periphyton nutrient enrichment system, called the Matlock Periphytometer, to measure the response of attached algae (periphyton) to nutrient enrichment. The system is simple to build and provides quantitative nutrient enrichment of a surface for periphytic growth. The periphyton grow on a glass fiber filter, which allows complete recovery of periphyton for chlorophyll a analysis. A 14-kilodalton dialysis membrane was used as a biofilter to prevent bacterial and algal contamination of the nutrient solution. We determined the rates of diffusion of nitrogen and phosphorus ions across the Matlock Periphytometer's dialysis membrane and glass fiber filter over a 21-day period (42 and 22 mu g/cm super(2)/hr, respectively). We used the Matlock Periphytometer to determine the limiting nutrient in a woodland stream. Six replicates each of a control, nitrogen, and phosphorus treatment were placed in the stream for 14 days. The results indicated that phosphorus was the limiting nutrient in the stream for the period and location sampled.
doi_str_mv 10.1111/j.1752-1688.1998.tb04160.x
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Psychology</topic><topic>Ions</topic><topic>Natural water pollution</topic><topic>Nitrogen</topic><topic>nutrient limitation</topic><topic>periphyton</topic><topic>Phosphorus</topic><topic>Pollution</topic><topic>Water treatment and pollution</topic><toplevel>online_resources</toplevel><creatorcontrib>Matlock, Marty D.</creatorcontrib><creatorcontrib>Matlock, Monty E.</creatorcontrib><creatorcontrib>Storm, Daniel E.</creatorcontrib><creatorcontrib>Smolen, Michael D.</creatorcontrib><creatorcontrib>Henley, William J.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 1: Biological Sciences &amp; Living Resources</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy &amp; Non-Living Resources</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of the American Water Resources Association</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matlock, Marty D.</au><au>Matlock, Monty E.</au><au>Storm, Daniel E.</au><au>Smolen, Michael D.</au><au>Henley, William J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>LIMITING NUTRIENT DETERMINATION IN LOTIC ECOSYSTEMS USING A QUANTITATIVE NUTRIENT ENRICHMENT PERIPHYTOMETER</atitle><jtitle>Journal of the American Water Resources Association</jtitle><date>1998-10-01</date><risdate>1998</risdate><volume>34</volume><issue>5</issue><spage>1141</spage><epage>1147</epage><pages>1141-1147</pages><issn>1093-474X</issn><issn>0043-1370</issn><eissn>1752-1688</eissn><coden>WARBAQ</coden><abstract>The decline of water quality in United States' lotic ecosystems (streams and rivers) has been linked to nonpoint source nutrient loading (U.S. EPA, 1990). Determining limiting nutrients in streams is difficult due to the variable nature of lotic ecosystems. We developed a quantitative passive diffusion periphyton nutrient enrichment system, called the Matlock Periphytometer, to measure the response of attached algae (periphyton) to nutrient enrichment. The system is simple to build and provides quantitative nutrient enrichment of a surface for periphytic growth. The periphyton grow on a glass fiber filter, which allows complete recovery of periphyton for chlorophyll a analysis. A 14-kilodalton dialysis membrane was used as a biofilter to prevent bacterial and algal contamination of the nutrient solution. We determined the rates of diffusion of nitrogen and phosphorus ions across the Matlock Periphytometer's dialysis membrane and glass fiber filter over a 21-day period (42 and 22 mu g/cm super(2)/hr, respectively). We used the Matlock Periphytometer to determine the limiting nutrient in a woodland stream. 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0043-1370
1752-1688
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source Wiley Journals
subjects Algae
Analysis methods
Animal, plant and microbial ecology
Applied ecology
Applied sciences
aquatic ecosystems
Biological and medical sciences
Dialysis membranes
Diffusion
Ecosystems
Ecotoxicology, biological effects of pollution
Exact sciences and technology
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
Ions
Natural water pollution
Nitrogen
nutrient limitation
periphyton
Phosphorus
Pollution
Water treatment and pollution
title LIMITING NUTRIENT DETERMINATION IN LOTIC ECOSYSTEMS USING A QUANTITATIVE NUTRIENT ENRICHMENT PERIPHYTOMETER
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