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Subject: Phytoplankton
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Algae
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East Branch Lake (Pa.)
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Freshwater phytoplankton
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Limnology
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Effect of nitrate and phosphate enrichments on phytoplankton productivity in the East Branch Clarion River Lake as determined by the carbon-14 rapid bioassay technique
Monthly net phytoplankton population and ecology in Kahle Lake, Clarion-Venango Counties, Pennsylvania
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