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Subject: Freshwater ecology
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Benthic macroinvertebrates
2
Limnology
2
Water -- Pollution
2
Aquatic biology
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Aquatic ecology
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Fishes -- Growth
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Study of the dilution effect of a small tributary on the macroinvertebrate community of an acid mine stream
Macroinvertebrate recolonization of mine acid substrate in a single riffle of Cherry Run, Armstrong Co., Pennsylvania
Comparisons of condition factors of Lepomis gibbosus linnaeus from Piney and East Branch Reservoirs of the Clarion River
Relationships between aquatic macrophytes and the chemical and physical composition of the substrate in Kahle Lake, Clarion-Venango Counties, Pennsylvania
Biological, chemical and physical properties of Town Run, Clarion County, Pennsylvania ; a stream influenced by bituminous strip mine drainage
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