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Subject: Aquatic biology
Subject
Benthic macroinvertebrates
2
Limnology
2
Fish populations
1
Food chains (Ecology) -- Pennsylvania -- Pymatuning Reservoir
1
Freshwater ecology
1
Multitrophic interactions (Ecology) -- Pennsylvania -- Pymatuning Reservoir
1
Predatory aquatic animals -- Pennsylvania -- Pymatuning Reservoir
1
Snails -- Pennsylvania -- Pymatuning Reservoir
1
Water -- Pollution
1
White sucker
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Comparative analysis of certain chemical and physical factors and their relation to the fish populations in three streams
Comparison of the aquatic macroinvertebrate communities among three feeder streams of the East Branch Clarion River Lake, Elk and McKean Counties, Pennsylvania
Consequences of predator-specific defenses on food web interactions
Study of the dilution effect of a small tributary on the macroinvertebrate community of an acid mine stream
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