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Subject: Limnology
Subject
Benthic macroinvertebrates
4
Algae
2
Aquatic biology
2
East Branch Lake (Pa.)
2
Freshwater ecology
2
Acid deposition
1
Algae -- Growth -- Measurement
1
Ankistrodesmus falcatus
1
Aquatic ecology -- Pennsylvania -- Kahle Lake
1
Aquatic insects
1
Aquatic plants
1
Aquatic weeds -- Control
1
Brook trout
1
Fish populations
1
Fishes -- Growth
1
Freshwater biology
1
Freshwater ecology -- Pennsylvania -- Bigger Run
1
Freshwater ecology -- Pennsylvania -- Longs Run
1
Kahle Lake (Pa.)
1
Mine drainage
1
Photosynthesis
1
Phytoplankton
1
Piney Reservoir (Clarion, Pa.)
1
Plankton -- Research
1
Primary productivity (Biology)
1
Stream ecology
1
Stream ecology -- Pennsylvania
1
Sunfishes
1
Typha
1
Water -- Pollution
1
White sucker
1
Zooplankton -- Pennsylvania -- Kahle Lake
1
Zooplankton -- Pennsylvania -- Piney Reservoir (Clarion)
1
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Comparative analysis of certain chemical and physical factors and their relation to the fish populations in three streams
Limnological study of Woodcock Reservoir with special reference to the primary productivity
Effects of a hydrogen sulfide effluent on the macroinvertebrate life in a single riffle of the North Fork
Macroinvertebrate recolonization of mine acid substrate in a single riffle of Cherry Run, Armstrong Co., Pennsylvania
Population dynamics of zooplankton in the Piney Reservoir
Limnological and ecological comparison of Bigger and Longs Run, Beaver and Washington Counties, Penna.
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