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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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Population dynamics of zooplankton in the Piney Reservoir
Macroinvertebrate recolonization of mine acid substrate in a single riffle of Cherry Run, Armstrong Co., Pennsylvania
Effects of a hydrogen sulfide effluent on the macroinvertebrate life in a single riffle of the North Fork
Limnological study of Woodcock Reservoir with special reference to the primary productivity
Comparative analysis of certain chemical and physical factors and their relation to the fish populations in three streams
Comparisons of condition factors of Lepomis gibbosus linnaeus from Piney and East Branch Reservoirs of the Clarion River
Macroinvertebrate diversity and water depth of a pond fed by a constant temperature effluent
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
Primary productivity of the East Branch Clarion River Lake during the period of thermal stratification
Comparison of the aquatic macroinvertebrate communities among three feeder streams of the East Branch Clarion River Lake, Elk and McKean Counties, Pennsylvania
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