Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16783
Parasites of freshwater fish, I Fungi, Fungi (Saprolegnia and relatives) of fish and fish eggs
No abstract available.
Authors
G. L. Hoffman
Chemical quality of surface waters in Pennsylvania
Pennsylvania has an abundant supply of surface water of good quality. The average rainfall over the 45,300 square miles in the State is about 42 inches per year. Of this amount, about 50 percent appears in the streams as runoff. The combined mean annual runoff of the Delaware, Ohio, and Susquehanna Rivers, at their farthest downstream measuring points in the State, is in excess of 81,000 cubic fee
Authors
Charles N. Durfor, Peter W. Anderson
Variations in the chemical character of the Susquehanna River at Harrisburg, Pennsylvania
The chemical quality of the Susquehanna River at Harrisburg is influenced by three major factors: streamflow, anthracite and bituminous coal-mine drainage, and geology. Water samples collected at Harrisburg near the west bank of the Susquehanna River and those of western tributaries that drain limestone terranes are similar in chemical quality. The water is alkaline and contains calcium, magnesium
Authors
Peter W. Anderson
Estimating consumption of food by wintering waterfowl populations
No abstract available.
Authors
John L. Sincock
Observations of birds feeding on overwintering corn borer
No abstract available.
Authors
Don Fankhauser
Whirling disease of trouts caused by Myxosoma cerebralis in the United States
No abstract available at this time
Authors
G. L. Hoffman, C.E. Dunbar, A. Bradford
Common parasites of fishes
No abstract available at this time
Authors
G. L. Hoffman, C.J. Sindermann
Dangers of electric fishing: precautions to take
No abstract available at this time
Authors
R. Cuinat
[Book review] Taschenbuch der Fischkrankheiten fuur Fischereibiologen Tierarzte Fischzuchter und Aquarianer (Pocketbook of fish diseases for fishery biologists, veterinarians, fish culturists, and aquarium fanciers), by Erwin Amlacher
Review of: Taschenbuch der Fischkrankheiten, fu?r Fischereibiologen, Tiera?rzte, Fischzu?chter und Aquarianer. Erwin Amlacher. Jena, Fischer, 1961. xi, 286 p. illus.
Authors
S. F. Snieszko
Disease-protective symbiosis among fishes and other aquatic animals
There have been numerous observations of one species of animal removing parasites from another. These are, however, generally regarded as biological curiosities rather than as significant factors in the control of parasites or disease.
Authors
S. F. Snieszko