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Aquiculture, Hugh T. Ramsey

Masters Theses

There is every evidence that the productivity of our ponds, lakes, and streams can be materially increased by the intelligent application of present scientific knowledge to this problem.

For many years it has been recognized that our streams and lakes are becoming more and more barren of fish, and other aquatic life, but remedial measures, until recently, have been applied to only one-half of the problem. Efficient fish hatchery systems are maintained, both state and federal, and millions of fingerlings and legal-size fish are planted each year in an effort to increase the fish population of our waters, and to …

The Relation Of The Carbon Dioxide Tension Of The Water To The Hemoglobin Content Of The Blood, The Gaseous Content Of The Swim-Bladder, And The Ability Of The Fish To Extract Oxygen From The Water At Low Oxygen Tensions, Spurgeon Meek Wingo

Masters Theses

Probably in no field of biology is reasoning from analogy depended upon more than it is in human physiology to answer the questions which constantly arise in the mind of the investigator. This is particularly true of that phase of respiration which attempts to explain the apparent secretion of oxygen into the blood at low oxygen tensions. The secretion theory has found much favor with certain physiologists and in briefly presenting their case in his Text Book of General Physiology (1932) Mitchell has said as a point in its favor, "Glands of the swim bladders of many species of fishes …