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Biology

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Masters Theses & Specialist Projects

1985

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Full-Text Articles in Life Sciences

A Preliminary Investigation Of The Effect Of Storm Events On The Concentration Of Volatile Organic Compounds In The Lost River Cave System, Warren County, Kentucky, Francis Michael Cretella Aug 1985

A Preliminary Investigation Of The Effect Of Storm Events On The Concentration Of Volatile Organic Compounds In The Lost River Cave System, Warren County, Kentucky, Francis Michael Cretella

Masters Theses & Specialist Projects

Samples of cave water were analyzed for volatile organic compounds during four separate storm events. The major compounds detected were toluene, 1,1,1-trichloroethane, trans-1,2-dichloroethylene, methylene chloride, and 1,1-dicloroethane. Minor compounds detected were trichloroethylene, tetrachloroethylene, 1,1-dichloroethylene, and ethylbenzene. These compounds were detected in varying amounts at each of the three study sites. During a storm event, the levels of each contaminant changed significantly at all three sites studied. Two effects were observed when a storm event occurred. The first effect was the dilution of the volatile organic compounds during the storm event. These effects were related to the amount of rainfall and …


Age & Growth Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, Douglas Timpe May 1985

Age & Growth Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, Douglas Timpe

Masters Theses & Specialist Projects

Age and growth parameters of paddlefish from Lake Cumberland were investigated from September 1983 through July 1984. Sex ratios observed were 60 percent male and 40 percent female. The average total length for all paddlefish was 135.3 cm with fish captured in net tackle having a smaller body size than those caught on snag lines. Fish from the Cumberland River exhibited a greater mean body length than those from other parts of the lake, and females were longer than males. The average body weight was 11.8 kg and showed similar trends as body length. Net-captured paddlefish weighed less than those …


The Reproductive Biology Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, John Hageman Mar 1985

The Reproductive Biology Of The Paddlefish, Polyodon Spathula (Walbaum), In Lake Cumberland, Kentucky, John Hageman

Masters Theses & Specialist Projects

The reproductive biology of the paddlefish (Polyodon spathula) was studied on specimens collected from Lake Cumberland, Kentucky, from September 1983 to July 1984. A total of 500 specimens was studied. Reproductive activity was observed on 17 April 1984 in the Big South Fork of Lake Cumberland. Seasonal differences were observed in sex ratios with more males than females occurring in the winter and spring. Movements were observed throughout the year, but these were accentuated prior to reproduction in the spring. Lake Cumberland paddlefish became sexually mature by Age Group V in males and VIII in females. In the …