Charles W. Boylen

Fish Movement Among Lakes: Are Lakes Isolated (2008)

Robert A. Daniels, Richard S. Morse, James W. Sutherland, Robert T. Bombard, Charles W. Boylen

The concept of a lake as an isolated unit is a central theme in research and management of freshwater systems. Support is based on direct observations of lake communities. Studies undertaken in the...

Submersed Littoral Vegetation Distribution: Field Quantification and Experimental Analysis of Sediment Types from Onondaga Lake, New York (2006)

Madsen, John D., Smart, R. M., Eichler, Lawrence W., Boylen, Charles W., Sutherland, James W., Bloomfield, Jay A.

Onondaga Lake, located in upstate New York near Syracuse, has been heavily impacted by industrial and domestic effluent. Due to these impacts, the native littoral vegetation had largely disappeared....

Factors Affecting the Contribution by Epiphytic Algae to the Primary Productivity of an Oligotrophic Freshwater Lake1

Sheldon, Richard B., Boylen, Charles W.

A diatom-dominated population of epiphytic algae was studied in an oligotrophic lake to determine the factors which limit epiphyte growth and to measure their contribution to primary productivity....

Macromolecular Synthesis and Degradation in Arthrobacter During Periods of Nutrient Deprivation

Scherer, Carin G., Boylen, Charles W.

Cells of Arthrobacter atrocyaneus and A. crystallopoietes, harvested during their exponential phase, were starved in 0.03 M phosphate buffer (pH 7.0) for 28 days. During this time, the cells...

Ecological Consequences of Long-Term Exposure of Anabaena variabilis (Cyanophyceae) to Shifts in Environmental Factors

Collins, Carol D., Boylen, Charles W.

Cultures of Anabaena variabilis were exposed to different light intensities, and the time course of photoadaptation was measured by photosynthetic rate and changes in pigmentation. A shift down in...

Microbiological Survey of Adirondack Lakes with Various pH Values

Boylen, Charles W., Shick, Marcy O., Roberts, Deborah A., Singer, Robert

Nine high-altitude oligotrophic Adirondack lakes in upstate New York having water of pH 4.3 to 7.0 were surveyed for total bacterial numbers and possible adaptation of the microbial communities to...

Intracellular Substrates for Endogenous Metabolism During Long-Term Starvation of Rod and Spherical Cells of Arthrobacter crystallopoietes

Boylen, Charles W., Ensign, Jerald C.

Cells of Arthrobacter crystallopoietes, harvested during growth as spheres and as rods, were starved by shaking at 30 C in phosphate buffer for 30 days, during which time they maintained 100%...

Survival of Arthrobacter crystallopoietes During Prolonged Periods of Extreme Desiccation

Boylen, Charles W.

Cells of Arthrobacter crystallopoietes mixed in sand and air-dried have survived for up to 6 months after an initial period in which approximately half the cells lost their viability. Comparative...

Ratio of Teichoic Acid and Peptidoglycan in Cell Walls of Bacillus subtilis Following Spore Germination and During Vegetative Growth

Boylen, Charles W., Ensign, Jerald C.

Cell walls were isolated from cells of Bacillus subtilis strain Marburg during synchronous outgrowth of spores, during the two synchronous cell divisions which followed, and at various times during...

Influence of Seasonal Temperature on the Temperature Optima of Bacteria in Sediments of Lake George, New York

Tison, David L., Pope, Daniel H., Boylen, Charles W.

Temperature optima for the heterotrophic utilization of glucose and an amino acid mixture were determined throughout the year in sediments from Lake George, N.Y. The temperature optimum decreased...

Installation and Use of the Microscope Within a Gastight Glove Box

Boylen, Charles W.

The adaptation of a high-resolution phase-contrast microscope for glove box use, which allows the stage and focusing knobs in the glovebox, although oculars and camera remain outside, is described.

Factors Affecting the Contribution by Epiphytic Algae to the Primary Productivity of an Oligotrophic Freshwater Lake1

Sheldon, Richard B., Boylen, Charles W.

A diatom-dominated population of epiphytic algae was studied in an oligotrophic lake to determine the factors which limit epiphyte growth and to measure their contribution to primary productivity....

Macromolecular Synthesis and Degradation in Arthrobacter During Periods of Nutrient Deprivation

Scherer, Carin G., Boylen, Charles W.

Cells of Arthrobacter atrocyaneus and A. crystallopoietes, harvested during their exponential phase, were starved in 0.03 M phosphate buffer (pH 7.0) for 28 days. During this time, the cells...

Ecological Consequences of Long-Term Exposure of Anabaena variabilis (Cyanophyceae) to Shifts in Environmental Factors

Collins, Carol D., Boylen, Charles W.

Cultures of Anabaena variabilis were exposed to different light intensities, and the time course of photoadaptation was measured by photosynthetic rate and changes in pigmentation. A shift down in...

Microbiological Survey of Adirondack Lakes with Various pH Values

Boylen, Charles W., Shick, Marcy O., Roberts, Deborah A., Singer, Robert

Nine high-altitude oligotrophic Adirondack lakes in upstate New York having water of pH 4.3 to 7.0 were surveyed for total bacterial numbers and possible adaptation of the microbial communities to...

Intracellular Substrates for Endogenous Metabolism During Long-Term Starvation of Rod and Spherical Cells of Arthrobacter crystallopoietes

Boylen, Charles W., Ensign, Jerald C.

Cells of Arthrobacter crystallopoietes, harvested during growth as spheres and as rods, were starved by shaking at 30 C in phosphate buffer for 30 days, during which time they maintained 100%...

Survival of Arthrobacter crystallopoietes During Prolonged Periods of Extreme Desiccation

Boylen, Charles W.

Cells of Arthrobacter crystallopoietes mixed in sand and air-dried have survived for up to 6 months after an initial period in which approximately half the cells lost their viability. Comparative...

Ratio of Teichoic Acid and Peptidoglycan in Cell Walls of Bacillus subtilis Following Spore Germination and During Vegetative Growth

Boylen, Charles W., Ensign, Jerald C.

Cell walls were isolated from cells of Bacillus subtilis strain Marburg during synchronous outgrowth of spores, during the two synchronous cell divisions which followed, and at various times during...

Influence of Seasonal Temperature on the Temperature Optima of Bacteria in Sediments of Lake George, New York

Tison, David L., Pope, Daniel H., Boylen, Charles W.

Temperature optima for the heterotrophic utilization of glucose and an amino acid mixture were determined throughout the year in sediments from Lake George, N.Y. The temperature optimum decreased...

Installation and Use of the Microscope Within a Gastight Glove Box

Boylen, Charles W.

The adaptation of a high-resolution phase-contrast microscope for glove box use, which allows the stage and focusing knobs in the glovebox, although oculars and camera remain outside, is described.

Bacterial Community Structure of Acid-Impacted Lakes: What Controls Diversity?▿ †

Percent, Sascha F., Frischer, Marc E., Vescio, Paul A., Duffy, Ellen B., Milano, Vincenzo, McLellan, Maggie, ...

Although it is recognized that acidification of freshwater systems results in decreased overall species richness of plants and animals, little is known about the response of aquatic microbial...