A Screening of Fungi for Metabolites Inhibitory to the Growth of Bloom-Forming Blue-Green Algae

A Screening of Fungi for Metabolites Inhibitory to the Growth of Bloom-Forming Blue-Green Algae

Date: December 1970
Creator: Hardcastle, Ronald V.
Description: Since many approaches to dealing with algal blooms are inefficient, expensive, or harmful, it was concluded that a biologically-synthesized chemical agent, specifically inhibitory to pre-bloom algal cells, might prove helpful in controlling algal blooms. Fungi were chosen as the biological entities to investigate for such a chemical.
Contributing Partner: UNT Libraries
Ecological Studies of the Hudson River Near Indian Point

Ecological Studies of the Hudson River Near Indian Point

Date: April 1971
Creator: New York University. Medical Center. Institute of Environmental Medicine.
Description: "The general purpose of [this study is] to determine the ecological responses of the [Hudson] River to various classes of potential pollutants, so that the discharge of waste heat and radionuclides from the Indian Point Power Plant can be evaluated in context with these" (p. 1).
Contributing Partner: UNT Libraries
The Effect of Geosmin on the Growth of Bacillus cereus

The Effect of Geosmin on the Growth of Bacillus cereus

Date: August 1972
Creator: Barnes, Randall D.
Description: The purpose of this study was to determine the effect of varying concentrations of geosmin on the growth of Bacillus cereus.
Contributing Partner: UNT Libraries
Effect of Indole-3-Acetic Acid on the Nucleic Acids of Synchronous Cultures of Chlorella Pyrenoidosa

Effect of Indole-3-Acetic Acid on the Nucleic Acids of Synchronous Cultures of Chlorella Pyrenoidosa

Date: May 1972
Creator: Peterson, James Arthur
Description: It was the purpose of this study to investigate the effect of various concentrations of IAA on the nucleic acids of Chlorella pyrenoidosa TX 7-11-05. The time during the life cycle when the greatest effect occurred was investigated by the use of synchronous cultures.
Contributing Partner: UNT Libraries
A Qualitative Survey of the Airborne Algae, Protozoa, and Bacteria at the Denton Sewage Treatment Plant

A Qualitative Survey of the Airborne Algae, Protozoa, and Bacteria at the Denton Sewage Treatment Plant

Date: May 1968
Creator: Mahoney, Joseph L.
Description: This study had a three-fold purpose. First, it was decided to determine if algae and protozoa were emitted to the air at the Denton sewage treatment plant. The information obtained could be of future importance in the fields of algal and protozoan ecology and public health. Second, it was decided to make a survey of the airborne bacteria at this plant. Some researchers have described bacterial air contamination at similar sewage treatment plants, but the one in Denton has not been studied. Third, it was hoped that in this research some relationships could be found between the bacteria and the algae and protozoa in the air in the vicinity of the sewage aeration basin. It was hypothesized that pathogenic bacteria were carried in the air with these other organisms.
Contributing Partner: UNT Libraries
Transport of Viable Dissemules of Algae and Protozoa by Selected Diptera

Transport of Viable Dissemules of Algae and Protozoa by Selected Diptera

Date: August 1966
Creator: Revill, Donald L.
Description: This research was designed primarily to determine whether and to what extent several species of Dipteria (true flies) carry viable dissemules of algae and or Protozoa "in-flight."
Contributing Partner: UNT Libraries
Evaluation of the Chlorophyll/Fluorescence Sensor of the YSI Multiprobe: Comparison to an Acetone Extraction Procedure

Evaluation of the Chlorophyll/Fluorescence Sensor of the YSI Multiprobe: Comparison to an Acetone Extraction Procedure

Date: May 2001
Creator: Lambert, Patricia
Description: The purpose of this study was to examine the suitability of the YSI model 6600 Environmental Monitoring System (multiprobe) for long term deployment at a site in Lewisville Lake, Texas. Specifically, agreement between a laboratory extraction procedure and the multiprobe chlorophyll/fluorescence readings was examined. Preliminary studies involved determining the best method for disrupting algal cells prior to analysis and examining the precision and linearity of the acetone extraction procedure. Cell disruption by mortar and pestle grinding was preferable to bath sonication. Comparison of the chlorophyll/fluorescence readings from the multiprobe and the extraction procedure indicated that they were significantly correlated but temperature dependent.
Contributing Partner: UNT Libraries
An Investigation of Algae and Common Tastes and Odors in Fresh Water

An Investigation of Algae and Common Tastes and Odors in Fresh Water

Date: 1956
Creator: Harmon, John C.
Description: The purpose of this investigation was to isolate and grow algae common to the southwest in unialgal culture; to either sustain or grow one of the principal bloom-causing organisms, with emphasis on Microcystis aeruginosa; to isolate and culture actinomycetes from the same waters from which the algae were obtained; and to inoculate these algae with actinomycetes and determine their effects through development and deterioration.
Contributing Partner: UNT Libraries
Integrated Assessment of Hypoxia in the Northern Gulf of Mexico

Integrated Assessment of Hypoxia in the Northern Gulf of Mexico

Date: May 2000
Creator: National Science and Technology Council (U.S.). Committee on Environment and Natural Resources.
Description: This document details the ecological and economic effects of low oxygen (hypoxic) conditions in the Gulf of Mexico. This condition is caused by deforestation, river channelization, and the overuse of nitrogen in agricultural fertilizer. This document summarizes scientific evidence for the causes of hypoxia, the negative impact on Gulf of Mexico fisheries, and long-term national strategies for managing and mitigating the problem.
Contributing Partner: UNT Libraries
Harmful Algal Blooms in US Waters

Harmful Algal Blooms in US Waters

Date: October 2000
Creator: National Science and Technology Council (U.S.). Committee on Environment and Natural Resources.
Description: This document discusses the causes of harmful algae blooms and their impact on the environment, public health, and the economy. The document also discusses options for managing algal blooms and current federal efforts to address the problem.
Contributing Partner: UNT Libraries
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