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in subjects: "aquatic environment"

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Limnological Survey of Sacony Creek Basin, Berks County, Pennsylvania

Samples of water, fish, and benthic macroinvertebrates collected at 10 sampling stations over a 10-month period indicate that Sacony Creek and its major tributaries possess water of good to excellent quality. No excessive quantities of dissolved nutrients, oxidizable matter, or fecal coliform bacteria were detected. Fish inhabitants include a sizable wild trout population in the upper Sacony basin and a diverse warm-water population, dominated by white suckers (Catostomus commersoni), in the lo… more

Date: August 1976

Creator: Barker, James L. & Kulp, Kenneth P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Water-Quality Study of Tulpehocken Creek, Berks County, Pennsylvania, Prior to Impoundment of Blue Marsh Lake

From introduction: This report is limited to the presentation and discussion of chemical, physical, and bacteriological data collected within Tulpehocken Creek basin before April 1975.

Date: September 1977

Creator: Barker, James L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

A Comparison of the Carbon Dioxide and Oxygen Rate of Change Methods for Measuring Primary Productivity

The purpose of this study was to demonstrate the variability of oxygen and carbon dioxide rate of change methods for measuring primary productivity and respiration in an aquatic environment.

Date: May 1969

Creator: Trotter, Dennis M.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Physical, Chemical, and Biological Relations of Four Ponds in the Hidden Water Creek Strip-Mine Area, Powder River Basin, Wyoming

From introduction: The purpose of the study was to describe the differences between ponds that developed within and abandoned mine site and in control ponds not affected by mining.

Date: July 1977

Creator: Wangsness, David J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Aquatic Disposal Field Investigations, Duwamish Waterway Disposal Site, Puget Sound, Washington: Appendix D, Volume 1, Appendix F

Appendix containing data on the recolonization of benthic macrofauna over a deep-water disposal site in the Duwamish River influenced portion of Elliott Bay. It accompanies a report on the chemical and physical effects of open-water disposal of dredged material from the Duwamish River into Elliot Bay as part of a study to determine the effects of disposal sites on organisms and the quality of surrounding water.

Date: June 1978

Creator: Harman, Robert A. & Serwold, John C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Aquatic Disposal Field Investigations, Duwamish Waterway Disposal Site, Puget Sound, Washington: Appendix D, Volume 1

The following report describes work done by the Marine and Freshwater Ecology Branch, Corvallis Environmental Research Laboratory (CERL), Environmental Protection Agency (EPA), Corvallis, Oregon. The study was conducted on the chemical and physical effects of open-water disposal of dredged material from the Duwamish River into Elliot Bay, Washington.

Date: June 1978

Creator: Baumgartner, D. J.; Schults, Donald W. & Carkin, J. B.

Item Type: Report

Partner: UNT Libraries Government Documents Department