Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Instrumentation to monitor location of fish continuously in experimental channels /
Author Jahoda, Joseph R.
CORP Author Bayshore Systems Corp., Springfield, Va.;Environmental Research Lab. Duluth, Minn.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory-Duluth, Monticello Ecological Research Station,
Year Published 1977
Report Number EPA 600/3-77/035; EPA-68-01-0752
Stock Number PB-267 944
OCLC Number 38732989
Subjects Fishes--Monitoring--Minnesota. ; Fishes--Effect of temperature on. ; Fishes--Minnesota--Monitoring.
Additional Subjects Hydrophones ; Temperature measuring instruments ; Fishes ; Monitors ; Biotelemetry ; Underwater tracking ; Acoustic detection ; Ultrasonic frequencies ; Thermistors ; Design ; Pulse modulation ; Preamplifiers ; Transmitters receivers ; Radiofrequency interference ; Data processing ; Decoders ; Bioinstrumentation
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-77-035 Headquarters Library/Washington,DC 01/30/2013
EJBD  EPA 600-3-77-035 c.1 Headquarters Library/Washington,DC 03/07/2014
EKCD  EPA 600/3-77/035 CEMM/GEMMD Library/Gulf Breeze,FL 06/26/2018
ELBD  EPA 600-3-77-035 AWBERC Library/Cincinnati,OH 01/29/2019
ELDD  EPA 600/3-77/035 CCTE/GLTED Library/Duluth,MN 08/09/2002
ESAD  EPA 600-3-77-035 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-267 944 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation ix, 118 pages : illustrations ; 28 cm.
This study resulted in the development and construction of equipment to continuously monitor the position and temperature of up to 20 fish in a water channel 486 meters long, 3 meters wide, and 1 meter deep. The system uses miniature sonic transmitters (tags) operating in the 51 kHz to 366 kHz frequency range which were implanted in 500 gram or heavier fish. The battery operated tags were pulse modulated and designed for over 1 year operational life. A temperature sensitive thermistor controlled the repetition rate of the tag providing the temperature of the fish to an accuracy of 1 degree C. The nominal range of the polyurethane encapsulated tag was several hundred feet. Sixteen hydrophones were located at 30.5 meter intervals in the water channel. A control console contained a manually-operated, frequency-stepped receiver which could select any individual hydrophone, thus locating the fish to within plus or minus 15.25 meters. Up to 20 individual fish could be monitored. Automatic operation and recording of the data was considered in the design of the system for future equipment.
"EPA-600/3-77-035." EPA contract no. 68-01-0752. EPA project officer: Kenneth E.F. Hokanson. Includes bibliographical references (pages 58-61).