| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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 ARCHIVE |
EPA 600-3-77-035 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| 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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ix, 118 pages : illustrations ; 28 cm. |
| Abstract |
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. |
| Notes |
"EPA-600/3-77-035." EPA contract no. 68-01-0752. EPA project officer: Kenneth E.F. Hokanson. Includes bibliographical references (pages 58-61). |
