7979

• UCREFRP Catalog Number: 7979
• Author: Tyus, H. M.
• Title: Fish Radiotelemetry
• USFW Year: 1982.
• USFW - Doc Type: Theory And Application For High Conductivity Rivers.
• Copyright Material: NO

FIGURES
Number Pa e
1 Radio signals from a transmitter passing through the
air-water interface .............................................. 4
2 Radio signals from an implanted fish to.receiving systems
illustrating different types of antennas ......................... 9
3 River holding pen, Green River, Utah ............................. 18
4 Initial incision of anesthetized Colorado squawfish .............. 19
5 Insertion of AVM fish module into anesthetized Colorado
squawfish ........................................................ 20
6 Suturing Colorado squawfish with surgically implanted
radio transmitter ................................................ 20
7 Relationships between relative signal reception strengths
for three antenna arrangements and received signal
distances for transmitters positioned at the surface,
lm and 2m below the surface ..................................... 24
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TABLES
Number page
1 Specifications of mercury batteries .............................. 6
2 Specifications of lithium batteries .............................. 7
3 Summary of radio tagging studies ................................. 13
4 Water conductivity, Green River, Utah, 1980 ...................... 22
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