7123 ‎(3)‎

• UCREFRP Catalog Number: 7123
• Author: Klima, E. F.
• Title: Voltage and pulse rates for inducing electrotaxis in twelve coastal pelagic and bottom fishes
• USFW Year: 1972
• USFW - Doc Type: Journal of the Fisheries Research Board of Canada
• Copyright Material: YES

KLIMA: ELECTROTAXIS OF TWELVE FISHES
TABLE S. Summary of leading studies with round scad and thread herring at 1. S
v/10 cm and two pulse rates.
Time (sec)
Pulses Avg, no. Optimal
per sec 2 laps 5 laps of laps response index
Rouud scads
l5 13.2~4.OOb 45.1 ~=3.46 12.23.29 3.70.97
25 14.87.32 44.3(3)° 5.53.70 6.514.07(3)
Thread herring
]S~ 23.8~]O.lSto 59.823.97 13.2~G.17 5.22.78
25 17.1 X4.50(9) 38 . S f 27.61(2) 3.6 f 1. l 8 6.4 X4.21(2)
"Ten fish in each test.
bAverage and 95°Jo confidence interval.
°Number of fish that responded.
Five fish in these tests and 10 in others.
~ y
~a
Z j
W LL
Q O
W
a
J
O
g
~LS volts
~1,3 Volts
^4.5 Volt
~3.0 Volts
15 25 35 45 55
PULSES /SEC
FiG. 6. Times to swim one lap and average numbers of
laps swum at various pulse rates and voltages for rough
scad. Each plotted value is for an initial lot of 5-10 fish.
required is about 79.4 kw. An increase in pulse rate
to 25/sec would require 132.1 kw for 15 v/m.
This proposed fishing system could be developed
with off-the-shelf components now available (G.
McGee personal communication; C. I{reutzer
personal communication).
Acknowledgments
This report is based upon a dissertation submitted
to the Graduate School of Utah State University in
partial fulfillment of the requirements for the degree
of Doctor of Philosophy. Acknowledgment is extended
1613
to Dr W. F. Sigler and Dr R. Kramer for invaluable
assistance in the analysis of data.
I would also like to thank Messrs G. McGee and
R. Emerson of General Electric Corporation, Bay St.
Louis, Mississippi, for their engineering advice and for
updating of the pulse generator for this study. Messrs
D. A. Wickham, G. M. Russell, and R. S. Ford, Jr.
assisted in the collection of live specimens. I would
further like to acknowledge the assistance of Messrs
W. Seidel and F. J. Hightower who were able to maintain
electrical equipment in working condition.
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