Electrofishing As A Sampling Method

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back mounted units can range
anywhere from 100V to over 1000V DC with amperage from 10-60A. Maximum
output power also varies from about 8Kw-70Kw. All backpack units offer the
ability to select different levels of output and some of the more costly
models offer different waveform selection to maximize the efficiency of
battery use. Some models may last only a couple of hours at a medial output
while others incorporate secondary batteries to provide longer periods of
use. Using high-energy pulses of electricity is often preferred to a
constant level of output, although intense pulses may be harmful to smaller
fishes.
Backpack electrofishing units can be somewhat costly; lower end models
having only basic features are priced around $1500. The more elaborate
models can cost in excess of $2000.
When using backpack electrofishing units in an environment such as
a small stream, there are several conventions that may be followed to
enhance the productivity of the technique. Site ...

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