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REPLIES WILL BE SENT TO THE FISH-SCI LIST
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Chris, you ask an important question. Jim did a good job answering and I
have little to add except to mention that, as you know, purchasing
electrofishing equipment best suited to your sampling conditions is often
not a trivial undertaking. For a good aid, see the "Buyer's Guide" on
electrofishing.net
(In addition, electrofishing.net is built to serve the electrofishing
community and is full of useful information and tools for purposes as
standardization).
Alan
***********************************************************
Alan J. Temple, Ph.D.
Lead Fish & Wildlife Biologist, Curriculum Manager
USFWS- National Conservation Training Center
698 Conservation Way
Shepherdstown, WV 25443 ><)))*>
304.876.7440
304.876.7234 (fax)
[log in to unmask]
http://training.fws.gov
***********************************************************
>
> Date: Wed, 25 Apr 2018 21:00:17 +0000
> From: Chris Harrod <[log in to unmask]>
> Subject: Generator-based electrofishing equipment
>
> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> REPLIES WILL BE SENT TO THE FISH-SCI LIST
> <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>
> Folks
>
> If anyone has any recommendations for shore-based generator electrofishing
> =
> kit (multiple anode, for large, low to high conductivity rivers with
> salmon=
> ids AND small bodied native fishes), I'd be very keen to hear from them.
>
> The market seems to have changed since I was last looking to buy kit!
>
> Cheers
> Chris
>
>
> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> Professor Chris Harrod
> (Fish & Aquatic Ecology)
>
> Email: [log in to unmask]<mailto:[log in to unmask]>
> Twitter: @chris_harrod
> www.harrodlab.net<http://www.harrodlab.net>
> HarrodLab: Fish and Stable Isotope Ecology Laboratory
> Instituto de Ciencias Naturales Alexander von Humboldt,
> Universidad de Antofagasta,
> Avenida Angamos 601, Antofagasta, Chile
> Chile Mobile: +56 9 7399 7792
> Chile Office: +56 55 2637400
> <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>
>
>
> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> For information, send INFO FISH-SCI to [log in to unmask]
>
> The FISH-SCI List Archive
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>
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> [log in to unmask]
> <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>
> ------------------------------
>
> Date: Wed, 25 Apr 2018 15:24:29 -0700
> From: Jim Reynolds <[log in to unmask]>
> Subject: Re: Generator-based electrofishing equipment
>
> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> REPLIES WILL BE SENT TO THE FISH-SCI LIST
> <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>
> Chris,
>
> I'm unsure if any EU countries make and sell shore-based electrofishing
> systems. However, I'm pretty sure that such systems are not sold as
> off-the-shelf products in North America (although tow-boat systems are). Of
> course, there are several manufacturers who could make such a system for
> you, delivered ready to fish. You can also make your system locally by
> purchasing an electrofishing control unit made for boats and buying the
> parts you need for a DIY project. You may also wish to buy anode poles
> ready to fish because these are somewhat complicated and each must have a
> safety switch.
>
>
>
> These systems are easy to build. You need the control unit, the anodes you
> wish to include, the insulated cable and connectors and a 3-5 kW generator
> with 240-V output (assuming you really do deal with low-to-high water
> conductivity, say, 50 to 1000 uS/cm). Your control unit should deliver up
> to 1000 peak volts (pulsed DC) and 20 peak amps. Be sure your anodes are
> built to carry high current; most are. Your cathode need be nothing more
> than a steel bar or plate, buried in the shoreline to get a good earth
> ground. Of course, the anodes must be wired in parallel to avoid one
> off-anode shutting down the rest. General guidance for construction (e.g.,
> appropriate wire gauges) can be found at nctc.fws.gov. Enter 241 FW 6 in
> the search window and download the PDF.
>
>
>
> A word of caution: shore-based unit are the most hazardous form of
> electrofishing because they combine the high voltage and current of boat
> systems with the wading method of backpack systems. Your generator should
> have an emergency shutoff switch and should be attended by an observer
> during electrofishing operations. Your protocol should include a buddy
> system for each anode with a means of communication or line-of-sight for
> all buddy pairs.
>
>
>
> I hope this is helpful. If you have more questions please contact me
> directly. If I can't answer something, I have talented colleagues who can.
> ~jim
>
>
>
>
> Jim Reynolds
> 4404 N Winchester Road
> Apache Junction, AZ 85119
>
> On Wed, Apr 25, 2018 at 2:00 PM, Chris Harrod <[log in to unmask]> wrote:
>
> > ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> > REPLIES WILL BE SENT TO THE FISH-SCI LIST
> > <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
> >
> > Folks
> >
> > If anyone has any recommendations for shore-based generator
> electrofishing
> > kit (multiple anode, for large, low to high conductivity rivers with
> > salmonids AND small bodied native fishes), I'd be very keen to hear from
> > them.
> >
> > The market seems to have changed since I was last looking to buy kit!
> >
> > Cheers
> > Chris
> >
> >
> > ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>
> > Professor Chris Harrod
> > (Fish & Aquatic Ecology)
> >
> > Email: [log in to unmask]<mailto:[log in to unmask]>
> > Twitter: @chris_harrod
> > www.harrodlab.net<http://www.harrodlab.net>
> > HarrodLab: Fish and Stable Isotope Ecology Laboratory
> > Instituto de Ciencias Naturales Alexander von Humboldt,
> > Universidad de Antofagasta,
> > Avenida Angamos 601, Antofagasta, Chile
> > Chile Mobile: +56 9 7399 7792
> > Chile Office: +56 55 2637400
> > <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
> >
> >
> >
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> >
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> ------------------------------
>
> End of FISH-SCI Digest - 24 Apr 2018 to 25 Apr 2018 (#2018-42)
> **************************************************************
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>
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