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REPLIES WILL BE SENT TO THE FISH-SCI LIST
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Many thanks Alan
I'll have a good read of Electrofihsing.net
Cheers
Chris
-----Original Message-----
From: Scientific forum on fish and fisheries <[log in to unmask]> On Behalf Of Temple, Alan
Sent: 26 April 2018 14:08
To: [log in to unmask]
Subject: Purchasing electrofishing equipment and electrofishing.net
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REPLIES WILL BE SENT TO THE FISH-SCI LIST <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
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 <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
> <>< <>< <>< <>< <>< <>< <><
>
>
>
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>
> ------------------------------
>
> 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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> ------------------------------
>
> End of FISH-SCI Digest - 24 Apr 2018 to 25 Apr 2018 (#2018-42)
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