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Author Topic: Electroshock fishing all but kills Redside shiner infestations  (Read 4150 times)

RalphH

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Electroshock fishing all but kills Redside shiner infestations
« on: June 14, 2020, 09:21:29 AM »
After convincing Provincial officials to try his idea for removing shiners from Paul Lake near Kamloops, Gene Tisdale's electro-fishing technique kills 85 to 90% of the invasive species species from the lake! Both trout and important aquatic species such as scuds and mayflies are returning to abundance after 2 seasons of treatment.

https://infotel.ca/newsitem/experiment-to-remove-invasive-fish-from-a-kamloops-lake-yields-positive-results/it74010?fbclid=IwAR3V3zaIplK5iOZoLMV4VND5F3CPBf0FpzsTvq-yD1mi2hVOgIc48DXvNl8
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Old Blue

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #1 on: June 14, 2020, 10:34:43 AM »
Hope they use it on Courtney
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psd1179

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #2 on: June 14, 2020, 11:07:43 AM »
very satisfied seeing so many fish killed at once.
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psd1179

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #3 on: June 14, 2020, 11:10:04 AM »
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clarki

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #4 on: June 14, 2020, 04:41:19 PM »
Interesting. I wasnt aware that you could selectively electro shock by calibrating the current to the size of the target species.
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RalphH

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #5 on: June 14, 2020, 06:03:34 PM »
looks like our friends at MOFLNR weren't aware of this either. It's a good find.Hopefully there is funding to continue this at Paul and expand to include lakes such as Courtney. I would love to fish Courtney if it had a very low population of shiners.
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Riverman

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #6 on: June 15, 2020, 05:56:32 AM »
What a great article. Paul Lake has always been a problem. Seeing the other parts of the the lake ecosystem rebounding is great. This looks like it can help many interior lakes. Great stuff. Looks way more cost effective and friendly than a massive poisoning is. There are quite a few candidates here in the interior. I wonder if it can be applied to perch. Seems likely. :)
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Riverman

RalphH

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #7 on: June 15, 2020, 08:53:18 AM »
More info on application of electroshock removal of invasive species in BC. Looks like Dragon Lake Goldfish are going to be targeted soon:

https://www.gofishbc.com/Blog/Conservation/Electroshocking-to-Control-Invasive-Species.aspx
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Knnn

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Re: Electroshock fishing all but kills Redside shiner infestations
« Reply #8 on: June 15, 2020, 10:30:01 AM »
Very interesting, thanks Ralph.

I did not see any information on the mortality (if any) of non-target species. 

Is the specificity of this method based on fish genetics or body mass?  (i see from one of the other links it is size).
« Last Edit: June 15, 2020, 10:49:17 AM by Knnn »
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