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Subject: Re: Electrofishing methods, Allison's observations.
From: kolar cynthia <[log in to unmask]>
Reply-To:Academic forum on fisheries ecology and related topics <[log in to unmask]>
Date:Wed, 30 Apr 1997 10:58:46 -0500

TEXT/PLAIN (21 lines)

Fish E's,
With regard to the stress of shocking vs. other techniques on fish:  I
work at a facility with drainable research ponds (much like hatchery
ponds) and we have worked with crappie in them before --using seining to
sample and found them to be very fragile fish.  They seem to do
better when we drain the pond, but still they definitely suffered from
handling/sampling stress.
Jim Triplett at Pittsburgh State University, Kansas, said that they see a
lot of handling stress in crappie, but that it is much alleviated (> 95%
survival) if fish are collected by shocking.  He said that they see high
mortality if crappie are collected by seine and transported elsewhere--that
the high mortality isn't seen sometimes until a couple weeks later, but
that if fish are shocked prior to transportation, survival is great.

Cindy Kolar
Sam Parr Biological Station
Illinois Natural History Survey
6401 Meacham Road
Kinmundy, IL  62854
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