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Subject: Re: Small fish sampling methods
From: George Morgan <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Mon, 23 Mar 2009 10:16:04 -0400

text/plain (93 lines)

Hello Mark,

In Ontario (Canada) we adopted the Nordic method (I believe this is also the EU standard?) for our biodiversity work. It works well in lakes >10ha and catches a large size range of individuals. I have attached copies (ours and the original Scandinavian versions) of the manual.

Best Wishes


>>> frederic hartog <[log in to unmask]> 3/23/2009 10:08 AM >>>
Hi mark,


I frequently use a small beam trawl like the third model in the article and caught many three-spine stickleback and other small fish with it in different types of habitat. It is easy to use from a relatively small boat.


Estuaries Vol. 15, No. 3, p. 360-367 September 1992
Comparison of Beam Trawls for Sampling
Macrofauna of Posidonia Seagrass
S. E. McNEIL[.
Fisheries Research Institute
New South Wales Fisheries
P.O. Box 21
Cronulla, New South Wales 2230




> Date: Mon, 23 Mar 2009 11:35:18 +0000
> From: [log in to unmask] 
> Subject: Re: Small fish sampling methods
> To: [log in to unmask] 
> Mark Ravinet wrote:
> > Dear Fish-SCI
> >
> > I am a relatively new PhD student looking at the ecology and evolution 
> > of the three-spine stickleback in Ireland. I am currently 
> > planning/assessing my methodology for sampling and I was wondering if 
> > anyone could suggest some references?
> >
> > I've found several good papers on comparisons of fish sampling methods 
> > but a lot of these concentrate on larger fish. If anyone could point 
> > me in the direction of older or more obscure references dealing with 
> > small fish or with sticklebacks specifically that I might have missed, 
> > I would be very grateful indeed!
> >
> > I should be clear that I am keen that my current planned sampling of 
> > rivers, lakes, estuarine and coastal marine habitats requires 
> > relatively small numbers of individuals (30-40). Regardless, I would 
> > like my samples to be as representative possible and I am keen to find 
> > out just how representative the current accepted methods for 
> > stickleback sampling (pond-netting and minnow traps) are.
> >
> > Many thanks
> >
> > Mark Ravinet
> > ------------------------------
> > Mark Ravinet
> > PhD Student
> > School of Biological Sciences
> > Queen's University Belfast
> > Medical Biology Centre
> > Lisburn Road
> > Belfast
> > BT9 7BL
> > Tel:02890972103
> > Mob: 07841675863
> > Email: [log in to unmask] 
> > ------------------------------
> Hi Mark,
> There's a nice manual about "Sampling methods applied to fisheries 
> science" written by Cadima and others and published in FAO, check 
> EJ

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