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Subject: Re: FISH-SCI Digest - 8 Jul 2014 to 10 Jul 2014 (#2014-87)
From: Dominique Roche <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Fri, 11 Jul 2014 08:06:15 +0000
Content-Type:text/plain
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Hi Gary,

The paper below describes two options: glass spheres (see cospheric.com) or a culture of Chlorococcum aquaticum algae (www.utex.org). I've used glass spheres and they worked very well for the PIV setup described in Ryerson and Schwenk. I've also used non-expanded polystyrene beads in the past (cheaper but tricky to get): http://jeb.biologists.org/content/217/3/414.short

Hope that helps.
Cheers
Dom

Ryerson, W. G. and Schwenk, K. (2012). A simple, inexpensive system for digital particle image velocimetry (DPIV) in biomechanics. J. Exp. Zool. A Comp. Exp. Biol. 317, 127-140.

---
Dominique Roche
Postdoctoral Fellow
Institut de Biologie
Université de Neuchâtel
________________________________________
From: Scientific forum on fish and fisheries [[log in to unmask]] on behalf of FISH-SCI automatic digest system [[log in to unmask]]
Sent: July 10, 2014 6:00 PM
To: [log in to unmask]
Subject: FISH-SCI Digest - 8 Jul 2014 to 10 Jul 2014 (#2014-87)

There are 2 messages totalling 137 lines in this issue.

Topics of the day:

  1. neutrally buoyant organic particles (2)

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----------------------------------------------------------------------

Date:    Thu, 10 Jul 2014 10:26:24 -0400
From:    Gary Grossman <[log in to unmask]>
Subject: neutrally buoyant organic particles

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Greetings, I'm looking for advice on the use a small, organic neutrally
buoyant organic particle that could be used to measure current velocity as
it passes through the field of view of a video camera. I'm looking for
sources and of course if you have had good or bad experiences with one or
more product -- that information would be helpful too. cheers, g2

--
Gary D. Grossman, PhD

Professor of Animal Ecology
Warnell School of Forestry & Natural Resources
University of Georgia
Athens, GA, USA 30602

Research & teaching web site - http://grossman.myweb.uga.edu/
<http://www.arches.uga.edu/%7Egrossman>

Board of Editors - Animal Biodiversity and Conservation
Editorial Board - Freshwater Biology
Editorial Board - Ecology Freshwater Fish

Sculpture by Gary D. Grossman
https://www.facebook.com/pages/Gary-Grossmans-Sculpture-Portfolio/124819124227147?fref=ts

Hutson Gallery Provincetown, MA - www.hutsongallery.net/artists.html

My ukulele channel - www.youtube.com/user/garydg29

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------------------------------

Date:    Thu, 10 Jul 2014 10:36:08 -0600
From:    Benjamin MEUNIER <[log in to unmask]>
Subject: Re: neutrally buoyant organic particles

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Hi Gary,
we used polyamide particles from Dantec Dynamics (
http://www.dantecdynamics.com/seeding-materials) to measure fanning
currents by nest guarding male Round Goby. Not really "organic" but these
worked well for our application (see paper HERE
<http://lofe.dukejournals.org/content/3/198.full.pdf+html>). I think Dantec
also carries hollow glass seeding particles.
Dr Breithaupt at University of Hull in the UK may also have some good
advice for you. He has a lot of experience using Particle Image Velocimetry
in the field of aquatic biology.
Hope this help,

Ben Meunier, MSc
Fish Biologist
VAST Resource Solutions
Cranbrook, BC


On 10 July 2014 08:26, Gary Grossman <[log in to unmask]> wrote:

> ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
>            REPLIES WILL BE SENT TO THE FISH-SCI LIST
> <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><
>
> Greetings, I'm looking for advice on the use a small, organic neutrally
> buoyant organic particle that could be used to measure current velocity as
> it passes through the field of view of a video camera. I'm looking for
> sources and of course if you have had good or bad experiences with one or
> more product -- that information would be helpful too. cheers, g2
>
> --
> Gary D. Grossman, PhD
>
> Professor of Animal Ecology
> Warnell School of Forestry & Natural Resources
> University of Georgia
> Athens, GA, USA 30602
>
> Research & teaching web site - http://grossman.myweb.uga.edu/
> <http://www.arches.uga.edu/%7Egrossman>
>
> Board of Editors - Animal Biodiversity and Conservation
> Editorial Board - Freshwater Biology
> Editorial Board - Ecology Freshwater Fish
>
> Sculpture by Gary D. Grossman
>
> https://www.facebook.com/pages/Gary-Grossmans-Sculpture-Portfolio/124819124227147?fref=ts
>
> Hutson Gallery Provincetown, MA - www.hutsongallery.net/artists.html
>
> My ukulele channel - www.youtube.com/user/garydg29
>
> ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>  ><>
> For information, send INFO FISH-SCI to [log in to unmask]
>
>                    The FISH-SCI List Archive
>          http://segate.sunet.se/cgi-bin/wa?A0=FISH-SCI
>
>      To cancel your subscription, send a blank message to:
>            [log in to unmask]
> <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><  <><
>
>

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------------------------------

End of FISH-SCI Digest - 8 Jul 2014 to 10 Jul 2014 (#2014-87)
*************************************************************
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For information, send INFO FISH-SCI to [log in to unmask]

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