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Subject: Newcrs: How to record video footage of fish tagged with VIE tags using cameras IP 540P, Compro Technology, USA
From: Dinh Pham <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Fri, 4 Jul 2014 07:09:09 +0200
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Hello everyone,

I am a Master student of the University of Tasmania, Australia. I am doing a 
project of observations of social interactions of juvenile barramundi (4-5 cm). I 
tagged the fish individually using VIE tags and tried to record video footage 
using 
video cameras (IP 540P, Compro Technology, USA) but I failed as the cameras 
can not see the colour of VIE tags under fluorescent lights. If these lights are 
turned off and only UV light is used then the colour of VIE tags are highly 
visible, 
but the background of the footage is grey and the VIE tags are seen as white 
strips (please see the attached file for detail).

I have thought of some other methods using acrylic paint and surgical threads 
with coloured beads. However, the former is thought to be toxic to the fish, 
and 
the latter causes mortality.

I am not a savvy camera user, so if you have any ideas about whether the 
cameras I am using are able to see the VIE tags or about other tagging 
methods 
for such small fish, please share them with me.

Thank you, and I am looking forward to hearing you soon.

Best regards,
Dinh

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