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Hello everybody,

I aim to study night activity of atlantic salmon fry in a field experiment.
Because I want to measure activity at the individual level, every fish used
in the experiment will be individually tagged using VIE tags (Visible
Implant Elastomer, http://www.nmt.us/products/vie/vie.htm). Such tags are
highly visible under low luminosity conditions when fluoresced with blue
light and amber filters.
However, in a laboratory experiment I found that atlantic salmon fry were
highly disturbed when illuminated with such light. I contacted the
fabriquant and they said to me that this problem can be resolved using UV
lamps.

I've got two questions:
         -Has someone ever used such kind of UV lamps? Is it really
possible to fluoresce VIE tags with UV lamps?
         -Where can I find waterproof UV lamps?

Moreover, if someone used to do underwater observation by night, I would be
greatful for any advice!

I look foward to hearing from you

Simon Blanchet


BLANCHET Simon
PhD student
Université Laval - Québec-Océan / CIRSA
Pavillon Alexandre-Vachon
Local 8022
Québec (Québec), Canada G1K 7P4
Téléphone : (418) 656-2131 poste 8022
courriel : [log in to unmask]

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