Hello everybody,

Maybe someone has gained some experience in this and can help me out:

How can I mark tiny salmon fry (around 30-40 mm long or even smaller)
for a flume experiment?

I observe a small number (1-6) of these small fish by eye from the side
at ranges up to 1 metre and sometimes reduced visibility by water
coloration. Experiments last around a week and the fish are wild caught.

The marking should permit me to identify the individual during my
observations. (and ideally there are no side-effects for the health and
behaviour of the fish...)



excuse cross-posting

and thanks a lot in advance for all suggestions, hints and links!


please reply directly to me:


*       Christian Holm
*
*       Dept. of Environmental Science
*       Stirling University
*       Stirling
*       FK9 4 LA
*       Scotland
*       Tel: 44/1786-46 6544
*       Fax:""""""""""""" 7843
*       e-mail: [log in to unmask]

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