(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 1. Premigratory gill Na+/K+-ATPase activity and future
migratory behaviour in wild brown trout from the two tributaries (River
Granslev Aa and Haldum Brook) in (A) late Februaryearly March (163
future migrants and 25 future residents) and (B) mid-April (60 future migrants
and 15 future residents). The solid line in B indicates the probability of
future migration as a function of premigratory gill
Na+/K+-ATPase activity, as determined by logistic
regression analysis.