There are actually 2 types of Brown Trout.
They were brought over by German and Scottish settlers
in large wooden barrels. The 2 trout had distinguishable
differences when first brought over.
The Loch Leven Scottish brown was different than the
German brown. Loch Leven browns were differently
marked. LL Browns had no red spots.
Scottish heritage.
The 2 breeds of browns have intermingled through the years
and it is hard to tell a species from the other.
German Brown lines.
The best way to tell if they are German or Scottish is if they
are wearing Leder Hosen or a Kilt.