Typified by the fact that the brown trout is largely freshwater fish, while the sea trout shows anadromous reproduction, migration into the oceans for a large part of his life and return to freshwater only to spawn. Also there able to live in small ponds but there needs must be satisfied.
I'm lost too...
Brown trout can be landlocked or anadromous. For those not knowing what anadromous means, basically it is a species who generally spends most of its adult life at sea and only enters frestwater, generally rivers to spawn. There are instances of brown trout that are land locked and those that go out to the ocean and come back to their natal rivers to spawn. These trout are often called "sea run" trout or "coasters".
What this has to do with the original post I am not sure?
