G-man -
Our "Dollies" do go to the salt. In the North Puget Sound rivers we find 4 general life histories in the native char. 1) A resident form that spend all of their lifes in the headwater streams and never getting larger than 12 inches or so. 2) A fluvial or river form that drops downstream into the larger rivers to rear in the large pools. 3) Adfluvail or lake form that drops downstream into lakes (such as Baker) to rear.
and 4) Anadromous or sea-going form.

The anadromous form behaves more like sea-run cutthroat than steelhead. That is they drop into Puget Sound feeding along the shorelines in shallow water. They seem to stay relatively close to their home stream, it would be unusually for them to migrate more than 50 miles from their home stream. They spend the spring, summer and early fall in the marine waters and return to freshwater to overwinter.

For what it is worth the information that currently available indicates that all of our anadromous "Dollies" are in fact bull trout. So far here in Western Washington Dolly Varden have only been found in the headwater "resident forms".

Tight lines
Smalma