Dolly Varden generally mature after five years. References Craig P. 1984. Craig, P. 1989. An introduction to anadromous fish in the Alaskan Arctic. In D.W. Norton, editor.
Research advances on anadromous fish in arctic Alaska and Canada.
McCart, P. 1980. A review of the systematics and ecology of Arctic char, Salvelinus alpinus, in the western Arctic. Canadian Technical Report of Fisheries and Aquatic Science Number 935. Underwood, T.J., J.A. Gordon, M.J. Millard, L.A. Thorpe, and B.M. Osborne. Characteristics of selected fish populations of Arctic National Wildlife Refuge coastal waters, final report, 1988-1991.