The last of the season's lunker hatchery trout have been planted by the Oregon Department of Fish and Wildlife.

Brood trout are large rainbow trout, weighing several pounds each, used in the production of state hatchery fish for stocking in lakes, ponds and reservoirs. Brood trout, however, lose some of their reproductive potential as they age and are stocked in selected waters after their breeding cycles.

The week's regular winter stocking went to Junction City Pond and Walter Wirth Lake and Walling Pond in Salem. Both pan-sized trout and larger fish were stocked in those waters.

Department officials said no more brood trout will be released this winter, but regular stocking will continue through the spring months.