Outdoors
OUTDOORS UAF Geophysical Institute EAST FORK OF THE GULKANA RIVER - In early August, a few months before this mossy valley will feel the sting of 40-below air, bright red salmon dart through a crystal clear pool amid fragrant green vegetation. The Gulkana Hatchery has a Garden-of-Eden feel, which is fitting since millions of sockeye salmon begin life here each year.

Alaska science forum: A high-country Eden for sockeye salmon, 260 miles from the ocean

A red salmon's otolith bone, which biologists can use to determine whether a fish was born at the Gulkana Hatchery.
Photos By Ned Rozell
A red salmon's otolith bone, which biologists can use to determine whether a fish was born at the Gulkana Hatchery.
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