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Biometric data of non-target species in the Andreafsky River at Yukon Delta National Wildlife Refuge, Alaska

Published by U.S. Fish and Wildlife Service | Department of the Interior | Metadata Last Checked: January 25, 2026 | Last Modified: 2025-04-03T00:00:00Z
Tabular dataset containing age, sex, and length biometric data for all whitefish species detected and recorded at the Andreafsky weir for 2010-2013 and 2015. Data was compiled from in-season data sheets. Sex was identified visually and length was measured using a measuring board to the nearest 1/2 mm. Total weight in grams was taken for every sampled individual. if the specimen was identified as a female, egg weight in grams was recorded and relative egg weight as a percentage was calculated. NA refers to missing data.

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