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Trask Watershed Study Amphibian Survival and Movement Data, 2008-2015

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-11-16T00:00:00Z
This data set contains mark-recapture information for individuals of Dicamptodon tenebrosus and Ascaphus truei marked for individual recognition. Amphibians represented in this data set were captured in 14 first-order perennial and seasonally intermittent streams in the East Fork of the South Fork of the Trask River in the northern Oregon Coast Range. Individuals are larval and mature aquatic Dicamptodon tenebrosus and larval Ascaphus truei. Of the Ascaphus truei larvae only individuals thought to be in their first summer when first captured are included (these are individuals whose knees had yet to emerge from under the anal flap or fold).

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