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Collecting benthic macroinvertebrates in Wrangell St. Elias National Park

By Alaska Science Center
Two scientists in a boat on lake. Sam collects benthic macroinvertebrates using an Eckman grab. Green hills in background.
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Detailed Description

Sam Graf (NPS – LACL) collects benthic macroinvertebrates using an Eckman grab in Wrangell St. Elias National Park as part of a study examining mercury in lake food webs.

Sources/Usage

Public Domain.

Photo taken by Ashley Stanek, U.S. Geological Survey