Chelle Lake trout collection
Detailed Description
A biologist samples lake trout (Salvelinus namaycush) tissues. This fish, captured in Chelle Lake within Wrangell-St. Elias National Park, is part of a study investigating the biomagnification of mercury through lake food webs. Mount Drum rises above the hills to the southeast.
Sources/Usage
Public Domain.
Photo taken by Sarah Laske, U.S. Geological Survey
Related
Tracing Mercury Through Lake Food Webs
Mercury concentrations in fish likely reflect different energy sources in lake food webs. Species, populations, or individuals may contain higher and variable concentrations of mercury, which may relate directly to prey mercury content, diets of fish, and fish foraging strategies.
Related
Tracing Mercury Through Lake Food Webs
Mercury concentrations in fish likely reflect different energy sources in lake food webs. Species, populations, or individuals may contain higher and variable concentrations of mercury, which may relate directly to prey mercury content, diets of fish, and fish foraging strategies.