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Summary

Description
English: Salmon nitrogen cycling in a hypothetical stream system
Date
Source https://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.abstractDetail/abstract/9070/report/2009
Author US Environmental Protection Agency

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Public domain
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This image (or other media) is a work of an Environmental Protection Agency employee, taken or made as part of that person's official duties. As works of the U.S. federal government, all EPA images are in the public domain.
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22 December 2011

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current07:33, 22 December 2011Thumbnail for version as of 07:33, 22 December 2011624 × 441 (35 KB)Epipelagic

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source: https://en.wikipedia.org/wiki/File:Salmon_nitrogen_cycling_in_a_stream.gif