Proposed  Fishery Research Sonar Installation Environmental Assessment Available for Review

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Date: April 7, 2011
Contact: Allison Banks, Public Information Officer, 907-697-2230

The NPS has been studying coho and sockeye salmon in the Bartlett River for several years to determine the feasibility of different salmon escapement estimation methods. Turbid water conditions make fish counts and identification very difficult. Because the number of sockeye and coho salmon spawning each year within this river system is not well known, this information would provide a baseline against which future changes in fish abundance can be compared and overharvest avoided.

An Environmental Assessment identifying and analyzing the potential effects of the DIDSON sonar installation and as well as other alternatives is now available for public review and comment.

All NPS planning projects are now posted on the NPS Planning, Environment, and Public Comment (PEPC) website at the following link:

To read the EA and submit comments, scroll down to the project titled "Bartlett River Salmon Escapement Monitoring" and click the link. Comments may also be mailed or faxed to Allison Banks, Environmental Protection Specialist at the address given above, or emailed to All comments must be postmarked no later than May  6, 2011.

Last updated: April 14, 2015

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Glacier Bay National Park & Preserve
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