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The AKSSF program has funded around 1,000 projects since its inception in 2000. Use a key word search to find the projects that interest you, click on a marker in the map to learn more, or explore the filters to refine your search by region, year, objective, etc. (Please note that many of the projects funded prior to 2014 are no longer eligible for AKSSF funding.)
Explore AKSSF’s current set of objectives

Headwater Stream Rearing Habitat – Phase 2

Synopsis:This project will create a spatially explicit predictive model for identifying areas of significant influence to juvenile salmon in headwater streams, specifically in the Kenai Lowlands region of Alaska. This new tool will build on recently developed models and understanding by incorporating several new sources of information including: (1) the combined role of wetlands and alder in driving headwater stream productivity; (2) the effects of headwater stream productivity on juvenile salmonid growth and survival; and (3) preliminary investigations of juvenile fish movement in headwater stream systems. This information will be presented in a GIS format that identifies basic landscape features that drive stream productivity and the effects on juvenile salmonids. Understanding how surrounding landscapes are integrated into nutrient and hydrologic loads to streams and how these basic inputs affect fish productivity will provide a framework for conserving important headwater stream rearing habitat for juvenile salmonids. This project continues work begun in AKSSF project 44507.
Project #:44709
Project Period:4/1/2012 - 6/30/2015
Cost:$539,419
Match:$190,880
Region:Central, Cook Inlet
Federal Fiscal Year:2011
Investigator(s)
NameRoleOrganization
Coowe Walker Principal Investigator ADF&G, Division of Sport Fish
Dennis Wigham Co-Principal Investigator Smithsonian Institution
Ryan King Co-Principal Investigator Baylor University
Christy Tyler Co-Principal Investigator Rochester Institute of Technology
Statement of Work AKSSF Reports
Semiannual Report 11/1/2011 - 4/30/2012 PDF
Semiannual Report 5/1/2012 - 10/31/2012 PDF
Semiannual Report 11/1/2012 - 4/30/2013 PDF
Semiannual Report 5/1/2013 - 10/31/2013 PDF
Semiannual Report 11/1/2013 - 4/30/2014 PDF
Semiannual Report 5/1/2014 - 10/31/2014 PDF
Semiannual Report 11/1/2014 - 4/30/2015 PDF
Completion ReportPDF
Optional Reports
TitleDescription
Catchment-scale alder cover controls nitrogen fixation in boreal headwater streams Peer reviewed journal article in Freshwater Science
From microbes to salmonids: Dramatic ecosystem response to low-level dissolved organic carbon additions in an Alaskan headwater stream Poster presentation at the Conference on Biological Stoichiometry, held in Ontario, Canada 2015
KBRR Quarterly Report June 2014
Low-level addition of dissolved organic carbon increases basal ecosystem function in a boreal headwater stream A paper investigating how peatlands and alders affect headwater stream functions
Low-level additions of dissolved organic carbon increases nitrogen uptake and bacterial biomass production in an Alaskan headwater stream This poster presentation on response of stream algae to dosing experiment was prepared and presented by graduate student Caleb Robbins at the Joint Aquatic Sciences Meeting held in Portland, Oregon, May 2014.
Macroinvertebrate abundance dramatically increases in response to low-level dissolved organic carbon additions in an Alaskan headwater stream This poster was presented at the 2014 Joint Aquatic Sciences Meeting held in Portland, Oregon. It highlights the importance of carbon inputs from wetlands into streams.
Nitrogen subsidies from hillslope alder stands to streamside wetlands and headwater streams, Kenai Peninsula, Alaska peer reviewed journal article in Journal of the American Water Resources Association
Productivity Dosing Station Set-up This image shows the design for the experimental nitrogen dosing station at one of the two streams where project field work will take place during summer 2013.
Salmon in the Hills: Habitat-based models of juvenile salmonids in headwater streams of south-central Alaska PowerPoint presentation used to communicate project results and potential uses
Watershed Influences on the structure and function of riparian wetlands associated with headwater streams - Kenai Peninsula, Alaska Peer reviewed journal article in Science of the Total Environment (public access)

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For technical support, questions, or comments, please contact Debbie Maas at debbie.maas@alaska.gov.