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Project Information

Title: Marine-Terrestrial Linkages in Northern GOA Watersheds: Towards Monitoring the Effects of Anadromous Marine-Derived Nutrients on Biological Production 040703

Project Year and Number: 2004: 040703

Other Fiscal Years and Numbers for this Project: 2004: 040703-A

Principal Investigator (PI): Bruce Finney (University of Alaska Fairbanks)

Managing Agency: ADFG

Assisting Personnel: None

Research Location: Karluk Lake, Spiridon Lake, Kodiak, Alaska

Restoration Category: Monitoring

Injured Resources Addressed: Sockeye Salmon

Abstract: The proposed project is a comprehensive study examining the role of marine-derived nutrients (MDNs) in the productivity of a sockeye nursery lake ecosystem. The research plan integrates studies of nutrient cycling, primary productivity, zooplankton dynamics, and juvenile sockeye abundance and growth, within a framework of stable isotope natural abundance. The study sites are an ideal pair, very similar in characteristics except for access by spawning salmon (anadromous Karluk Lake and control Spiridon Lake). The project will take advantage of the wealth of previous research including relatively long-term limnological data for both sites. Based on previous work, signals from MDNs are anticipated to be relatively strong, which will help elucidate nutrient pathways. The research design is the first to utilize detailed vertical and temporal sampling of the water column, coupled with measurements of rates of primary productivity, and fully integrated stable isotope analyses, with contemporaneous sampling in a well-matched pair of salmon and control lakes. The overall goal of this project is to provide the framework for designing monitoring projects to detect changes in marine terrestrial linkages in Gulf of Alaska sockeye.


Proposal: View (102 KB)

Reports:
Annual Report FY04: View (181 KB)
Annual Report FY05: View (1,142 KB)
Annual Report FY06: View (134 KB)
Final Report: See Project 040703-A

Publications from this Project: None Available