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Project Information

Title: Long-term Monitoring of Oceanographic Conditions in Cook Inlet/Kachemak Bay, Alaska

Project Year and Number: 2018: 18120114-J

Other Fiscal Years and Numbers for this Project: 2017: 17120114-J, 2016: 12120114-G, 2015: 12120114-G, 2014: 12120114-G, 2013: 13120114-G, 2013: 12120114-G, 2012: 12120114-G

Principal Investigator (PI): Kris Holderied, NOAA

Assisting Personnel: Jessica Shepherd

Research Location:

Restoration Category:

Injured Resources Addressed: Clams , Common Murres , Cormorants , Harbor Seals , Intertidal Organisms , Killer Whales , Kittlitz's Murrelets , Marbled Murrelets , Mussels , Pacific Herring , Passive Use , Pigeon Guillemot , Sea Otters , Subsistence , Subtidal Organisms

Abstract: The Cook Inlet/Kachemak Bay monitoring project provides year-round, high temporal resolution oceanographic and plankton data to assess the effects of seasonal and inter-annual oceanographic variability on nearshore and pelagic species injured by the Exxon Valdez Oil Spill. We continue a 6-year time-series of shipboard oceanography surveys along the estuarine gradient from Kachemak Bay into southeast Cook Inlet, as well as a 16-year time series of continuous nearshore water quality station observations in Kachemak Bay. Shipboard surveys are conducted on repeated transects monthly in Kachemak Bay, seasonally in southeast Cook Inlet and annually across the Cook Inlet entrance. Shipboard sampling includes conductivity-temperature-depth casts (including fluorescence, turbidity, and dissolved oxygen), phytoplankton, and zooplankton. The project provides oceanographic data to support Gulf Watch Alaska (GWA) nearshore component monitoring in Kachemak Bay and important environmental driver information downstream of other GWA components. By sampling across Prince William Sound, Cook Inlet and the northern Gulf of Alaska shelf, in connection with other GWA Environmental Drivers component projects, we strengthen the ability of the GWA program to evaluate local (within estuary) and remote (shelf, North Pacific) climate forcing effects on nearshore ecosystems. Recent results show that during 2014-2016: 1) water temperatures were warmer than average throughout the water column and fresher below the pycnocline - consistent with the upper 100m of the water column at GAK1, but different from the lower water column, with warm water possibly contributing to sea star declines observed by the nearshore sampling team; 2) increased blooms of Alexandrium phytoplankton species caused paralytic shellfish poisoning events in Kachemak Bay which may have contributed to marine mammal and seabird mortalities; and 3) abundances of warm water zooplankton species increased relative to 2012-2013. We are not proposing any major changes to this project in FY18.


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Proposal: View PDF (1,637 KB)

Funding Recommendations: View

Funding Detail For: 2018

Quarterly Project Tasks For: 2018

Annual Report: 2018: View (5,638 KB)

Final Report: Final Report Not Available - For Current Status Please Contact Us

Publications from this Project: None Available

More information may be available for this project under other years:

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Project Number Proposal Annual Reports Final Report Data
2017: 17120114-J View (PDF) 2017: View (PDF)
Final Report Not Available - For Current Status Please Contact Us No datasets
2016: 12120114-G View (PDF) 2016: Due 09/01/2016
2015: View (PDF)
2014: View (PDF)
Final Report Not Available - For Current Status Please Contact Us No datasets
2013: 13120114-G Not Available 2013: Due 09/01/2013
Final Report Not Available - For Current Status Please Contact Us No datasets
2013: 12120114-G View (PDF) 2013: View (PDF)
2012: View (PDF)
Final Report Not Available - For Current Status Please Contact Us No datasets