Title: PWS Herring Program - Herring Condition Monitoring
Project Year and Number: 2014: 14120111-L
Other Fiscal Years and Numbers for this Project: None
Principal Investigator (PI): Scott Pegau
Assisting Personnel: Ron Heintz
Injured Resources Addressed: Not Specified
Abstract: Outlined here is a single herring monitoring project that is a part of an integrative program that will enhance the current herring monitoring efforts and examine aspects of particular life stages to allow better modeling of Prince William Sound herring populations. The long-term goal of the program is to improve predictive models of herring stocks through observations and research.
This project will be furthering the development of a herring overwintering mortality model that began with an ongoing monitoring project that began in 2007 and incorporates results from Prince William Sound herring research dating as far back as the 1990’s. The model runs by applying herring condition observations made before and after winter. Accordingly, herring are sampled in November and the following March. Present sampling will end in March 2012. Proposed sampling will commence in November 2012 and end in March 2016. A future project is expected to continue the time series beginning in November 2016. The purpose of the time series is to relate overwinter mortality to herring recruitment.
This project will be furthering the development of a herring overwintering mortality model with additional data types as well energy levels per se. The goal is use physiological indicators to realistically modify the daily energy loss rate in the overwintering model. The results of model improvement will be tested using the March data model validation approach begun during the project that began in 2007.
Additionally, we will be assessing effects of competition of other juvenile fishes on condition of age-0 herring using stable isotope analysis on an opportunistic basis.
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Proposal: View PDF (222 KB)
Funding Recommendations: View
Funding Detail For: 2014
Quarterly Project Tasks For: 2014
Annual Report: 2014: View (719 KB)
Final Report: Final Report Not Available - For Current Status Please Contact Us
Publications from this Project: None Available