Project Information

Title: Temporal Stability of Fatty Acids used to Discriminate Pacific Herring in Alaska 050769

Project Year and Number: 2005: 050769

Other Fiscal Years and Numbers for this Project: 2007: 070769

Principal Investigator (PI): Ted Otis (Alaska Department of Fish & Game)

Managing Agency: ADFG

Assisting Personnel: Ron Heintz

Research Location: Gulf of Alaska and Bering Sea

Restoration Category: Research

Injured Resources Addressed: Commercial Fishing, Pacific Herring, Subsistence

Abstract: This project follows up on a promising pilot study that demonstrated the ability to discriminate Alaska herring stocks at relatively fine spatial scales (> 100 km) based on the fatty acid composition of their heart tissue. The investigators propose to assess the temporal stability and biological variability of stock discrimination criteria derived from fatty acid analysis of herring cardiac tissues. Samples will be collected during the spring and fall/winter of 2005 and 2006 from putative herring stocks from Sitka, PWS, Kamishak, Kodiak, Dutch Harbor, Togiak, and Kuskokwim Bay. Results should allow managers to better define ecologically significant stock boundaries, which would likely affect how commercially exploited herring populations are assessed and managed. Results will be published in a peer-reviewed report and may lead to revision of fishery management plans for affected areas. Keywords: Pacific herring, stock identification, fatty acid analysis, Gulf of Alaska


Proposal: View (1,382 KB)

Reports:
Annual Report FY05: View (26 KB)
Annual Report FY06: View (36 KB)
Final Report: See Project 070769

Publications from this Project: None Available