INTEGRATED MANAGEMENT OF SEA LAMPREYS IN THE GREAT LAKES 2006 ANNUAL REPORT TO THE GREAT LAKES FISHERY COMMISSION by Robert A. Adair United States Fish and Wildlife Service Marquette, Michigan 49855 Robert J. Young Department of Fisheries and Oceans Sault Ste. Marie, Ontario P6A 6W4 Table of Contents Executive Summary.......................................................................................................................................................... 1 Introduction ...................................................................................................................................................................... 2 Commission Vision .......................................................................................................................................................... 2 Fish Community Objectives ............................................................................................................................................. 3 Lake Superior ............................................................................................................................................................ 3 Lake Michigan........................................................................................................................................................... 4 Lake Huron................................................................................................................................................................ 5 Lake Erie ................................................................................................................................................................... 6 Lake Ontario.............................................................................................................................................................. 7 Lampricide Control........................................................................................................................................................... 9 Lake Superior .......................................................................................................................................................... 10 Lake Michigan......................................................................................................................................................... 14 Lake Huron.............................................................................................................................................................. 15 Lake Erie ................................................................................................................................................................. 18 Lake Ontario............................................................................................................................................................ 19 Alternative Control......................................................................................................................................................... 21 Sterile Male Release Technique .............................................................................................................................. 21 Barriers.................................................................................................................................................................... 23 Lake Superior ................................................................................................................................................... 23 Lake Michigan.................................................................................................................................................. 24 Lake Huron....................................................................................................................................................... 25 Lake Erie .......................................................................................................................................................... 26 Lake Ontario..................................................................................................................................................... 27 Assessment ..................................................................................................................................................................... 29 Larval ...................................................................................................................................................................... 29 Lake Superior ................................................................................................................................................... 29 Lake Michigan.................................................................................................................................................. 36 Lake Huron....................................................................................................................................................... 42 Lake Erie .......................................................................................................................................................... 48 Lake Ontario..................................................................................................................................................... 50 Spawning-Phase ...................................................................................................................................................... 53 Lake Superior ................................................................................................................................................... 53 Lake Michigan.................................................................................................................................................. 57 Lake Huron....................................................................................................................................................... 59 Lake Erie .......................................................................................................................................................... 61 Lake Ontario..................................................................................................................................................... 62 Parasitic-Phase......................................................................................................................................................... 64 Lake Superior ................................................................................................................................................... 64 Lake Michigan.................................................................................................................................................. 64 Lake Huron....................................................................................................................................................... 65 Lake Erie .......................................................................................................................................................... 66 Lake Ontario..................................................................................................................................................... 66 Risk Assessment............................................................................................................................................................. 67 Task Force Reports......................................................................................................................................................... 70 Lampricide Control Task Force............................................................................................................................... 70 Control Ranking and Evaluation Task Force........................................................................................................... 72 Connecting Channel and Lentic Area Task Force................................................................................................... 74 Sea Lamprey Barrier Task Force............................................................................................................................. 76 Reproduction Reduction Task Force ....................................................................................................................... 80 Outreach ......................................................................................................................................................................... 84 Permanent Employees of the Sea Lamprey Management Program................................................................................ 85 INTEGRATED MANAGEMENT OF SEA LAMPREYS IN THE GREAT LAKES 2006 Robert A. Adair United States Fish and Wildlife Service Marquette, Michigan 49855 Robert J. Young Department of Fisheries and Oceans Sault Ste. Marie, Ontario P6A 6W4 EXECUTIVE SUMMARY This report summarizes activities in the integrated management of sea lampreys conducted by the United States Fish and Wildlife Service and Department of Fisheries and Oceans Canada in the Great Lakes during 2006. Lampricide treatments were conducted on 70 tributaries. Larval assessment crews conducted surveys in 311 tributaries and 45 lentic areas to assess control effectiveness, plan future TFM treatments, and establish production capacity of streams. Assessment traps were operated