title: Acoustic telemetry reveals large-scale migration patterns of walleye in Lake Huron.
abstract: Fish migration in large freshwater lacustrine systems such as the Laurentian Great Lakes is not well understood. The walleye (Sander vitreus) is an economically and ecologically important native fish species throughout the Great Lakes. In Lake Huron walleye has recently undergone a population expansion as a result of recovery of the primary stock, stemming from changing food web dynamics. During 2011 and 2012, we used acoustic telemetry to document the timing and spatial scale of walleye migration in Lake Huron and Saginaw Bay. Spawning walleye (n = 199) collected from a tributary of Saginaw Bay were implanted with acoustic tags and their migrations were documented using acoustic receivers (n = 140) deployed throughout U.S. nearshore waters of Lake Huron. Three migration pathways were described using multistate mark-recapture models. Models were evaluated using the Akaike Information Criterion. Fish sex did not influence migratory behavior but did affect migration rate and walleye were detected on all acoustic receiver lines. Most (95%) tagged fish migrated downstream from the riverine tagging and release location to Saginaw Bay, and 37% of these fish emigrated from Saginaw Bay into Lake Huron. Remarkably, 8% of walleye that emigrated from Saginaw Bay were detected at the acoustic receiver line located farthest from the release location more than 350 km away. Most (64%) walleye returned to the Saginaw River in 2012, presumably for spawning. Our findings reveal that fish from this stock use virtually the entirety of U.S. nearshore waters of Lake Huron.
authors.affiliation: Great Lakes Fishery Commission, 2100 Commonwealth Blvd. Ste. 100, Ann Arbor, Michigan, United States of America; Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada.
authors.forename: Todd A
authors.initials: TA
authors.lastname: Hayden
authors.affiliation: U.S. Geological Survey, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, Michigan 49759, United States of America.
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Holbrook
authors.affiliation: Michigan Department of Natural Resources, 160 East Fletcher St., Alpena, Michigan 49707, United States of America.
authors.forename: David G
authors.initials: DG
authors.lastname: Fielder
authors.affiliation: Ohio Department of Natural Resources, Sandusky Fish Research Unit, 305 E. Shoreline Drive, Sandusky, Ohio 44870, United States of America.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Vandergoot
authors.affiliation: U.S. Geological Survey, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, Michigan 49759, United States of America.
authors.forename: Roger A
authors.initials: RA
authors.lastname: Bergstedt
authors.affiliation: Great Lakes Fishery Commission, 2100 Commonwealth Blvd. Ste. 100, Ann Arbor, Michigan, United States of America.
authors.forename: John M
authors.initials: JM
authors.lastname: Dettmers
authors.affiliation: Michigan State University, Center for Systems Integration and Sustainability, 1405 South Harrison Road, 115 Manly Miles Building, East Lansing, Michigan 48823-5243, United States of America.
authors.forename: Charles C
authors.initials: CC
authors.lastname: Krueger
authors.affiliation: Fish Ecology and Conservation Physiology Laboratory, Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada.
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Cooke
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D025041:Animal Migration; D000818:Animals; D005260:Female; D006114:Great Lakes Region; D008297:Male; D010471:Perches / Q000502:physiology; D013686:Telemetry / Q000295:instrumentation*