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Lake Erie Fisheries eDNA , Ballville Dam, Population Updates

Lake Erie Fisheries eDNA , Ballville Dam, Population Updates. Jeff Tyson Lake Erie Program Administrator ODNR, Division of Wildlife. Asian Carp Strategies. Asian Carp Strategies – Asian Carp Tactical Plan Bighead/Silver carp Grass carp Ballville Dam Population/Fisheries.

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Lake Erie Fisheries eDNA , Ballville Dam, Population Updates

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  1. Lake Erie FisherieseDNA, Ballville Dam, Population Updates Jeff Tyson Lake Erie Program Administrator ODNR, Division of Wildlife

  2. Asian Carp Strategies • Asian Carp Strategies – Asian Carp Tactical Plan • Bighead/Silver carp • Grass carp • Ballville Dam • Population/Fisheries

  3. Bighead/Silver Carp • Prevention of introduction • Four connections in Ohio • Present in Ohio River • Muskingum River • Movement through bait/ other transport • Surveillance • Existing assessments (DOW) • eDNA (USFWS/DOW) • Detection action • Response exercise • When/where/how

  4. Detection Action

  5. Grass Carp • Different risks than Bighead/ Silver carp • Impact habitat structure/vegetation • Certified triploids allowed • Present in the system since 1980s (infrequent) • Assumed triploid • Began testing in 2012 • Some diploids • Some evidence of natural reproduction • Testing of sources (shipments) • Response exercise – to get further demographics/movement

  6. Ballville Dam • Asian Carp Strategies – Asian Carp Tactical Plan • Bighead/Silver carp • Grass carp • Ballville Dam • Population/Fisheries

  7. Ballville Dam • Large dam on Sandusky River • Outlived useful life • Owned by City of Fremont • Ecological restoration potential • Process/timeline

  8. Ballville Dam • Significant ecological impacts • Funding • Removal (OEPA/ODW) • Cost - $6.3 million • Available - $7.8 million • Rehabilitation • Cost - >$10 million • Available - ??? • Plan – Environmental Impact Statement

  9. Ballville DamPlan • Staged removal • Minimize impacts downstream • Re-establish vegetation upstream • Minimize flooding impacts • More research • Timeline

  10. Population Status • Asian Carp Strategies – Asian Carp Tactical Plan • Bighead/Silver carp • Grass carp • Ballville Dam • Population/Fisheries

  11. Population StatusWalleye • Walleye stocks • 2003 year-class • Moderate hatches (‘07, ‘10, ‘13) • Age-2+ - similar to 2013 • Walleye fishery • Good performance • Likely ~ 1 million harvest

  12. Population StatusYellow Perch • Yellow Perch stocks • West stocks down • Central stocks robust • Age-3+ - down, but moderate to good recruits in all basins coming in • Yellow Perch fishery • Sport - good performance, particularly east • Commercial – allocation nearly harvested

  13. Questions? • Ohio Division of Wildlife • 1-800-Wildlife • Lake Erie Fisheries – 419-625-8062 • Jeff Tyson – jeff.tyson@dnr.state.oh.us

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