lake erie fisheries edna , ballville dam, population updates
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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LAKE ERIE FISHERIESeDNA, BALLVILLE DAM, POPULATION UPDATES
Jeff TysonLake Erie Program Administrator
ODNR, Division of Wildlife
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Asian Carp Strategies
Asian Carp Strategies – Asian Carp Tactical Plan Bighead/Silver carp Grass carp
Ballville Dam
Population/Fisheries
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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
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Detection Action
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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
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Ballville Dam
Asian Carp Strategies – Asian Carp Tactical Plan Bighead/Silver carp Grass carp
Ballville Dam
Population/Fisheries
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Ballville Dam
Large dam on Sandusky River Outlived useful life Owned by City of
Fremont
Ecological restoration potential
Process/timeline
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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
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Ballville DamPlan
Staged removal
Minimize impacts downstream
Re-establish vegetation upstream
Minimize flooding impacts
More research
Timeline
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Population Status
Asian Carp Strategies – Asian Carp Tactical Plan Bighead/Silver carp Grass carp
Ballville Dam
Population/Fisheries
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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
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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
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Questions?
Ohio Division of Wildlife 1-800-Wildlife Lake Erie Fisheries – 419-625-8062 Jeff Tyson – [email protected]