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SEAFWA 2018 has ended
The following schedule is from the 72nd Annual Conference of the Southeastern Association of Fish & Wildlife Agencies which was held October 21-24, 2018 in Mobile, Alabama. 
Tuesday, October 23 • 1:20pm - 1:40pm
SYMPOSIUM-05: Implications of Silver Carp Invasion on the Food Web of a Freshwater Mussel Biodiversity Hotspot

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AUTHORS: Mark W. Rogers, USGS Tennessee Cooperative Fishery Research Unit; Justin Murdock, Tennessee Technological University; Don Hubbs, Tennessee Wildlife Resources Agency

ABSTRACT: Planktivorous Silver Carp Hypophthalmichthys molitrix have potential to compete with native filter feeding aquatic fauna. Declines in Gizzard shad Dorosoma cepedianum and Paddlefish Polyodon spathula condition have been described in systems where Silver Carp have established populations. Recent invasions of Silver Carp into the Tennessee River system have created concerns regarding competition with native freshwater mussels and their host fish. We collected mussels, representative host fish for mussel glochidia, and Silver Carp from the Duck River, Tennessee, which is one of the most biodiverse mussel communities in the world. We used stable isotope samples to compare food web overlap of Silver Carp to evaluate how foraging by invasive Silver Carp could potentially disrupt energy flow across the complex life cycle of freshwater mussels. Identifying potential negative impacts of Silver Carp to freshwater mussels is critical to informing Asian carp control needs and conserving native aquatic fauna.

Tuesday October 23, 2018 1:20pm - 1:40pm
Grand Bay II

Attendees (5)