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Project Number : 2.5.9

Project Number : 2.5.9. Project Title: Evaluate Physical Methods to Disrupt Asian Carp Spawning Behavior and Decrease Egg Viability. Reuben Goforth (PI ) & Sam Nutile (GRA) Department of Forestry & Natural Resources Purdue University. Introduction and Objectives.

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Project Number : 2.5.9

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  1. Project Number : 2.5.9 Project Title: Evaluate Physical Methods to Disrupt Asian Carp Spawning Behavior and Decrease Egg Viability Reuben Goforth (PI) & Sam Nutile (GRA) Department of Forestry & Natural Resources Purdue University

  2. Introduction and Objectives • >180 aquatic invasive sp. (AIS) introduced to Great Lakes; additional introductions likely • Available AIS control tools limited; chemical agents non-selective • Physical factors (e.g., electricity, sonication, aeration) may disrupt embryo development & may enhance susceptibility to chemical agents • Critical stages for physical disruption need to be determined • We will construct a test system to determine whether Asian carp eggs/embryos are susceptible to physical disruption

  3. Current Knowledge • Electrical fields have been shown to disrupt development of native fish sp. • Bioengineering industry uses electricity to create temporary pores in cell membranes • Exposure system being developed to expose Asian carp eggs & embryos at various developmental stages to varying electrical fields

  4. Current Knowledge (continued) • Multiple sp. being cultured to test exposure system prior to expected availability of Hypophthalmichyssp. eggs in late spring 2011 • Daniorerio • Pimephalespromelas • Carassiusauratus • Rhinichthysobtusus

  5. Future Plans • Construct additional exposure systems (Apr-11) • Conduct electrical field experiments on Asian carp sp. & concurrently spawning native species (e.g., Moxostomasp., Scaphirhynchusplatorynchus, Cycleptuselongatus) using calibrated exposure systems (May-Jul 11) • Conduct multiple control factor trials (e.g., electricity X low dose rotenone; May-Aug 11) • Assess potential for in situ application of physical disruption & combined exposure

  6. Technological or Other Hurdles • Minor equipment/exposure system setbacks; nearly rectified at this stage • Ready availability of carp eggs for exposure trials when needed!!! • Need for “mobile exposure unit” to facilitate availability of carp eggs for experimental trials???

  7. Data Gaps • Incomplete knowledge of in situ effectiveness • Incomplete knowledge of the most effective locations for in situ implementation • Incomplete knowledge of the full range of potential ecosystem impacts of in situ applications • ?????

  8. Other AC Work in Goforth Lab • Movements of AC in Wabash River, IN • Reuben Goforth (PI) and Alison Coulter (GRA) • Tag 100 AC using Vemco V16-4L acoustic tags • Monitor movements over ≈350 river miles • Evaluate where spawning taking place in Wabash • Collaboration with Dr. Andrea Liceaga (Dept of Food Science, Purdue University)

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