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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
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

slide2

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
slide3

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
slide4

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
slide5

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
slide6

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???
slide7

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
  • ?????
slide8

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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