Managing aquatic invasions optimal locations and operating times for watercraft inspection stations.pdf
Supplementary Appendices for “Managing Aquatic Invasions Optimal Locations and Operating Times for Watercraft Inspection Stations” .pdf

Managing aquatic invasions optimal locations and operating times for watercraft inspection stations

  • Author(s) / Creator(s)
  • Aquatic invasive species (AIS) cause signi cant ecological and economic damages around the
    world. A major spread mechanism for AIS is trac of boaters transporting their watercraft from
    invaded to uninvaded waterbodies. To inhibit the spread of AIS, Canadian provinces and American
    states often set up watercraft inspection stations at roadsides, where potentially infested boats are
    screened for AIS and, if necessary, decontaminated. However, since budgets for AIS control are
    limited, watercraft inspection stations can only be operated at speci c locations and daytimes.
    Though theoretical studies provide managers with general guidelines for AIS management, more
    speci c results are needed to determine when and where watercraft inspections would be most
    e ective. This is the subject of this paper. We show how linear integer programming techniques
    can be used to optimize watercraft inspection policies under budget constraints. We introduce our
    approach as a general framework and apply it to the prevention of the spread of zebra and quagga
    mussels (Dreissena spp.) to the Canadian province of British Columbia. We consider multiple
    scenarios and show how variations in budget constraints, propagule sources, and model uncertainty
    a ect the optimal policy. Based on these results, we identify simple, generally applicable principles
    for optimal AIS management.

  • Date created
  • Subjects / Keywords
  • Type of Item
    Article (Draft / Submitted)
  • DOI
  • License
    Attribution-NonCommercial 4.0 International