A Modified Purse Seine to Remove Invasive Carp from Midwestern Waterways

In the pursuit of innovative tools to manage invasive carp, Columbia Fish and Wildlife Conservation Office is developing a modified purse seine. Unlike most pelagic purse seines, it has been adapted specifically for use in riverine habitats where snags, current, and confined spaces abound. The goals of this gear are threefold. First, it must address a wide variety of habitats. Second, it must be highly efficient at removing large quantities of fish. Third, it must be capable of quick deployment and re-deployment as part of rapid response efforts. After much research and development, a fully functioning riverine purse seine deployed from a customized vessel is being implemented in invasive carp management efforts. The system includes a seine net with a modified bunt, a specially made purse ring deployment and re-deployment device, and an electric pursing and brailing apparatus.  These innovations allow operation with minimal crew and boats. It can be deployed and retrieved quickly in a multitude of habitats including open water, behind dikes, and within tributaries. Furthermore, this expedited sampling method allows by-catch to be returned to the water unharmed. This presentation discusses the development and application of the purse seine as it is put into action.