Browsing by Subject "Cyprinus carpio"

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    Data from: Tests in a semi-natural environment suggest that bait and switch strategy could be used to control invasive Common Carp
    (2020-07-10) Hundt, Peter J; Amberg, Jon; Sauey, Blake; Vacura, Kristen; Bajer, Przemyslaw G; hundt002@umn.edu; Hundt, Peter J; Minnesota Aquatic Invasive Species Research Center (MAISRC)
    Common Carp (Cyprinus carpio Linnaeus, 1758), is a highly invasive species that has had profound effects on biodiversity and ecosystem services. Many Carp management methods have been applied including physical removal, pesticide treatments of whole lakes, and water drawdowns. Herein, we tested key elements of a potential “bait and switch” approach in which corn could be used to induce feeding aggregations of Carp and then switched for corn pellets with a pesticide Antimycin-A (ANT-A) to selectively target the Carp. First, laboratory experiments were used to determine if addition of lethal concentrations of ANT-A to corn pellets deterred Carp from eating corn-based food pellets. Second, a pond experiment tested if a corn-based bait containing ANT-A functioned as a species-specific Carp management tool in a semi-natural environment with three common native fishes: White Sucker (Catostomus commersonii Lacepède, 1803), Yellow Perch (Perca flavescens, Mitchill, 1814), and Bluegill (Lepomis macrochirus Rafinesque, 1819). The use of baited sites by Carp and native species was monitored using passive integrated transponder (PIT) tags. Mortality of each species and presence of corn in their digestive tracts was also monitored.
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    Partial migration, homing, diel activity, and distribution of adult common carp across a large, model watershed in the North American Midwest
    (2016-08) Banet, Nathan
    Long-term and sustainable management of invasive fish requires an understanding of annual patterns in distribution and migration. This study hypothesized that the common carp (Cyprinus carpio), an invasive temperate cyprinid fish, employs a complex multi-phase life history strategy that incorporates sequential partial migrations within an annual life cycle. This life cycle may explain its success and invasiveness. A large scale, multi-year, year-round tracking study was conducted in a large watershed of 12 interconnected lakes that is representative of much of North America where it is highly invasive. This is the first known large scale multi-year study on the movement of a partially migratory invasive fish. For three winters, over 90% of adult carp were observed to overwinter and form large aggregations in one lake. Once temperatures were between 5-10°C in the spring, most adults (82% in 2014, 98% in 2015, and 98% in 2016), but not all, performed migrations to shallow lakes to spawn. Of these, most (86% in 2014, 96% in 2015, and 100% in 2016) used one stream of four to migrate. Such a precise form of breeding partial migrations has not previously been documented. Most migratory adults (81%) were then observed using the same lakes each year during spawning. After spawning, some adults (46% in 2014 and 80% in 2015), but not all, left their lakes and then spent the majority of the summer, presumably feeding in just one or two lakes out of 12. This would appear to reflect a second partial migration and a tendency to use home summer feeding ranges. In the fall, most adult carp (57% in 2014 and 93% in 2015) then returned to same lake from which migrations began. This would appear to reflect a third partial migration associated with overwintering. This flexible life history strategy can be categorized by six phases: overwintering, breeding partial migration, spawning in home lakes, summer partial migrations, feeding in home lakes, and partial migration to an overwintering (refuge) lake. We also found evidence of homing in how carp selected migratory paths, spawning lakes, feeding lakes, and overwintering lakes. This flexible, but highly directed life history strategy is seemingly new and could explain the success and invasiveness of common carp while providing options for control.