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This dataset assesses the responses of native (largemouth bass Micropterus salmoide and bluegill Lepomis macrochirus) and invasive (silver carp Hypophthalmichthys. Molitrix) fishes to an acoustic stimulus (playback of a 100 hp boat motor. Fish were collected from the Illinois River and Emiquon Preserve and implanted with a Passive Integrated Transponder (PIT) tag. Fish movement was monitored using PIT antennas installed in a water control structure (WCS) that connects the Emiquon Preserve to the Illinois River.
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Invasive Asian carps established in the United States spawn in turbulent water of rivers and their eggs and early larvae develop while drifting in the current. The eggs are slightly denser than water and are held in suspension by water turbulence. The eggs are believed to perish if they settle before hatching. It is thus possible to use egg drift modeling to assess the capability of a river to support survival of Asian carp eggs. Data to populate such models include the physical properties of the assessed rivers, and information on egg size, density, and terminal fall velocity (sinking rates). Herein, we present the physical characteristics of the eggs as a function of post fertilization time. We recorded mean egg...
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Silver carp (Hypophthalmichthys molitrix) are an invasive species in the Mississippi River Basin; understanding their vulnerability to predation as juveniles may inform control by native predators and predator stocking. Digestion of silver carp recovered from diets makes it difficult to determine the size classes most vulnerable to predation by native fishes. The objective of this study was to determine if total length of silver carp can be predicted from the size of their chewing pad, pharyngeal teeth, and pharyngeal arch, the structures most often found intact in diets. Juvenile silver carp (n=136: <180 mm) were collected using 60 hz pulsed- DC electrofishing and mini fyke nets in 2014 and 2015 from the La Grange...
    map background search result map search result map Data for "Comparison of size, terminal fall velocity and density of bighead, silver, and grass carp eggs for use in drift modeling" Using Pharyngeal Teeth and Chewing Pads to Predict Juvenile Silver Carp Total Length in the La Grange Reach, Illinois River: Data Evaluation of an acoustic fish deterrent system in shallow water application at the Emiquon Preserve, Lewistown, IL Data Evaluation of an acoustic fish deterrent system in shallow water application at the Emiquon Preserve, Lewistown, IL Data Using Pharyngeal Teeth and Chewing Pads to Predict Juvenile Silver Carp Total Length in the La Grange Reach, Illinois River: Data