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Using Pharyngeal Teeth and Chewing Pads to Predict Juvenile Silver Carp Total Length in the La Grange Reach, Illinois River: Data

Dates

Publication Date
Start Date
2014-06-08
End Date
2015-06-10

Citation

Jon M Vallazza, Eli G Lampo, Brent C Knights, Will T Rechkemmer, Cory A Anderson, Levi E Solomon, Andrew F Casper, Richard M Pendleton, and James T Lamer, 2017, Using Pharyngeal Teeth and Chewing Pads to Predict Juvenile Silver Carp Total Length in the La Grange Reach, Illinois River: Data: U.S. Geological Survey data release, https://doi.org/10.5066/F7JH3K38.

Summary

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 Reach of the Illinois [...]

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Chewing Pad.csv 10.2 KB
Pharangeal teeth.csv 19.14 KB
Using_Pharyngeal_Teeth_and_Chewing_Pads_to_Predict_Juvenile_Silver_Carp_Total_Length_in_the_La_Grange_Reach_Illinois_River.xml
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Purpose

These data were used to determine if anatomical structures that are typically undigested when silver carp are consumed by predatory fishes can be used to predict the length of the silver carp prior to be consumed. These data provide a baseline for the relationship between the morphometrics of these anatomical structures and the total length of the silver carp.

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  • Upper Midwest Environmental Sciences Center (UMESC)

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