Do Channel Catfish Consume Zebra Mussels?

Authors

Casey M. Myers

Document Type

Article

Abstract

Channel catfish Ictalurus punctatus are a generalized opportunistic feeder with a wide range of diet compositions. In the Midwest, zebra mussels Dreissena polymorpha have quickly spread, causing large effects on aquatic ecosystems structures and functions. Channel catfish are known to consume native mollusks, however, little research has been done on the potential predation of zebra mussels by channel catfish. Therefore, the objective of this study was to analyze channel catfish diets to determine if zebra mussels are consumed. The channel catfish were obtained from the Sauk River chain of lakes between the dates of 14 June and 28 July 2023. The stomach contents identified to the lowest classification possible and counted. A total of 4 zebra mussels were found in the 38 stomachs that were sampled. Channel catfish do eat zebra mussels but it is likely done unintentionally when targeting other prey.

Publication Date

2023

Comments

Faculty sponsor: Dr. Andrew Hafs, Department of Biology, Aquatic Biology Program

Recommended Citation

Myers, Casey M., "Do Channel Catfish Consume Zebra Mussels?" (2023). Journal of Earth and Life Science. 4.
https://pines.bemidjistate.edu/j-earth-life-sci/4