The stomachs of 179 largemouth basses and 125 pikes were examined.
LORENZONI M., CORBOLI M., DÖRR A. J.M., GIOVINAZZO G., SELVI S., MEARELLI M. 2002, 'DIETS OF MICROPTERUS SALMOIDES LAC. AND ESOX LUCIUS L. IN LAKE TRASIMENO (UMBRIA,ITALY) AND THEIR DIET OVERLAP.', Knowledge and Management of Aquatic Ecosystemshttp://dx.doi.org/10.1051/kmae:2002050. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
When a piscivore (largemouth bass) was present in the tank with both species, the survival of sunfish decreased.
Charles W. Martin, Marla M. Valentine, John F. Valentine 2010, 'Competitive Interactions between Invasive Nile Tilapia and Native Fish: The Potentialfor Altered Trophic Exchange and Modification of Food Webs', PLoS ONE10.1371/journal.pone.0014395. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)