some academic studies of the bowfin below (basically they prey on crayfish most when present, and small panfish and invertebrates next)they are in most waters a low yield fish when compared to other "gamefish"

https://thekeep.eiu.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsredir=1&article=2692&context=theses

http://images.library.wisc.edu/EcoNatRes/EFacs/FishesWI/reference/econatres.fisheswi.i0020.pdf

https://www.researchgate.net/publication...m-Sized_Aquaria

https://pdfs.semanticscholar.org/1f58/8e40fb7d4081af93947889fa442c79b9c8c7.pdf