There is a lot here on the topic using the search feature. This has been widely discussed and is highly disputed regarding the genetics. I have seen no info that outbreeding depression occurs in any study where several strains of LMB have been stocked. In fact, there is a natural overlap in zones where all occur and many studies with no mention of outbreeding depression. See map below. Outbreeding depression usually occurs where 2 different species have been crossed not where the same species (very closely related genetics) are crossed. I am aware that others have a different opinion.

IMO it would be a mistake for you to use Fla LMB in Kansas. I am not sure I would even use F-1s. Not because of the crossing issue but because of poor performance outside of the south. There is a study done in Okla. on Fla LMB and offspring and the results were not good where the waters iced over.





[Linked Image from i74.photobucket.com]


https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=141071&page=1

https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=401108&page=1

https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=529626

Last edited by ewest; 07/27/22 11:25 AM.