Yes other studies show to a certain degree that most pond fish are subject to the same problems. All species have not been studied as far as I can tell however. There are IMO no expert answers only ideas to look into. There is disagreement as to whether outbreeding depression exists in Fla/Northern (F-1 , Fx) LMB in their natural integrate zone or similar climate areas. IMO nothing shows that outbreeding depression exists in those areas. I have not seen or heard of a single incident being reported. Fla and Northerns are so close genetically (not like crossing 2 distinct species like GSF and BG) that it may not apply at all. I will find the thread link on this.

Genetic rescue is a very interesting subject without a lot of available data for fish. The concept has been used by fisheries managers for a long time.

Original thread -- http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=58265&page=1

Phillip study 2010 -- http://forums.pondboss.com/ubbthreads.ph...true#Post159224



Catachibility search - http://forums.pondboss.com/ubbthreads.php?ubb=dosearch&topic=0&Searchpage=1

LMB outbreeding depression thread. Neal , West , Gallus , Overton and others.

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=185000&page=1

Admixture Analysis of Florida Largemouth Bass and

Northern Largemouth Bass using Microsatellite Loci

DIJAR J. LUTZ-CARRILLO*

CHRIS C. NICE, TIMOTHY H. BONNER, AND MICHAEL R. J. FORSTN

LORAINE T. FRIES



Transactions of the American Fisheries Society 135:779�791, 2006

 Copyright by the American Fisheries Society 2006



We found no evidence of a heterotic effect (in terms

of size) resulting from first-generation crosses between

Florida largemouth bass and northern largemouth bass.

The majority of trophy-sized fish with an admixed

genome were later-generation hybrids with a larger

percentage of Florida largemouth bass alleles. There

was also no observable negative impact on size from

the admixed genetic background in these fish, most

likely because of the modified environment to which

they were introduced and the nonadaptive radiation of

micropterids (Near et al. 2003).




Last edited by ewest; 07/18/17 08:48 PM.