It depends on what you want and the conditions.
New study from AFS on the subject of Fla LMB vs Nth LMB and their mixed offspring. In this study the South Carolina, frequencies of FLMB alleles ranged from 98% in Lake Moultrie, a Coastal Plain reservoir, to 36% in Lake Wateree, a Piedmont reservoir.
Performance Differences between Two Endemic Stocks of
Largemouth Bass in South Carolina
JEAN LEITNER* AND JAMES BULAK
South Carolina Department of Natural Resources, 1921 Vanboklen Road,
Eastover, South Carolina 29044, USA
Abstract.—A common-garden experiment was conducted to compare growth of two stocks of largemouth bass Micropterus salmoides, one from the Coastal Plain and one from the Piedmont region of South Carolina. An equal number of fish from each stock were released at age 0 in Lake Paul Wallace, a 113-ha municipal impoundment in South Carolina’s Coastal Plain. Boat electrofishing during spring was used to sample the population at ages 1, 3, and 4. Relative survival, mean length and weight, weight frequency distributions, and weight–length relationships were compared between stocks. The Piedmont stock was significantly larger at age 1, whereas the Coastal Plain stock was larger at ages 3 and 4. The weight frequency distributions differed between stocks, as did the weight–length relationships. The total catch for each stock was not proportionally different from stocking rates at age 1. However, the catch of the Coastal Plain stock was significantly higher at ages 3 and 4, suggesting better survival to those ages. We conclude that these two endemic stocks exhibited different performance at one study site in the Coastal Plain. Further evaluations across regions are needed to better define the performance of these two stocks of largemouth bass and ascertain appropriate stocking regions for each stock.
North American Journal of Fisheries Management 28:516–522, 2008
Copyright by the American Fisheries Society 2008
Here is a basic overview from the study but there is more not said.
Two subspecies of largemouth bass Micropterus
salmoides, the Florida M. s. floridanus and the northern
M. s. salmoides, were first described by Bailey and
Hubbs (1949). Kassler et al. (2002) proposed divergence
of the two warranted species designation. Philipp
et al. (1983) showed that (1) the native range of the
Florida largemouth bass (FLMB) was restricted to
peninsular Florida; (2) the northern largemouth bass
(NLMB) was native to waters north of Maryland along
the Atlantic coast, and then west to the Mississippi
River; and (3) a hybrid
zone existed between the ranges
of the two. The FLMB, NLMB, and their hybrids
interbreed where they coexist (Isely et al. 1987;
Gilliland and Whitaker 1991; Philipp and Whitt 1991).
Physiological and ecological differences among
FLMB, NLMB, and their hybrids have been documented.
For example, they exhibited different critical
and chronic thermal maxima (Fields et al. 1987) and
different mortality rates when held at low temperatures
(Carmichael et al. 1988). In addition, FLMB and
NLMB differ in the timing of spawning, growth rate,
reproductive success, and survival (Isely et al. 1987;
Gilliland and Whitaker 1991; Philipp and Whitt 1991).
Performance differs among endemic units within the
historic range of FLMB and NLMB. For example,
growth and survival differed between progeny of
parents from different drainages in Illinois (Philipp
and Claussen 1995). Similarly, swimming performance
differed between Illinois and Wisconsin populations of
bass (Cooke et al. 2001). Lastly, the survival, growth,
and reproductive success of the local stock were higher
than those of the nonlocal stock when comparing
performance among Wisconsin, Illinois, Texas, and
Florida populations at each locale (Philipp et al. 2002).South Carolina is located in the hybrid
zone ....
Other threads
http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=22664&fpart=1 Calif LMB - LMB growth at cold temps
http://www.pondboss.com/forums/ubbthread...d7475#Post87610 Bill Dance Fla LMB
http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=101702&fpart=1 winter feeding
From the above wrt Calif.
Here is some direct data from one of the Calif. lakes in question. In the same lake under the same conditions Fla. and Northerns. There are also some interesting text points I will try to scan tomorrow. Here is a chart. The chart is of age , length and weight.
Nort. ------------------ Fla.
1- 6.07 - .20 ----------1- 5.92 - .15
2- 11.62 - 1.10 --------2- 12.75 - 1.50
3- 14.73 - 2.15 --------3- 15.69 - 2.84
4- 16.37 - 2.91 --------4- 17.65 - 4.15
5- 17.94 - 3.80 --------5- 20.39 - 6.44
6- 19.11 - 4.57 --------6- 22.05 - 8.32
7- 20.28 - 5.39 --------7- 23.08 - 9.61
8- 20.35 - 5.53 --------8- 23.36 - 10.05
9- none none ----------9- 24.80 - 12.15
10- none none --------10- 25.63 - 13.32
A couple of their points - Flas live longer that is why no data on 9+ yr. Nort. - Waters rarely drops to 50 and thus a year long growth season - while shad are a forage RT were necessary to get to very large size - RT stocked in coldwater mths at 9-11 inches no fear and fat are easy pickings for large LMB - big LMB do not go deep after shad ( + 30 ft.) in winter but stay up ( less than 25 ft.) and eat RT and craws.
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