The largemouth bass Micropterus salmoides (Lacepède, 1802): impacts of a powerful freshwater fish predator outside of its native range

Stocks of northern largemouth bass (NLMB), Micropterus salmoides salmoides, Florida largemouth bass (FLMB), M. s. floridanus, and both reciprocal F1 hybrids were produced through natural spawning; the genetic composition of each stock was confirmed electrophoreticaliy, and experimental populations established. One set of experimental populations (P1 and P2) contained as broodstock equal numbers of adult NLMB and FLMB, whereas the other set (H1 and H2) initially contained equal numbers of adults of both reciprocal F1 hybrids and both pure subspecies. Each year-class produced experimentally were sampled and individuals analyzed genetically to determine their parentage. Initially, much of the YOY production in P1 and P2 was composed of small FLMB that did not survive winter well; once naturally produced F1 hybrids entered the breeding pool, most offspring were Fx hybrids, and the population became heavily introgressed. In H1 and H2 introgression began with the production of the first year-class. Within each year-class NLMB produced in all ponds were significantly larger than all other genotypes, but it appears likely that after only a few generations, production of pure NLMB ceases, all individuals being Fx hybrids. Results illustrate the potential negative impacts of introducing FLMB or hybrids between it and NLMB into waters within or contiguous to the native range of the northern subspecies.

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Physiological Responses of Largemouth Bass, Micropterus salmoides, Exposed to Salinity

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f90-262 ◽

1990 ◽

Vol 47 (12) ◽

pp. 2358-2363 ◽

Cited By ~ 20

Author(s):

M. R. Meador ◽

W. E. Kelso

Keyword(s):

Osmotic Stress ◽

Ion Transport ◽

Freshwater Fish ◽

Largemouth Bass ◽

Laboratory Experiments ◽

Micropterus Salmoides ◽

Physiological Responses ◽

Plasma Chemistry ◽

Elevated Plasma ◽

Active Ion Transport

Plasma osmotic and electrolyte concentrations as well as branchial Na+/K+ and Mg++ ATPase activities were determined in the field for largemouth bass, Micropterus salmoides, from a brackish marsh and freshwater lake in southcentral Louisiana. Laboratory experiments were conducted to evaluate plasma chemistry and gill ATPase activities of largemouth bass from both locations exposed to 0, 4, 8, and 12‰ salinity. No significant differences in physiological responses were detected between marsh and freshwater largemouth bass exposed to 0, 4, or 12‰. Exposure to 12‰ salinity resulted in osmotic stress in largemouth bass from both locations. At 8‰, marsh largemouth bass had significantly higher plasma solutes and lower gill ATPase activities than freshwater fish. Different physiological responses by marsh and freshwater largemouth bass during exposure to 8‰ salinity indicated that marsh largemouth bass have adapted to environments of variable salinity by reducing active ion transport and tolerating elevated plasma son levels.

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Validation of annulus formation in otoliths of largemouth bass Micropterus salmoides outside their native range

Journal of Applied Ichthyology ◽

10.1111/jai.12150 ◽

2013 ◽

Vol 29 (2) ◽

pp. 381-386 ◽

Cited By ~ 4

Author(s):

G. C. Taylor ◽

O. L. F. Weyl

Keyword(s):

Largemouth Bass ◽

Micropterus Salmoides ◽

Native Range ◽

Annulus Formation

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Performance as a fish predator of largemouth bass [Micropterus salmoides (Lacepède)] invading Japanese freshwaters: a review

Ecological Research ◽

10.1007/s11284-007-0415-7 ◽

2007 ◽

Vol 22 (6) ◽

pp. 940-946 ◽

Cited By ~ 36

Author(s):

Kenzi Takamura

Keyword(s):

Largemouth Bass ◽

Micropterus Salmoides ◽

Fish Predator

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Coarse woody habitat does not predict largemouth bass young of year mortality during the open-water season

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/cjfas-2018-0050 ◽

2019 ◽

Vol 76 (6) ◽

pp. 998-1005 ◽

Cited By ~ 2

Author(s):

Jacob P. Ziegler ◽

Colin J. Dassow ◽

Stuart E. Jones ◽

Alexander J. Ross ◽

Christopher T. Solomon

Keyword(s):

Mortality Rate ◽

Freshwater Fish ◽

Largemouth Bass ◽

Micropterus Salmoides ◽

Open Water ◽

Mortality Rates ◽

In Situ Tests ◽

Coarse Woody Habitat ◽

The Relationship

Littoral structure is often assumed to provide refuge to young of year (YOY) freshwater fish species, but empirical in situ tests of this relationship are lacking. We estimated mortality rates of YOY largemouth bass (Micropterus salmoides) over the open-water season in 13 lakes in northern Wisconsin and Michigan using repeated snorkel surveys. Our goal was to test the hypothesis that mortality rate is negatively related to the abundance of littoral coarse woody habitat, which ranged from 3 to 1500 pieces of wood per kilometre of shoreline in these lakes. Instantaneous mortality rates were well-constrained and ranged from 0.04 to 0.19 among the 13 lakes. Mortality was not related to coarse woody habitat abundance. Our results suggest that the relationship between coarse woody habitat and YOY mortality might not be as strong or universal as is often assumed.

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