2000
DOI: 10.1111/j.0014-3820.2000.tb00023.x
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BARRIERS TO GENE FLOW INEMBIOTOCA JACKSONI, A MARINE FISH LACKING A PELAGIC LARVAL STAGE

Abstract: Abstract. Marine species generally show high dispersal capabilities, which should be accompanied by high levels of gene flow and low speciation rates. However, studies that focused on the relationship between dispersal and gene flow in marine fishes have been inconclusive. This study focuses on the black surfperch, Embiotoca jacksoni, a temperate reef fish that lacks a pelagic larval stage and lives on almost continuous reefs along the California and Baja California coasts. Mitochondrial control-region sequenc… Show more

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Cited by 11 publications
(14 citation statements)
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“…This similarity could be the result of genetic exchange due to migration of adults or subadults or to a unique founder event in H and S from genetically similar animals. The H-S gene flow levels of A. polyacanthus were similar to those of black surfperch, Embiotoca jacksoni (28), a species that also lacks a pelagic phase and lives on almost continuous reefs along the California and Baja California coasts (29).…”
Section: Discussionmentioning
confidence: 70%
“…This similarity could be the result of genetic exchange due to migration of adults or subadults or to a unique founder event in H and S from genetically similar animals. The H-S gene flow levels of A. polyacanthus were similar to those of black surfperch, Embiotoca jacksoni (28), a species that also lacks a pelagic phase and lives on almost continuous reefs along the California and Baja California coasts (29).…”
Section: Discussionmentioning
confidence: 70%
“…However, as sea level began to rise and coastal basins became deeper, population connectivity may have been reduced resulting in the more recent expansion estimate for Santa Catalina in the early to mid-Pleistocene and the observation of relatively low mitochondrial diversity (e.g., only two haplotypes). Deep-water basins have been shown to be effective barriers to population connectivity among the northern Channel Islands (Bernardi 2000) and in taxa distributed on both sides of the San Pedro Basin within the Southern California Bight (e.g., between Santa Catalina Island and the southern California coastline) (Gaida 1997; Bernardi 2000; Plank et al. 2010).…”
Section: Discussionmentioning
confidence: 99%
“…The existence of barriers to gene flow has been reported for several marine organisms (Johnson & Black 1995, Ruckelshaus 1998, Bernardi 2000, Riginos & Nachman 2001, including algae (Faugeron et al 2001, Billot et al 2003. All these studies represent examples of natural barriers that have been present for a much longer time, however, and therefore have affected a much higher number of generations of the species under study.…”
Section: Genetic Differentiation Due To Habitat Disruptionmentioning
confidence: 95%
“…Furthermore, there is increasing evidence that these habitat discontinuities represent a key factor in reducing gene flow among marine populations and, thus, favours genetic differentiation. Examples include rock-reef fishes, where sandy beaches or deeper waters among islands can inhibit gene flow even in the presence of tidal currents (Bernardi 2000, Riginos & Nachman 2001, intertidal snails (Johnson & Black 1995) and other animal populations (reviewed by Palumbi 1994, Bohonak 1999. In seaweeds, accumulating evidence shows that, in most cases, gene flow occurs mainly between populations separated by short distances as a result of their short dispersal capacity .…”
Section: Introductionmentioning
confidence: 99%
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