A Genetic Comparison of Allopatric Populations of Shore Fish Species from the Eastern and Central Pacific Ocean: Dispersal or Vicariance?

Rosenblatt, Richard H.; Waples, Robin S.

doi:10.2307/1444988

Cited by 102 publications

(67 citation statements)

References 29 publications

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“…Phylogeographic analyses of 20 trans-Pacific fish species showed that directionality of gene flow across this barrier is not as universal as had been assumed; while some fishes exhibit bidirectional gene flow, others show predominant patterns of migration in either westward or eastward directions (Lessios and Robertson 2006). These results challenge the long assumed view (Ekman 1953;Briggs 1974;Dana 1975;Vermeij 1978;Glynn et al 1983;Rosenblatt and Waples 1986;Vermeij 1991) that initial colonization and subsequent gene flow across the EPB occur exclusively in an eastward direction and call for further investigations of patterns of genetic exchange of populations separated by this barrier.…”

Section: Introductionmentioning

confidence: 89%

Connectivity of populations within and between major biogeographic regions of the tropical Pacific in Conus ebraeus, a widespread marine gastropod

Duda

Lessios

2009

Coral Reefs

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Information on genetic connectivity and structure of populations in the tropical Pacific is critical for making inferences about the origins and maintenance of diversity in this region. Sequences of the mitochondrial COI gene from 92 individuals of the trans-Pacific gastropod Conus ebraeus from eight localities spanning the tropical Pacific were analyzed to determine whether populations in the western, central, and eastern Pacific exhibit genetic structure, to examine the demographic histories of populations, and to infer patterns of gene flow. A total of 43 unique haplotypes were recovered, including a common haplotype that occurred in six of the eight populations examined. AMOVA and pairwise F-statistics showed that populations in the western and central Pacific were significantly differentiated from populations in the eastern Pacific, but no other evidence of structure. Bayesian isolation-migration (IM) analysis suggested that populations in the western and central Pacific separated from those in eastern Pacific during the Pleistocene. Examination of mismatch distributions and results from IM revealed that populations in the western and central Pacific expanded during the Pleistocene. Gene flow across the East Pacific Barrier appears to occur predominantly westward.

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Section: Introductionmentioning

confidence: 89%

Connectivity of populations within and between major biogeographic regions of the tropical Pacific in Conus ebraeus, a widespread marine gastropod

Duda

Lessios

2009

Coral Reefs

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“…Lutjeharms & Heydorn 1981a, b, Pillai et al 1983. High degrees of genetic similarity across wide regions, even among populations separated by thousands of km of open water, reflect ongoing gene flow or recent periods of dispersal (Rosenblatt & Waples 1986, Mitton et al 1989, Lacson 1992. The widespread pelagic distributions of the larvae of reef dwellers, their morphological specializations, and the evidence for long-distance transport, signify that at least some species are typically subject to wide dispersal in the larval stage.…”

Section: Introductionmentioning

confidence: 99%

Recruitment of coral-reef fishes to Bermuda: local retention or long-distance transport?

Schultz

Cowen²

1994

Mar. Ecol. Prog. Ser.

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The benthic marine fauna of isolated oceanic islands may be self-seeding, or alternatively may be continually supplied with recruits advected from elsewhere by ocean currents. Estimates of the time required for transport of larvae from elsewhere was combined with information on the larval durations of fishes inhabiting the reefs of Bermuda, to test the hypothesis that other populations are sources for recruits to Bermuda. Specifically, we tested the prediction that transport occurs frequently enough to sustain local populations of reef fishes. Transport of larvae was modelled as a 2-step process in several numerical simulations. The first step of transport was assumed to occur via the Gulf Stream. The second step, in which larvae are transported across the northern Sargasso Sea to Bermuda, was modelled in several different ways, Involving either cold-core rings thrown off by the Stream, or mixtures of Gulf Stream and Sargasso water entrained by cold-core rings. Travel distances and speeds were estimated from a variety of sources, focusing on satellite imagery of sea-surface temperature Pelag~c larval durations (PLDs) for reef f~s h on Bermuda were analyzed from the daily age record in the otoliths of 6 wrasse and 1 parrotfish species. When PLDs were compared with transport times, it was determined that transport events would occur too infrequently to sustain Bermudian populations of reef fishes. The PLDs for most of these species are similar to results obtained elsewhere in their geographic range. It is evident that these populations must be mainly replenished via a pool of larvae that are spawned locally and retained in the vicinity of the Bermuda islands.

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“…Phylogeographic studies of the Point Conception oceanographic break have focused on fish and invertebrate species primarily using allozymes (e.g., Davis et al 1981;Rosenblatt and Waples 1986;Waples and Rosenblatt 1987;Hellberg 1995Hellberg , 1996Edmands et al 1996) and more recently nuclear and mitochondrial DNA molecular markers (Burton and Lee FIG. 5.…”

Section: Point Conceptionmentioning

confidence: 99%

BARRIERS TO GENE FLOW INEMBIOTOCA JACKSONI, A MARINE FISH LACKING A PELAGIC LARVAL STAGE

Bernardi

2000

Evolution

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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 sequences from 240 individuals were obtained, and phylogeographic patterns were analyzed. A major phylogeographic break was found at Santa Monica Bay, a sandy expanse that prevents adult dispersal. Deep water separating the southern California Channel Islands was also found to be a major barrier to gene flow. Minor phylogeographic breaks were also detected in the Big Sur/Morro Bay and in the Punta Eugenia/Guerrero Negro regions, but none in the Point Conception region. Gene flow levels in E. jacksoni were found to be almost identical to those of another species with limited dispersal, Acanthochromis polyacanthus, thus indicating that the lack of a pelagic larval stage combined with barriers to adult dispersal may have had similar effects on these two species.

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A Genetic Comparison of Allopatric Populations of Shore Fish Species from the Eastern and Central Pacific Ocean: Dispersal or Vicariance?

Cited by 102 publications

References 29 publications

Connectivity of populations within and between major biogeographic regions of the tropical Pacific in Conus ebraeus, a widespread marine gastropod

Connectivity of populations within and between major biogeographic regions of the tropical Pacific in Conus ebraeus, a widespread marine gastropod

Recruitment of coral-reef fishes to Bermuda: local retention or long-distance transport?

BARRIERS TO GENE FLOW INEMBIOTOCA JACKSONI, A MARINE FISH LACKING A PELAGIC LARVAL STAGE

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