Genetic connectivity and historical demography of the blue barred parrotfish (Scarus ghobban) in the western Indian Ocean

  title={Genetic connectivity and historical demography of the blue barred parrotfish (Scarus ghobban) in the western Indian Ocean},
  author={Shakil Visram and Mingqiu Yang and Ruby Moothien Pillay and Sadri Abdullah Said and Oskar Henriksson and Mats Grahn and Chaolun Allen Chen},
  journal={Marine Biology},
Studies on genetic connectivity are essential for the design of management strategies for coral reef fisheries. In this study we used a mitochondrial DNA marker to investigate population structure of the reef-associated parrotfish, Scarus ghobban, from four countries, Kenya, Mauritius, Seychelles and Tanzania, in the western Indian Ocean. We obtained nucleotide sequences of the mitochondrial control region for 117 individuals. Measures of haplotype diversity were relatively high. Pairwise… 
Population genetic structure and connectivity of the seagrass Thalassia hemprichii in the Western Indian Ocean is influenced by predominant ocean currents
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Genetic structure of the reef grouper Epinephelus merra in the West Indian Ocean appears congruent with biogeographic and oceanographic boundaries
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Genetic connectivity in a herbivorous coral reef fish (Acanthurus leucosternon Bennet, 1833) in the Eastern African region
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Genetic population structure of the convict surgeonfish Acanthurus triostegus: a phylogeographic reassessment across its range.
The correlation between pairwise ΦST values and geographic distance showed that dispersal of A. triostegus in the Indo-Pacific Ocean follows an isolation-by-distance model.
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High gene flow in reef fishes and its implications for ad-hoc no-take marine reserves
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RADseq analyses reveal concordant Indian Ocean biogeographic and phylogeographic boundaries in the reef fish Dascyllus trimaculatus
Investigation of the population structure of the three-spot damselfish Dascyllus trimaculatus in the Red Sea, Arabian Sea and Western Indian Ocean, using 1174 single nucleotide polymorphisms (SNPs), indicates that population-level divergences are largely concordant with biogeographic boundaries based on species composition.
Genetic diversity and spatial population structure of a deepwater snapper, Pristipomoides filamentosus in the south-west Indian Ocean
A population genetic analysis was conducted to determine the spatial genetic structure of the crimson jobfish and, whether different management units could be established in the region, using an analysis of both mitochondrial DNA fragment (mtDNA), and nuclear microsatellite loci.


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Geographic structure and gene flow in the manini (convict surgeonfish, Acanthurus triostegus ) in the south-central Pacific
The estimates of gene prior expectations of large oceanic transport in reef fish such as A. triostegus, inferred from their high passive dispersal capacities, mean that island populations can be considered as primarily self-seeding, despite genetic distance with geographic distance being observed.
High genetic connectivity across the Indian and Pacific Oceans in the reef fish Myripristis berndti (Holocentridae)
Despite having a vast distribution and broad depth range, M. berndti shows the genetic signatures of a pop- ulation bottleneck and recovery similar to shallow reef specialists that were displaced or extirpated during glacial maxima.
  • S. Planes, C. Fauvelot
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    Evolution; international journal of organic evolution
  • 2002
The results show that patterns of differentiation vary within the same species according to the spatial scale, with one group probably issued from vicariance, whereas the other followed a pattern of isolation by distance.
Crossing the impassable: genetic connections in 20 reef fishes across the eastern Pacific barrier
The EPB is sporadically permeable to propagules originating on either side, and migration across the EPB was previously thought to be exclusively eastward, but evidence showed two invasions from east to west and eight cases in which subsequent gene flow possibly proceeded in the same direction.
High genetic diversities and complex genetic structure in an Indo-Pacific tropical reef fish (Chlorurus sordidus): evidence of an unstable evolutionary past?
The patterns of population genetic structure recorded in C. sordidus are suggested to be caused by large local population sizes, high gene flow, and a recent history of repeated fragmentation and remixing of populations resulting from fluctuating sea levels.
Biogeography of a southern hemisphere freshwater fish: how important is marine dispersal?
Phylogeographic analyses of 163 control region haplotypes of G. maculatus indicate that inter‐continental marine dispersal occurs but is insufficient to prevent mitochondrial DNA differentiation among continents, and the sister relationship of Tasmanian and New Zealand clades implies that marine disperseal is an important biogeographical mechanism for this species.
Extreme genetic diversity and temporal rather than spatial partitioning in a widely distributed coral reef fish
It is concluded that increased taxon sampling of coral reef fishes for phylogeographic analysis will provide an extended view of the ecological and evolutionary processes shaping coral reef fish diversity at both ends of the life history spectrum.
Concordant evolutionary patterns among Indo-West Pacific Butterflyfishes
  • W. O. McMillan, S. Palumbi
  • Biology, Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1995
Low levels of within- and between-species genetic differences imply a recent divergence time and suggest a link between speciation within each group and Pleistocene climatic fluctuations, painting a turbulent picture of the recent evolutionary history of the Indo-West Pacific.
The genetic pattern of population threat and loss: a case study of butterflies
Comparison of population demographic trends in species with biogeographical patterns reveals higher rates of decrease with lower genetic diversity, which indicates reduced adaptability due to genetic impoverishment as a result of glacial and postglacial range changes.