Search results for "Cichlidae"

showing 3 items of 3 documents

Human-induced hybridization and population bottleneck : population genetics, morphometrics and parasitology applied to the invaded and invasive tilap…

2011

Biological invasions are recognized as a significant evolutionary factor over short time scales. In particular, their effect is well recorded on the genetic structure of populations, the patterns of phenotypic evolution and the richness of parasite fauna associated to invasive populations. This study aims at quantifying the consequences of a biological invasion according to these three levels (genetical, phenotypical and parasitological) taking as example the Mozambique tilapia Oreochromis mossambicus. This African cichlid is characterized by an unusual conservation status since it is both (i) ranked among the world’s worst invasive species due to its global dispersion during the 20th centu…

[SDV.SA]Life Sciences [q-bio]/Agricultural sciencesÉvolution contemporaine[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesGeometric morphometricsFounding event[SDV.MHEP] Life Sciences [q-bio]/Human health and pathologyIntrogressionHybridationÉvènement fondateurContemporary evolutionCichlidaeMonogenean parasitesPression de propaguleParasites monogènesMorphométrie géométriqueInvasion biologique[ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathologyBiological invasionsHybridization[ SDV.SA ] Life Sciences [q-bio]/Agricultural sciences[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyTilapiaPropagule pressure
researchProduct

Data from: Successive invasion-mediated interspecific hybridizations and population structure in the endangered cichlid Oreochromis mossambicus

2013

Hybridization between invasive and native species accounts among the major and pernicious threats to biodiversity. The Mozambique tilapia Oreochromis mossambicus, a widely used freshwater aquaculture species, is especially imperiled by this phenomenon since it is recognized by the IUCN as an endangered taxon due to genetic admixture with O. niloticus an invasive congeneric species. The Lower Limpopo and the intermittent Changane River (Mozambique) drain large wetlands of potentially great importance for conservation of O. mossambicus, but their populations have remained unstudied until today. Therefore we aimed (1) to estimate the autochthonous diversity and population structure among genet…

medicine and health careOreochromis andersoniiHolocenetilapiamtDNAAnthropoceneOreochromis niloticusMedicineGenetic resourceCichlidaeamplified fragment length polymorphism (AFLP)Life sciencesOreochromis mossambicus
researchProduct

(no title)

2017

Biological invasions are recognized as a significant evolutionary factor over short time scales. In particular, their effect is well recorded on the genetic structure of populations, the patterns of phenotypic evolution and the richness of parasite fauna associated to invasive populations. This study aims at quantifying the consequences of a biological invasion according to these three levels (genetical, phenotypical and parasitological) taking as example the Mozambique tilapia Oreochromis mossambicus. This African cichlid is characterized by an unusual conservation status since it is both (i) ranked among the world's worst invasive species due to its global dispersion during the 20th centu…

tilapia[SDV.OT] Life Sciences [q-bio]/Other [q-bio.OT]biological invasionsintrogressionmonogenean parasitesCichlidaeévolution contemporainemorphométrie géométriquepression de propaguleparasites monogènesfounding eventinvasion biologiquepropagule pressurecontemporary evolutionévènement fondateurgeometric morphometricshybridationhybridization
researchProduct