Mediterranean finfish aquaculture is mainly represented by the production of the gilthead sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax) growing in marine cage farms. Despite the numerous benefits of fish farming, the ecological risk potentially caused by fish escapes to the wild populations is occasionally high. In the current study, an integrated review of fish escapes is presented regarding S. aurata and D. l...

Aim We compared the power of different nuclear markers to investigate genetic structure of southern Balkan wild boar. We distinguished between historic events, such as isolation in different refugia during glacial periods, from recent demographic processes, such as naturally occurring expansions. Location Southern Balkans/Greece. Methods We sampled 555 wild boars from 20 different locations in southern Balkans/Greece. All indi...

The genetic diversity of Greek wild and farmed populations of Sparus aurata was investigated using seven microsatellite markers. Selective breeding programmes and founder effects have altered the composition of farmed populations leading to significant population differentiation between wild and cultured populations and lower allelic richness in farmed populations.

Analysis of the genetic structure of the Norway lobster ( Nephrops norvegicus ), a marine crustacean with high commercial value, was undertaken to gain information regarding the differentiation of Atlantic from Mediterranean populations of marine invertebrates. Restriction fragment length polymorphism analysis of two mitochondrial DNA segments, 3.6 kilobases in total, was performed. Twelve populations from the North Sea, Irish...

The genetic structure of Silurus glanis (Europe’s largest freshwater fish species) across most of its natural distribution was investigated using 10 microsatellite loci. The revealed levels of genetic diversity were much higher than previous allozyme and restriction fragment length polymorphism mitochondrial DNA analyses had shown; relative levels of variability among populations were however, in good agreement with the previo...

Mitochondrial DNA diversity of 13 wild Silurus glanis populations (covering the entire range of the species) and eight hatchery populations was investigated. PCR‐RFLP analysis of four regions of mitochondrial DNA (cytochrome b, control region, ND‐5/6) was used. Nineteen haplotypes were found. Thirteen of them were private. The proportion of total genetic diversity attributable to population differentiation was almost 80%. Desp...