Genetic survey of crucian carp Carassius carassius populations in Hungary for a conservation project to establish live gene bank.

The crucian carp (Carassius carassius Linnaeus, 1758) is a declining native European cyprinid, inhabiting small water bodies, primariliy threatened by climate change, anthropogenic impacts and invasive relative the Prussian carp. Despite conservation efforts across Europe, data on Carphatian Basin populations remain scarce. This study analyzed nine natural populations (257 individuals) in Hungary using thirteen microsatellite markers and mitochondrial DNA COI sequencing (187 individuals).

Distribution and conservation status of loaches in Hungary.

We provide an overview of the distribution of loaches in Hungary and evaluate their status from a conservation viewpoint. Fish faunistic data, from the last twenty-five years (1975-2000) were reviewed to show the distribution of four genera of loaches: Barbatula, Misgurnus, Cobitis and Sabanejewia. Based on fish occurrence data, distribution maps were drawn to evaluate the abundance of species (B.