Genetic structure and demographic history of endangered (Güldenstädt, 1814) populations from Lake Van basin in Turkey inferred from mtDNA analyses.

Genetic diversity, genetic structure, and demographic history of the endemic and endangered cyprinid species based on samples from 17 populations consisting of resident and potamodromous specimens from the Lake Van basin in eastern Turkey were analyzed using two mitochondrial DNA markers. populations in the Lake Van basin are genetically heterogeneous, as indicated by the high haplotype and low nucleotide diversity of 1233 bp of the 16S rRNA marker (44 haplotypes; 70 polymorphic sites, haploid diversity () = 0.9130, π = 0.

Genotyping and pathogenicity of viral hemorrhagic septicemia virus from free-living turbot (Psetta maxima) in a Turkish coastal area of the Black Sea.

Viral hemorrhagic septicemia (VHS) is one of the most serious fish viral diseases for cultured rainbow trout (Oncorhynchus mykiss), although VHS virus (VHSV) seems to be ubiquitous among marine fishes. In the present study, VHSV isolation was performed with free-living and cultured turbot (Psetta maxima) in the Trabzon coastal area of the Black Sea to evaluate participation of VHSV in mass mortalities of seed-produced turbot larvae. VHSV was detected in 14 of 66 free-living spawners (positive ratio, 21.