Infections of Seriola quinqueradiata Temminck & Schlegel and S. dumerili (Risso) in Japan by Benedenia seriolae (Monogenea) confirmed by morphology and 28S ribosomal DNA analysis.
The study was conducted to determine B. seriolae infections of S. quinqueradiata and S. dumerili as confirmed by morphology and ribosomal DNA analysis. Monogenean parasites were removed from the flanks of killed specimens and preserved in either 100% ethanol or 10% buffered formalin. The Benedenia isolates removed from the skin of fishes revealed no major morphological differences. Nucleotide data from the 28S rDNA LSU region of the two putative B. seriolae isolates from Seriola species produced 818 nucleotides. Isolates of B. seriolae from S. quinqueradiata and S. dumerili were identical in sequence over the entire 820 nucleotide site allignment. Sequence data in this article have been deposited in the GenBank Data Libraries under accession numbers AY033941, AY033939 and AY033940.