Second world record for Barathronus roulei Nielsen, 2019 (Ophidiiformes, Bythitidae), from the Porcupine Bank (Northeast Atlantic).

Barathronus is a genus of blind cusk eels comprising 11 valid species. In this paper, we report the second specimen ever documented of Barathronus roulei (Bythitidae) obtained from the Porcupine Bank by R.V.

Phylogenetic comparison of opine dehydrogenase sequences from marine invertebrates.

Three cDNA sequences encoding putative opine dehydrogenase (OpDH) enzymes from the mussel Mytilus galloprovincialis were obtained. The deduced amino acid sequences were clearly distinguishable from each other, showing that several OpDH transcripts could occur in the mussel tissues (p distance 0.46-0.

Identification of octopine dehydrogenase from Mytilus galloprovincialis.

A cDNA encoding the putative octopine dehydrogenase (OcDH) from the mussel Mytilus galloprovincialis was cloned and sequenced. The complete coding region was expressed in the bacteria Escherichia coli and the recombinant protein was purified. The M.

Molecular identification of nine commercial flaffish species by polymerase chain reaction-restriction fragment length polymorphism analysis of a segment of the cytochrome b region.

Commercial refrigerated or frozen flatfish fillets are sometimes mislabeled, and identification of these mislabeled products is necessary to prevent fraudulent substitution. Identification of nine commercial flatfish species (order Pleuronectiformes), Hippoglossus hippoglossus (halibut), Lepidorhombus boscii (four-spotted scaldfish), Lepidorhombus whiffiagonis (megrin), Platichthys flesus (flounder), Pleuronectes platessa (European plaice), Reinhardtius hippoglossoides (Greenland halibut), Scophthalmus maximus (turbot), Scophthalmus rhombus (brill), and Solea vulgaris (=Solea solea) (sole), was carried out on the basis of the amplification of a 486-bp segment of the mitochondrial genome (tRNA(Glu)/cytochrome b) by using the polymerase chain reaction (PCR) and universal primers. Sequences of PCR-amplified DNA from the flatfish species were used to select eight restriction enzymes (REs).