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

The sequencing reactions were migrated in a SeqStudio Genetic Analizer (Applied Biosystems, Foster City, CA, USA) at the Centro de Apoyo Científico y Tecnológico a la Investigación of the Universidade de Vigo (CACTI) facilities. The quality of sequences was verified, and both direct and reverse runs were assembled into a consensus sequence. The COI sequence, along with other specimen data, has been deposited in the BOLD database (www.boldsystems.org) within the project titled “Fishes of the Porcupine Bank” (code PORCU) under process ID PORCU038-24. Additionally, the sequence is available in GenBank (https://www.ncbi.nlm.nih.gov/genbank/) under accession number PP313084. Sequences of the 16S and RAG1 genes have also been deposited in GenBank under accession numbers PP256263 and PP259110, respectively.

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. Vizconde de Eza using a bottom trawl at a depth of 1349 m. Morphological description and illustrations, including a radiograph, are provided. In addition, three new sequences corresponding to three different genes, cytochrome c oxidase subunit I (COI)-DNA barcoding, 16S ribosomal RNA (16S), and recombination activating protein 1 (RAG1), have been added to the molecular repositories, representing the first sequences for the species.

European Maritime, Fisheries, and Aquaculture Fund (grant/award number: PORCUDEM-20233FMP001).

Peer reviewed