Deep-sea anglerfish (Lophiiformes: Ceratioidei) diversity from the western North Atlantic throughout morphology and DNA barcoding

• Published in: Marine Biodiversity
• Main Authors: Bañón, Rafael, Barros-García, David, Sánchez-Ruiloba, Lucía, Río, José Luis del, González Carrión, Francisco, Carlos, Alejandro de
• Other Authors: European Commission, Xunta de Galicia
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer 2023
• Subjects: COI; Biogeography; Distribution; Mitochondrial DNA; Species identification; Barros; North Atlantic
• Online Access: http://hdl.handle.net/10261/306871; https://doi.org/10.1007/s12526-022-01330-z

13 pages, 2 tables, 11 figures Fifteen specimens representing nine species of ceratioid fishes (Lophiiformes: Ceratioidei) were caught in Flemish Cap and Grand Banks of the western North Atlantic: Ceratias holboelli Krøyer, 1845 (Ceratiidae), Melanocetus murrayi Günther, 1887 (Melanocetidae), Leptacanthichthys gracilispinis (Regan, 1925), Dolopichthys karsteni Leipertz & Pietsch, 1987, Dolopichthys pullatus Regan & Trewavas, 1932, Oneirodes eschrichtii Lütken, 1871, Oneirodes macrosteus Pietsch 1974 and Oneirodes carlsbergi (Regan & Trewavas, 1932) (Oneirodidae), and Linophryne cf. brevibarbata Beebe, 1932 (Linophrynidae). Identification was carried out by means of integrative taxonomy, combining the examination of morphological and molecular characters (DNA barcoding). The analysis showed two morphological types of D. pullatus distinguishable by the shape and morphology of the esca and the number and size of the teeth. The occurrence of Oneirodes carlsbergi represents the northernmost record in the western Atlantic. As results of the molecular analysis, 15 new ceratioid sequences were added to molecular repositories, two of them, O. carlsbergi and Linophryne cf. brevibarbata for the first time. The comparison of some nucleotide sequences shows new relationships between the genera Bertella and Dolopichthys, and also makes it possible to correct some of the erroneous assignments made in the databases. The combination of classical and molecular taxonomy has been useful for the delimitation and characterisation of these ceratioid species, contributing to a better understanding of their distribution and inter- and intraspecific variability The survey research has been funded by the European Union through the European Maritime and Fisheries Fund (EMFF) within the National Program of collection, management and use of data in the fisheries sector and support for scientific advice regarding the Common Fisheries Policy. David Barros-García was supported by national funds by FCT -Foundation for Science and ...