Exploring Deep-Sea Biodiversity in the Porcupine Bank (NE Atlantic) through Fish Integrative Taxonomy

This study combined morphological and molecular approaches to the species assignment of several rare or poorly known deep-water fishes caught between 549 and 1371 m depth during a Spanish bottom trawl survey in the Porcupine Bank, west of Ireland. The following fish species were identified: Nessorha...

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Bibliographic Details
Published in:Journal of Marine Science and Engineering
Main Authors: Bañón, R. (Rafael), de-Carlos, A. (Alejandro), Farias, C. (Carlos), Vilas-Arrondo, N. (Nair), Baldó, F. (Francisco)
Format: Article in Journal/Newspaper
Language:English
Published: Centro Oceanográfico de Cádiz 2021
Subjects:
NE Atlantic
distribution
taxonomic identification
morphology
DNA barcoding
synonymy
fish
biodiversity
deep water
taxonomy
Porcupine Bank
Antarc*
antarcticus
Online Access:http://hdl.handle.net/10508/12297
https://doi.org/10.3390/jmse9101075
Description
Summary:This study combined morphological and molecular approaches to the species assignment of several rare or poorly known deep-water fishes caught between 549 and 1371 m depth during a Spanish bottom trawl survey in the Porcupine Bank, west of Ireland. The following fish species were identified: Nessorhamphus ingolfianus (Schmidt, 1912), Borostomias antarcticus (Lönnberg 1905), Scopelosaurus lepidus (Krefft and Maul 1955), Bathypterois dubius Vaillant, 1888, Evermannella balbo (Risso, 1820), Antimora rostrata (Günther, 1878), Melanonus zugmayeri Norman, 1930, Lyconus brachycolus Holt and Byrne, 1906; Paraliparis hystrix Merrett, 1983, Neocyttus helgae (Holt and Byrne, 1908); Platyberyx opalescens Zugmayer, 1911; Howella atlantica Post and Quéro, 1991, Lycodes terraenovae Collett, 1896 and Pseudoscopelus altipinnis Parr, 1933. The presence of L. brachycolus, P. opalescens and P. altipinnis is reported for the first time in the Bank. The DNA barcoding results were largely consistent with morphological identification in 10 species but four did not fit the current taxonomy, indicating cases of potential cryptic speciation, misidentification, synonymy or recent diversification. Among them, the results strongly suggest that P. garmani and P. hystrix are conspecific, making P. hystrix a junior synonym of P. garmani. Versión del editor

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