DNA Barcoding of the Genus Magnisudis (Aulopiformes: Paralepididae) with a Coastal Record and Biological Features of Magnisudis atlantica

One specimen of the duckbill barracudina of 402 mm TL was caught in a shallow coastal area in Galician waters, northwest of Spain. Morphometric and meristic parameters along with DNA barcoding, based on cytochrome c oxidase subunit I, were used to confirm the specimen identity. Neighbor-joining anal...

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Bibliographic Details
Published in:Biology (Basel, Switzerland) Switzerland), 2023-02, Vol.12 (3), p.349
Main Authors: Bañón, Rafael, Almón, Bruno, Rábade, Sonia, Ríos, María Berta, de Carlos, Alejandro
Format: Article
Language:English
Subjects:
barracudina
coastal waters
Coastal zone
Cytochrome-c oxidase
DNA barcoding
feed
Fish
Gonads
Growth stage
Hermaphroditism
Magnisudis
Magnisudis atlantica
Morphology
Nucleotide sequence
Oocytes
Paralepididae
paralepidids
reproduction
Taxonomy
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Summary:One specimen of the duckbill barracudina of 402 mm TL was caught in a shallow coastal area in Galician waters, northwest of Spain. Morphometric and meristic parameters along with DNA barcoding, based on cytochrome c oxidase subunit I, were used to confirm the specimen identity. Neighbor-joining analysis of nominal sequences of the genus obtained from the Barcode of Life Data System indicates the presence of six representative groupings of potential species, in contrast to the three that are currently recognized as valid. The stomach contents showed remains of digested crustaceans, tentatively identified as Euphausiids. Histological examination of the gonads revealed the specimen to be an immature female with oocytes at the primary growth stage, indicative of a lack of hermaphroditism. The results add new biological and taxonomic data that contribute to improved understanding of these poorly characterized, mainly deep-water species, demonstrating, once again, the effectiveness of DNA barcoding for identifying deep-sea fishes and characterizing their genetic differences.
ISSN:2079-7737
2079-7737
DOI:10.3390/biology12030349