Unexpected deep‐sea fish species on the Porcupine Bank (NE Atlantic): Biogeographical implications

Four specimens corresponding to three rare deep‐water fish species were caught on the Porcupine Bank (Northeast Atlantic) in September 2019. These catches include the new northernmost records of Azores rockling Gaidropsarus granti and deep‐water dab Poecilopsetta beanii in the Atlantic Ocean and the...

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Bibliographic Details
Published in:Journal of fish biology 2020-09, Vol.97 (3), p.908-913
Main Authors: Bañón, Rafael, Carlos, Alejandro, Ruiz‐Pico, Susana, Baldó, Francisco
Format: Article
Language:English
Subjects:
Animal Distribution
Animal Migration
Animals
Atlantic Ocean
Azores
Biogeography
Deoxyribonucleic acid
distribution
DNA
DNA barcoding
DNA Barcoding, Taxonomic
Fish
Flatfishes - genetics
Flatfishes - physiology
Gadiformes - genetics
Gadiformes - physiology
Gene sequencing
Larvae
NE Atlantic
New records
northernmost record
Poecilopsetta beanii
Rare species
transatlantic drift
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Summary:Four specimens corresponding to three rare deep‐water fish species were caught on the Porcupine Bank (Northeast Atlantic) in September 2019. These catches include the new northernmost records of Azores rockling Gaidropsarus granti and deep‐water dab Poecilopsetta beanii in the Atlantic Ocean and the second record of the latter species in its eastern zone. Three of the specimens were retained and their molecular identification also allowed the Cataetyx alleni DNA barcode to be obtained for the first time. The appearance of P. beanii, a West Atlantic species, in its eastern zone is discussed in relation to a possible phenomenon of transoceanic drift in the larval stage.
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.14418