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Article History

Received: 17 July 2018

Accepted: 25 February 2019

First Online: 6 March 2019

Authors’ information

: L.D. and N.P. are PhD students under a FRIA fellowship; T.T. is under Researcher fellowship from Okinawa Churashima Foundation Research Center; K.S. is Deputy Director General of the Okinawa Churaumi Aquarium; and J.M. is Research Associate to FRS-FNRS. This paper is a contribution to the Biodiversity Research Center (BDIV) and the Center Interuniversitaire de Biologie Marine (CIBIM).

: <i>Etmopterus spinax</i> were collected in Norway under the “experimental fish care permit” number 12/14048. <i>Etmopterus molleri</i> and <i>splendidus</i> were collected and handled according to Churaumi aquarium husbandry and veterinary rules for fish experimentations. All sharks were euthanized by a knock on the chondrocranium followed by an incision at the level of the spinal cord, following the local rules for experimental fish care and the European regulation for research animal handling. These species are not in the CITES list.

: Not applicable.

: The authors declare that they have no competing interests.

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