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Fishes of the hadal zone including new species, in situ observations and depth records of Liparidae

Lookup NU author(s): Dr Thomas Linley, Dr Alan Jamieson

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

Abstract

Observations and records for fish exceeding 6000m deep are few and often spurious. Recent develop- ments in accessing and sampling the hadal zone 6000–11,000 m) have led to an acceleration in new findings in the deep subduction trenches, particularly in the Pacific Ocean. This study describes thediscovery of two new species of snailfish (Liparidae) from the Mariana Trench; the ‘Mariana snailfish’ (6198–8076m) and the ‘Ethereal snailfish’ (7939–8145 m). These new findings represent respectively the deepest known specimen caught with corroborating depth data, and the deepest fish seen alive. Further specimens and observations of the Kermadec Trench snailfish, Notoliparis kermadecensis, are also presented, as well as the first hadal records of Synaphobranchidae and Zoarcidae (6068 and 6145m respectively) and a depth extension for the Macrouridae (maximum depth now 7012 m). Details of these new snailfish specimens caught by baited trap and behaviour observations filmed by baited cameras are presented. An updated assessment of fishes from hadal depths is also reported.

Publication metadata

Author(s): Linley TD, Gerringer ME, Yancey PH, Drazen JC, Weinstock CL, Jamieson AJ

Publication type: Article

Publication status: Published

Journal: Deep Sea Research Part I: Oceanographic Research Papers

Year: 2016

Volume: 114

Pages: 99-110

Print publication date: 01/08/2016

Online publication date: 07/05/2016

Acceptance date: 06/05/2016

Date deposited: 19/08/2016

ISSN (print): 0967-0637

ISSN (electronic): 1879-0119

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.dsr.2016.05.003

DOI: 10.1016/j.dsr.2016.05.003

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