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A large aggregation of liparids at 7703 meters and a reappraisal of the abundance and diversity of hadal fish

A large aggregation of liparids at 7703 meters and a reappraisal of the abundance and diversity of hadal fish
A large aggregation of liparids at 7703 meters and a reappraisal of the abundance and diversity of hadal fish
Few biological studies have investigated the hadal depths within oceanic trenches that plummet from 6000 meters (m) to the full ocean depth of almost 11,000 m. Here we present the deepest known in situ observations of fish: a hadal snailfish, Pseudoliparis amblystomopsis (Andriashev 1955), from 7703-m deep in the Japan Trench, which was obtained using a baited video lander. The maximum number of fish we observed was unexpectedly higher than trawl catch records of any known hadal fish. We describe changes in fish abundance and associated behaviors over time, including feeding, resting, and swimming. In light of these new observations, we reappraise the occurrence and diversity records of hadal fishes that have been constructed from fragmentary and often misleading information derived from historical explorations and global data sets. This reappraisal suggests that hadal fish diversity may be lower—although some hadal fish species may attain much larger populations—than previously thought.
0006-3568
506-515
Fujii, Toyonobu
9c7b6be9-b63e-4da7-8296-88736248edcd
Jamieson, Alan J.
ab7c9067-fe1d-47f9-921f-c57108b6f23c
Solan, Martin
c28b294a-1db6-4677-8eab-bd8d6221fecf
Bagley, Philip M.
c4ef9bbf-69ea-46dc-9d64-d8b1d0f2751c
Priede, Imants G.
2e513dae-a9dd-45ed-8359-cee7e56e3097
Fujii, Toyonobu
9c7b6be9-b63e-4da7-8296-88736248edcd
Jamieson, Alan J.
ab7c9067-fe1d-47f9-921f-c57108b6f23c
Solan, Martin
c28b294a-1db6-4677-8eab-bd8d6221fecf
Bagley, Philip M.
c4ef9bbf-69ea-46dc-9d64-d8b1d0f2751c
Priede, Imants G.
2e513dae-a9dd-45ed-8359-cee7e56e3097

Fujii, Toyonobu, Jamieson, Alan J., Solan, Martin, Bagley, Philip M. and Priede, Imants G. (2010) A large aggregation of liparids at 7703 meters and a reappraisal of the abundance and diversity of hadal fish. BioScience, 60 (7), 506-515. (doi:10.1525/bio.2010.60.7.6).

Record type: Article

Abstract

Few biological studies have investigated the hadal depths within oceanic trenches that plummet from 6000 meters (m) to the full ocean depth of almost 11,000 m. Here we present the deepest known in situ observations of fish: a hadal snailfish, Pseudoliparis amblystomopsis (Andriashev 1955), from 7703-m deep in the Japan Trench, which was obtained using a baited video lander. The maximum number of fish we observed was unexpectedly higher than trawl catch records of any known hadal fish. We describe changes in fish abundance and associated behaviors over time, including feeding, resting, and swimming. In light of these new observations, we reappraise the occurrence and diversity records of hadal fishes that have been constructed from fragmentary and often misleading information derived from historical explorations and global data sets. This reappraisal suggests that hadal fish diversity may be lower—although some hadal fish species may attain much larger populations—than previously thought.

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Published date: 1 August 2010

Identifiers

Local EPrints ID: 417344
URI: http://eprints.soton.ac.uk/id/eprint/417344
ISSN: 0006-3568
PURE UUID: c481ccb1-f723-40c8-b208-b25d95d583d8
ORCID for Martin Solan: ORCID iD orcid.org/0000-0001-9924-5574

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Date deposited: 30 Jan 2018 17:30
Last modified: 17 Dec 2019 01:43

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