First findings of decapod crustacea in the hadal zone

A J Jamieson, T Fujii, M Solan, A K Matsumoto, P M Bagley, I G Priede

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Since the first major hadal sampling efforts in the 1950s, crustaceans of the order Decapoda have been thought absent from the hadal zone (6000-11,000m) with no representatives documented >5700m. A baited video lander deployed at 6007, 6890 and 7966 m in the Kermadec Trench, 8798 and 9729 m in the Tonga Trench (SW Pacific), 6945 and 7703 m in the Japan Trench and 5469 m in the Marianas region (NW Pacific) has now revealed a conspicuous presence of the Benthesicymid prawn Benthesicymus crenatus Bate 1881. Decapods were observed at all sites except at 7966m in the Kermadec Trench and the two Tonga Trench sites, making the deepest finding 7703 m in the Japan Trench, 2000 m deeper than previously thought. These natantian decapods were readily attracted to fish bait and, rather than feeding on the bait itself, were observed preying upon smaller scavenging amphipods. These are the first observations of predation in the hadal zone. In less than 10 h of bottom time, 12 observations of 10 individuals were documented at 6007 m and 5 observations of 3 individuals were documented at 6890 m in the Kermadec Trench. In the Japan Trench at 6945 m 29 observations of 20 individuals were documented whilst only one individual was seen at 7703 m. Two individuals were observed in the abyssal Marianas Region (5575 m). Also, in the Kermadec Trench, individual caridean prawns (Acanthephyra spp.) were observed at 6007 and 6890m, proving categorically that the crustacean order of Decapoda is represented in the hadal zone. (C) 2008 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)641-647
Number of pages7
JournalDeep Sea Research Part I: Oceanographic Research Papers
Volume56
Issue number4
Early online date17 Nov 2008
DOIs
Publication statusPublished - Apr 2009

Keywords

  • decapoda
  • crustacea
  • Benthesicymus crenatus
  • hadalzone
  • trenches
  • Pacific Ocean
  • Northeast Atlantic-Ocean
  • sea demersal fishes
  • deep-sea
  • scavenging amphipods
  • Arabian Sea
  • Pacific
  • consumption
  • community
  • behaviour
  • trench
  • hadal zone

Cite this

Jamieson, A. J., Fujii, T., Solan, M., Matsumoto, A. K., Bagley, P. M., & Priede, I. G. (2009). First findings of decapod crustacea in the hadal zone. Deep Sea Research Part I: Oceanographic Research Papers, 56(4), 641-647. https://doi.org/10.1016/j.dsr.2008.11.003

First findings of decapod crustacea in the hadal zone. / Jamieson, A J; Fujii, T; Solan, M; Matsumoto, A K; Bagley, P M; Priede, I G.

In: Deep Sea Research Part I: Oceanographic Research Papers, Vol. 56, No. 4, 04.2009, p. 641-647.

Research output: Contribution to journalArticle

Jamieson, AJ, Fujii, T, Solan, M, Matsumoto, AK, Bagley, PM & Priede, IG 2009, 'First findings of decapod crustacea in the hadal zone', Deep Sea Research Part I: Oceanographic Research Papers, vol. 56, no. 4, pp. 641-647. https://doi.org/10.1016/j.dsr.2008.11.003
Jamieson, A J ; Fujii, T ; Solan, M ; Matsumoto, A K ; Bagley, P M ; Priede, I G. / First findings of decapod crustacea in the hadal zone. In: Deep Sea Research Part I: Oceanographic Research Papers. 2009 ; Vol. 56, No. 4. pp. 641-647.
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AU - Priede, I G

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AB - Since the first major hadal sampling efforts in the 1950s, crustaceans of the order Decapoda have been thought absent from the hadal zone (6000-11,000m) with no representatives documented >5700m. A baited video lander deployed at 6007, 6890 and 7966 m in the Kermadec Trench, 8798 and 9729 m in the Tonga Trench (SW Pacific), 6945 and 7703 m in the Japan Trench and 5469 m in the Marianas region (NW Pacific) has now revealed a conspicuous presence of the Benthesicymid prawn Benthesicymus crenatus Bate 1881. Decapods were observed at all sites except at 7966m in the Kermadec Trench and the two Tonga Trench sites, making the deepest finding 7703 m in the Japan Trench, 2000 m deeper than previously thought. These natantian decapods were readily attracted to fish bait and, rather than feeding on the bait itself, were observed preying upon smaller scavenging amphipods. These are the first observations of predation in the hadal zone. In less than 10 h of bottom time, 12 observations of 10 individuals were documented at 6007 m and 5 observations of 3 individuals were documented at 6890 m in the Kermadec Trench. In the Japan Trench at 6945 m 29 observations of 20 individuals were documented whilst only one individual was seen at 7703 m. Two individuals were observed in the abyssal Marianas Region (5575 m). Also, in the Kermadec Trench, individual caridean prawns (Acanthephyra spp.) were observed at 6007 and 6890m, proving categorically that the crustacean order of Decapoda is represented in the hadal zone. (C) 2008 Elsevier Ltd. All rights reserved.

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KW - community

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JO - Deep Sea Research Part I: Oceanographic Research Papers

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