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Deep-sea echinoderm oxygen consumption rates and an interclass comparison of metabolic rates in Asteroidea, Crinoidea, Echinoidea, Holothuroidea and Ophiuroidea

Hughes, Sarah Jane Murty, Ruhl, Henry A., Hawkins, Lawrence E., Hauton, Chris, Boorman, Ben and Billett, David S.M. (2011) Deep-sea echinoderm oxygen consumption rates and an interclass comparison of metabolic rates in Asteroidea, Crinoidea, Echinoidea, Holothuroidea and Ophiuroidea The Journal of Experimental Biology, 214, pp. 2512-2521. (doi:10.1242/jeb.055954).

Record type: Article

Abstract

Echinoderms are important components of deep-sea communities because their abundance and their activities contribute to carbon cycling. Estimating echinoderm contribution to food webs and carbon cycling is important to our understanding of the functioning of the deep-sea environment and how this may alter in the future as climatic changes take place. Metabolic rate data from deep-sea echinoderm species are however scarce. To obtain such data from abyssal echinoderms a novel in situ respirometer system, the Benthic Incubation Chamber System (BICS), was deployed by ROV at depths ranging from 2200 to 3600 m. Oxygen consumption rates were obtained in situ from four species of abyssal echinoderm (Ophiuroidea and Holothuroidea). The design and operation of two versions of BICS are presented here, together with the in situ respirometry measurements. These results were then incorporated into a larger echinoderm metabolic rate data set, which incorporated the metabolic rates of 84 echinoderm species from all five classes (Asteroidea, Crinoidea, Echinoidea, Holothuroidea and Ophiuroidea). The allometric scaling relationships between metabolic rate and body mass derived in this study for each echinoderm class were found to vary. Analysis of the data set indicated no change in echinoderm metabolic rate with depth (by class or phylum). The allometric scaling relationships presented here provide updated information for weight dependant deep-sea echinoderm metabolic rates for use in ecosystem models, which will contribute to the study of both shallow water and deep-sea ecosystem functioning and biogeochemistry.

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More information

Published date: 2011
Additional Information: Supplementary material available online at http://jeb.biologists.org/cgi/content/full/214/15/2512/DC1
Keywords: deep sea, ROV, echinoderm, oxygen consumption, metabolism, respiration
Organisations: Ocean and Earth Science, Marine Biogeochemistry, National Oceanography Centre,Southampton

Identifiers

Local EPrints ID: 193485
URI: http://eprints.soton.ac.uk/id/eprint/193485
PURE UUID: f21669a2-e892-4918-b240-129316f467d6
ORCID for Lawrence E. Hawkins: ORCID iD orcid.org/0000-0002-9236-2396
ORCID for Chris Hauton: ORCID iD orcid.org/0000-0002-2313-4226

Catalogue record

Date deposited: 18 Jul 2011 12:23
Last modified: 18 Jul 2017 11:28

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Contributors

Author: Sarah Jane Murty Hughes
Author: Henry A. Ruhl
Author: Chris Hauton ORCID iD
Author: Ben Boorman
Author: David S.M. Billett

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