Journal Article

Oxygen fluxes of enclosed reef epibiota communities

K. J. Collins, A. C. Jensen and I. P. Smith

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 59, issue suppl, pages S94-S99
Published in print January 2002 | ISSN: 1054-3139
Published online January 2002 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1006/jmsc.2002.1292
Oxygen fluxes of enclosed reef epibiota communities

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Enclosed chamber experiments have a long history in the examination of respiration and the production rates of single species in the laboratory, but also of corals, algae, and soft-bottom communities in the field. We incubated single concrete blocks (20×20×40 cm) from the Poole Bay artificial reef, supporting a mixed algal and faunal community, in a clear acrylic chamber on the seabed under dark and light conditions. Oxygen concentrations were monitored and the epibiota removed for biomass determination of the different taxonomic groups present. For summer experiments (temperature 16–19°C), linear relationships were found between the mass of epibiota (ash-free dry weight) and dark respiration and between the mass of algae and net oxygen production. Average respiration (at 20°C) was 41±3 μmol O2 g AFDW−1 h−1 and average algae grass production was 276±27 μmol O2 g AFDW−1 h−1. The relationship of these instantaneous measures of oxygen flux to longer term reef epibiota production is discussed. Copyright 2002 International Council for the Exploration of the Sea. Published by Elsevier Science Ltd. All rights reserved.

Keywords: artificial reef; carbon flow; community oxygen flux.

Journal Article.  0 words. 

Subjects: Environmental Science ; Marine and Estuarine Biology

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