Macrobenthos communities on reefs of the An Thoi archipelago of the South China Sea

Macrobenthos communities on reefs of the An Thoi archipelago of the South China Sea Macrobenthos communities were studied on fringing reefs of the An Thoi Islands using scuba-diving techniques. The islands are located in the turbid and highly eutrophic waters of the eastern Gulf of Siam. We studied species composition and population densities and biomasses in common species of algae, coelenterates, mollusks, and echinoderms and also the degree of substrate coverage by macrophytes and corals. A pronounced vertical zonation is revealed in the spatial succession of different macrobenthos communities. The domination of massive porites in almost all reefs of the Gulf of Siam is due to their capability to survive under conditions that are stressful for many corals. They predominate over other scleractinians in terms of the productivity of organic matter, degree of substrate coverage, and species diversity. They also constitute the reef skeleton and play a significant role in the expansion of the reef area in the muddy bottoms of the Gulf of Siam. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Macrobenthos communities on reefs of the An Thoi archipelago of the South China Sea

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2000 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology; Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1007/BF02759489
Publisher site
See Article on Publisher Site

Abstract

Macrobenthos communities were studied on fringing reefs of the An Thoi Islands using scuba-diving techniques. The islands are located in the turbid and highly eutrophic waters of the eastern Gulf of Siam. We studied species composition and population densities and biomasses in common species of algae, coelenterates, mollusks, and echinoderms and also the degree of substrate coverage by macrophytes and corals. A pronounced vertical zonation is revealed in the spatial succession of different macrobenthos communities. The domination of massive porites in almost all reefs of the Gulf of Siam is due to their capability to survive under conditions that are stressful for many corals. They predominate over other scleractinians in terms of the productivity of organic matter, degree of substrate coverage, and species diversity. They also constitute the reef skeleton and play a significant role in the expansion of the reef area in the muddy bottoms of the Gulf of Siam.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Nov 18, 2007

References

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