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The echinoderm fauna of sediment stresses reefs in Singapore,
p. 245-250. In Choat, J.H., D. Barnes, MA. Borowitzka, J.C. Coll, P.J.Davies, P. Flood, B.G. Hatcher, D. Hopley, P.A. Hutchings, D. Kinsey, G.R. Orme, M. Pichon, P.F. Sale, P. Sammarco, C.C. Wallace, C. Wilkinson, E. Wolanski and O. Bellwood (eds.) Proceedings of the 6th International Coral Reef Symposium: Vol. 2: Contributed Papers. Townsville, Australia.
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Ref ID
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577
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Author
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Lim, G.S.Y. and L.M. Chou
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Year
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1988
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Title
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The echinoderm fauna of sediment stresses reefs in Singapore,
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Source
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p. 245-250. In Choat, J.H., D. Barnes, MA. Borowitzka, J.C. Coll, P.J.Davies, P. Flood, B.G. Hatcher, D. Hopley, P.A. Hutchings, D. Kinsey, G.R. Orme, M. Pichon, P.F. Sale, P. Sammarco, C.C. Wallace, C. Wilkinson, E. Wolanski and O. Bellwood (eds.) Proceedings of the 6th International Coral Reef Symposium: Vol. 2: Contributed Papers. Townsville, Australia.
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Keywords
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ICRS6, Stress, Sedimentation, Echinoderms, Survey
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Caption
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Abstract
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Thirty-two species of echinoderms were recorded
from a 7-month survey carried out in sediment-
s t r e s s e d r e e f s of Singapore: 3 s p e c i e s of
asteroids, 14 species of crinoids, 2 species of
echinoids, 6 species of holothurians and 7 species
of ophiuroids. It can be concluded t h a t t h e
echinoderm fauna of Singapore reefs i s generally
poor. e s p e c i a l l y t h e c l a s s e s A s t e r o i d e a ,
Echinoidea, Holothuroidea and Ophiuroidea. The
family Crinoidea, however. was comparable with
that in other reefs in the region.
Fifty-two species of echinoderms were known to
occur i n Singapore r e e f s prior to t h i s study.
Fourteen of these have been confirmed to be present.
in our reefs, b u t 20 species have not been found by
u s . However, 18 species are new records to the
reefs. It is possible that changing conditions in
Singapore r e e f s , especially the increase i n
sedimentation in the surrounding waters, may have
affected the composition of the echinoderm fauna,
allowing only more resilient and adaptable species
t o s u r v i v e . The s u c c e s s of t h e 2 dominant
echinoderms in Singapore reefs, Diadema setosum and
Comaster g r a c i l i s , may be a t t r i b u t e d t h e i r
r e s i l i e n c e and adaptability to high sedimented
waters.
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