Silvery blue
sponge
Lamellodysidea herbacea*
Family Dysideidae
updated
Oct 2016
Where
seen? This pale blue prickly sponge is commonly seen on our Southern shores,
growing over coral rubble.
Features: Small, covering an area of 10-15cm. The sponge
can take various forms; flat spatula-like fingers, lettuce-like 'leaves',
spindly branches, short thicker lobes, all emerging from an encrusting
base. Younger ones may look like cabbages with upright lobes arranged
in a maze-like pattern. Surface texture prickly. A few small holes
at the top edges. Colours from a pale greyish blue to greenish due
to the cyanobacteria that inhabit the sponge. Cyanobacteria contain a bluish pigment phycocyanin
that is used to capture light for photosynthesis. They also contain
chlorophyll. |
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Cyrene Reef, Apr 08
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Sentosa, Apr 07
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A young sponge may look like a cabbage.
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Kusu Island, Jun 04
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*Species are difficult
to positively identify without close examination.
On this website, they are grouped by external features for convenience of
display.
Silvery blue sponges on Singapore shores |
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St John's Island, Oct 20
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Photo shared by Loh Kok Sheng on facebook. |
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Lazarus Island, Feb 11
Photo shared
by Rene Ong on facebook. |
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Terumbu Pempang Tengah, May 11
Photo shared
by Loh Kok Sheng on flickr. |
Pulau Semakau South, Feb 16
Photo shared by Heng Pei Yan on facebook. |
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Pulau Pawai, Dec 09
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Pulau Senang, Jun 10
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Terumbu Berkas, May 10
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Links
References
- Lim Swee
Cheng, Nicole de Voogd and Tan Koh Siang. 2008. A
Guide to Sponges of Singapore. Singapore Science Centre.
173pp.
- Lim, S.,
P. Ng, L. Tan, & W. Y. Chin, 1994. Rhythm of the Sea: The Life
and Times of Labrador Beach. Division of Biology, School of
Science, Nanyang Technological University & Department of Zoology,
the National University of Singapore. 160 pp.
- Allen, Gerald
R and Roger Steene. 2002. Indo-Pacific
Coral Reef Field Guide.
Tropical Reef Research. 378pp.
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