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Asparagus
flowery soft coral
Nephthea sp.*
Family Nephtheidae
updated Nov 2019
Where
seen? This large purplish flowery soft coral is commonly
seen on our Southern shores. When out of water with the polyps retracted,
the tips of this soft coral looks like asparagus spears. Usually among
living hard corals on the reef flats.
Features: Colony bushy 15-20cm
to 50cm. Colony is branched with thick study 'stems' emerging from
a stout central 'trunk'. The 'stems' may be white, lilac or purple.
Polyps tiny (about 0.5cm) with eight beige or brown branched tentacles.
The polyps appear in clusters only at the tips of the branches, the
rest of the colony smooth. No obvious large spikes among the polyps.
When the polyp tentacles are retracted, the body column forms little
lumps, the entire colony may appear purplish or lilac, and the rounded
lumps give the 'stems' the appearance of asparagus spears. With the
polyps tentacles expanded, the colony appears brown and fluffy. The
animals harbour symbiotic algae (zooxanthellae) and thus can be found
in clearer water.
Sometimes confused with Smooth
flowery soft corals (Litophyton sp.). It may also resemble the Fire anemone which, unlike the soft coral, has white stripes radiating from the centre of the oral disk.
Flowery friends: Sometimes, tiny transparent red
nose shrimps and tiny
colourful brittle stars can be seen on this soft coral. |
Brown when tentacles are expanded,
purple when tentacles are retracted.
Pulau Hantu, Apr 04 |
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Pastel colours suggest a stressed colony.
Terumbu Semakau, May 19
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Expanded tentacles and contracted tentacles.
Pulau Hantu,Mar 07
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Eight brown branched tentacles.
Pulau Semakau, Aug 11
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Tentacles retracted, body column forms lumps.
No spikes among the polyps.
Pulau Hantu, Jan 06
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Sisters Island, Aug 07
Tiny transparent shrimp.
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*ID
awaits confirmation. Species are difficult to positively identify without
close examination.
On this website, they are grouped by external
features for convenience of display.
Asparagus
flowery soft corals on Singapore shores |
Other sightings on Singapore shores |
Lazarus Island, Feb 11
Photo
shared by Russel Low on facebook. |
Pulau Berkas,
May 10 |
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Terumbu Salu, Jan 10
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Terumbu Berkas, Jan 10
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Terumbu Salu, Aug 10
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Pulau Sudong,
Dec 09
Photo shared by Loh Kok Sheng on his
flickr. |
Pulau Pawai,
Dec 09
Photo shared by Loh Kok Sheng on his
flickr. |
Bleaching.
Terumbu Salu, Jun 10 |
Links
References
- Fabricius,
Katharina and Philip Alderslade, 2001. Soft
Corals and Sea Fans.
Australian Institute of Marine Science and the Museum and Art
Gallery of the Northern Territoriy. 264 pp.
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