Skinny
sea fans
Astrogorgia
sp.*
Family Plexauridae
updated
Dec 2019
Where
seen? This sea fan with long, skinny branches is sometimes
seen in numbers on our Northern shores. On coral rubble, rocks, stones and artificial hard surfaces.
Features: 10-20cm long. Generally
with long branches without much side branching. In some colonies,
the long branches are neatly and evenly spaced along the central stem
on one plane so the whole colony looks like the veins of a leaf. But
in some large colonies, the long branches are more tangled. Stems long,
skinny and somewhat flattened often with a ridge 'mid-rib' along the
centre of the stem. Colours seen include red, maroon, orange and yellow.
The white polyps are relatively large (0.5cm) compared to the stem
and emerge on opposite edges of the flattened stems.
Those seen on our shores often have all kinds of small animals clinging
onto to them including tiny
colourful brittle stars, transparent shrimps and ovulid
snails. |
East Coast, Jun 06 |
Changi, Jul 09 |
Chek Jawa, Jul 05 |
*Species
are difficult to positively identify without close examination.
On this website, they are grouped by external
features for convenience of display.
Skinny
sea fans on Singapore Shores |
Other sightings on Singapore shores |
Tanah Merah, Dec 09
Photo shared by Loh Kok Sheng on his
blog. |
Tanah Merah Ferry Terminal, Jun 15
Photo shared by Loh Kok Sheng on facebook. |
|
East Coast Park, Jul 09
Photo shared by Loh Kok Sheng on his
blog. |
East Coast PCN, Apr 17
Photo shared by Loh Kok Sheng on facebook. |
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