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Phylum Chordata > Subphylum Vertebrate > fishes > Family Pomacentridae
Threespot damselfish
Pomacentrus tripunctatus

Family Pomacentridae
updated Oct 2016
Where seen? This dark fish with dark spots is sometimes seen on some of our shores among coral rubble and near living reefs. Elsewhere, it is found in shallow bays and silty coastal reefs and other 'dead' areas, up to 3m deep. Usually alone, in holes of small rocks on sandy bottoms with coral rubble.

Features: To about 20cm, those seen about 12-15cm long. Adults dull greenish black or dark grey with a blue-edged black spot on the upper tail base. Juveniles (as tiny as 2-3cm) may have an additional blue-edged black spot on the soft parts of the dorsal fin and blue lines on the head and back (although these little fishes may also be the juveniles of Pomacentrus cuneatus which is also commonly encountered in deeper waters).

What does it eat? It eats mainly algae growing on the sea bottom.

Adult.
Tuas, Apr 05

Juvenile.
Pulau Jong, Jul 07

Juvenile.
Sisters Island, May 07

Juvenile.
Sisters Island, May 07

Threespot damselfishes on Singapore shores

Photos of Threespot damselfishes for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map


Pulau Sekudu, May 12
Photo shared by Marcus Ng on flickr.
   


Tanah Merah, Sep 09
Photo shared by James Koh on his blog.

Tanah Merah, Aug 09
Photo shared by James Koh on his blog.


Terumbu Raya, May 10
Photo shared by Loh Kok Sheng on his flickr.

Pulau Semakau, Aug 14
Photo shared by Marcus Ng on flickr.


Terumbu Pempang Tengah, May 11
Photo shared by Sam Yeo on facebook

Pulau Biola, May 10
Photo shared by Marcus Ng on flickr.
 

Acknowledgements
Identification of blue juveniles with grateful thanks to Jeffrey Low of NParks Biodiversity Centre.

Links

References

  • Allen, Gerry, 2000. Marine Fishes of South-East Asia: A Field Guide for Anglers and Divers. Periplus Editions. 292 pp.
  • Lieske, Ewald and Robert Myers. 2001. Coral Reef Fishes of the World Periplus Editions. 400pp.
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