> Subphylum Vertebrate > fishes
|Asiatic glass perchlets
updated Sep 2020
learn only 3 things about them ...
| The fish is almost transparent, like glass. Look carefully to find it.
Large eyes and upturned mouths.
stranded in pools at low tide. Watch your step!
of these silvery fishes are frequently encountered in pools at low
tide near seagrasses on many of our shores. Elsewhere, they are found in mangroves,
estuaries and freshwater. They form groups during the day among mangrove
roots and submerged plants. They disperse at night to feed.
What are perchlets? Perchlets belong to Family Ambassidae (previously Family Chandidae). According to FishBase:
The family has 8 genera and 41 species. They are found in Asia and
Oceania and the Indo-west Pacific oceans.
Features: To about 10cm. Body nearly transparent covered with thin
scales. Thus it is sometimes called the Glassfish. Mouth is upturned
with a projecting jaw and large eyes. A single dorsal fin, deeply
notched before the last spine. These fishes are often seen in small
Kops' glass perchlet (Ambassis kopsii) are commonly seen often in a large group of many individuals. Those seen about 5-8cm, grows to about 10cm. Body silvery
almost transparent. A distinctive blackish mark on the
tip of the dorsal fin, which is deeply notched. Else seen in coastal and brackish waters, sometimes upstream in freshwater. It eats invertebrates. May be marketed fresh or dried and salted.
Sometimes confused with Mojarras (Family Gerreidae) which have a single dorsal
fin that is not deeply notched. More on how to tell apart small silvery fishes.
Mouth upturned, large eyes.
Pulau Sekudu, Aug 04
Kops' glass perchelet (Ambassis kopsii)
Dorsal fin deeply notched, with blackish tip.
Kusu Island, Apr 05
|Often seen in large schools. Sungei Buloh Wetland Reserve, Nov 17
|What do they eat? They
eat tiny crustaceans such as ostracods and copepods, insects and sometimes
Human uses: Perchlets
are eaten in some places and sold fresh or dried and salted. Some are used as an ingredient in making
fish sauce. They are also used
|Glass perchlets on Singapore shores
|Other sightings on Singapore shores
Pulau Semakau South, Feb 16
Photo shared by Heng Pei Yan on facebook.
Berlayar Creek, Oct 17
Photo shared by Marcus Ng on facebook.
Ambassidae recorded for Singapore
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
*Lim, Kelvin K. P. & Jeffrey K. Y. Low, 1998. A Guide to the Common
Marine Fishes of Singapore.
+Other additions (Singapore Biodiversity Records, etc)
Ambassidae (previously Chandidae) some species are freshwater
Parambassis punctulatus=**Parambassis siamensis (Non native freshwater)