Glass Perchlet feeding on
floating debris in shallow, near-shore marine habitat at Telok Paku,
Bako National Park, Sarawak, Borneo.
View of sandy bay habitat at Telok Paku, Bako National Park, Sarawak, Borneo.
Kop's Glass Perchlet in mangrove habitat at Pulau Semakau, Singapore.
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Globally there are around
20 or so species of Glass Perchlet (or Glassfish) within the genus
Ambassis, part of the family Ambassidae, around half of which occur in
the waters of Southeast Asia.
These are small, translucent or semi-transparent fishes which occur in
large shoals in a wide range of aquatic habitats including freshwater,
brackish mangrove-lined inlets, coastal bays and offshore reefs.
Most species occurring in Southeast Asia reach a maximum size of less than
10 cm, apart from A. gymnocephalus which reaches up to 16 cm.
Glass Perchlets are omnivorous, feeding mainly on insects, crustaceans and
other invertebrates : their mouths are turned upwards to facilitate feeding
on floating prey. Their bodies are laterally compressed, and their eyes
generally large.
The upper specimen shown here, which has not been identified to species level, was
found in a shallow, sandy bay at Telok Paku, part of the Bako National Park,
Sarawak, Borneo. The lower specimen is Kop's Glass Perchlet Ambassis
kopsii from Singapore.
Order : Perciformes
Family : AMBASSIDAE
Species : Ambassis sp.
Maximum Length : Most Ambassis species are less than 10 cm in
total length.
References :
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