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Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2020

 
 
     
   
   

 

   
   
 
Waandersii's Hard-lipped Barb
   
   

Fig 1




 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Order : Cypriniformes
Family : CYPRINIDAE
Species : Osteochilus waandersii
Maximum Length : 21 cm

Waandersii's Hard-lipped Barb inhabits clear, freshwater, tropical streams. It is an attractive species with a thick black stripe along the entire length of each flank, and reddish fins - the tail fin in particular can be deep red in colour.

It is benthopelagic, meaning it is free-swimming but tends to remain close to the substrate. It prefers fast-flowing streams and rivers, with gravelly or stony substrate. During periods of high water it is known to explore into adjacent flooded areas. It feeds mainly on plant matter and other organic detritus.

In larger river systems the species is migratory, returning seasonally to its preferred spawning grounds.

The species ranges from Thailand and parts of Indochina (particularly the Mekong River) to Peninsular Malaysia, Sumatra and Borneo. It is absent from Singapore.


Fig 1 : A 15 cm specimen in a large stream at Gunung Belumut, Johor, Peninsular Malaysia.