Giant Featherback – Freshwater Fish in Thailand

Common name: Giant Featherback, Indonesian Featherback, Black Featherback. Species: Chitala lopis. Thai Name: Pla Satu.

 

The Giant Featherback is a member of the Notopteridae species (meaning “back fin”). Featherback or knifefish are a family of bony-tongues (Osteoglossiformes). The bony-tongues are a primitive but highly successful family of fishes which have been on earth for 200 million years or more.

 

Their shape gives them their common name Knifefish. Chitala lopis or the Giant Featherback are a fish of the genus Chitala found in Southeast Asia. With the denotation of “knifefish” the Notopteridae should not be confused with Gymnotiforms, the electric knifefish.  Although their manner of swimming is similar, the two groups are not closely related. The name is from Greek noton meaning “back” and pteron meaning “fin”.

 

giant featherbackGiant Featherback

Have a slender, elongated, bodies, which giving them a knife-like appearance, the body color is silver to bronze body with a dark or brown back, long brown caudal fin and a silvery white belly. The caudal fin is small and fused with the anal fin, which runs most of the length of the body. Where present, the dorsal fin is small and narrow; giving rise to the common name of “Featherback”. The fish swims by holding its body rigid and rippling the anal fin to propel itself forward or backwards.

 

The Notopterids species

Have specialized swim bladders, its organ extends throughout the body and even into the fins in some cases; although the swim bladder are not highly vascularised. It can absorb oxygen from air and also functions to produce sound; by squeezing air through a narrow passage into the pharynx. Some species prepare nests and guard the eggs until they hatch. Is hiding among submerged roots and rocks in the calm waters of rivers and lakes! Giant Featherback can be caught when fishing with live bait, small fish, shrimp, but also lure fishing with small minnows, spinners, spoons. It can be up to about 25 kg, and 1.5 meters long, the world record is 9.8 kg (13lb)

 

Source: WikipediaFishbase

 

 

 

 

 

 

 

 

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