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Pethia dibrugarhensis

  • 10 Jul 2025
  • 2 min read

Source: CIFRI 

Researchers from ICAR-Central Inland Fisheries Research Institute (ICAR-CIFRI) have discovered a new cyprinid fish species, Pethia dibrugarhensis, in the Brahmaputra River 

  • It is named after the Dibrugarh district of Assam, where it was first identified. 

 

Pethia dibrugarhensis 

  • Taxonomy: It belongs to the family Cyprinidae, (which also includes carps and minnows) commonly known as barbs, which are small to medium-sized freshwater fishes native to Asia, Europe, and Africa 
    • Though it lacks typical barbels, the species is classified as a barb due to its defining morphological features. 
  • Habitat: Found in moderately fast-flowing waters with muddy-sandy-stony substrate, these coexist with indigenous freshwater species. 
  • Key Features: Characterized by an incomplete lateral line, black blotch near caudal peduncle, and absence of humeral mark and barbels. 

ICAR-CIFRI 

  • It is a premier research institution under the Indian Council of Agricultural Research (ICAR), established in 1947, dedicated to the sustainable management of inland open water fisheries in India.  
  • It is headquartered at Barrackpore, West Bengal, and plays a key role in promoting fish production, aquatic biodiversity conservation, and livelihood generation 

Brahmaputra River 

  • Brahmaputra originates from the Chemayungdung Glacier near Mansarovar Lake (Tibet), known as Yarlung Tsangpo in Tibet and Siang/Dihang in Arunachal Pradesh.  
    • It flows through Tibet (China), India, and Bangladesh. 
  • Major tributaries include Lohit, Dibang, Subansiri, Jiabharali, Dhansiri, Manas, Torsa, Sankosh, Teesta, Dikhow, Dhansiri and Kopili. 
  • Majuli in Assam is the world’s largest river island. 
Read More: Transforming Fisheries Sector 
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