Status of fish diversity in Surha Taal, a natural lake in the floodplains of river Ganga, in Ballia District, Uttar Pradesh, India


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Authors

  • A. K. Pathak ICAR-National Bureau of Fish Genetic Resources
  • U. K. Sarkar ICAR - Central Inland Fisheries Research Institute
  • Rehana Abidi ICAR-National Bureau of Fish Genetic Resources

https://doi.org/10.21077/ijf.2020.67.3.70744-18

Abstract

The study presents the status of fish diversity, abundance and habitat structure of Surha Lake, which is a perennial and natural lake fed by the river Ganga. The study was conducted between 2011 to 2013 covering pre and post-monsoon seasons. In total, 4,852 individual fish specimens were collected representing 66 fish species belonging to 23 families. The species diversity comprised 65 species in pre-monsoon and 60 species in post-monsoon season (p<0.05). The highest species diversity was recorded for the family Cyprinidae (22), followed by Bagridae (7). An assessment of conservation status of 66 fish species as per IUCN Red List 2019 criteria listed 6 species under near threatened (NT), 54 under least concern (LC) and two species under vulnerable (VU) category. The study reports several commercially important species  under near threatened (Chitala chitala, Labeo pangusia, Ompok bimaculatus, Ompok pabda, , Ailia coila and Bagarius bagarius), which makes Surha Taal an important natural lake from fishery management point of view. The study also prioritised different habitat types important for different species. The slow water in the mid-channel areas of the lake were categorised as important habitats for near threatened and vulnerable fish species like C. chitala, B. bagarius and Wallago attu, which can be prioritised for population level management.

Keywords: Conservation status, Fish diversity, Ganga River basin, Surha Taal

Author Biographies

  • A. K. Pathak, ICAR-National Bureau of Fish Genetic Resources
    Agriculture Knowledge Management Unit, Sr Scientist
  • U. K. Sarkar, ICAR - Central Inland Fisheries Research Institute
    Head of Division and Principal Scientist
  • Rehana Abidi, ICAR-National Bureau of Fish Genetic Resources
    Principal Scientist

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Submitted

2017-05-30

Published

2020-09-30

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How to Cite

Pathak, A. K., Sarkar, U. K., & Abidi, R. (2020). Status of fish diversity in Surha Taal, a natural lake in the floodplains of river Ganga, in Ballia District, Uttar Pradesh, India. Indian Journal of Fisheries, 67(3). https://doi.org/10.21077/ijf.2020.67.3.70744-18