A review on the threatened species of snow trout Schizothorax richardsonii Gray, 1832 (Cypriniformes: Cyprinidae): From the climate change and conservation perspectives


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A review of threatened fish snow trout

Authors

  • Jay Prakash Bhatt Faculty of Science, Sri Sri University, Cuttack
  • Manish Department of Environmental Studies, Dr. Bhim Rao Ambedkar College, University of Delhi, Delhi–110094

https://doi.org/10.21077/ijf.2023.70.2.131861-20

Keywords:

Himalaya, Snow trout, Vulnerable, Threats, Climate change, Conservation

Abstract

Snow trout (Schizothorax richardsonii Gray, 1832) occupies the Himalayan domain from the foothills to 3000 m and inhabits all types of water bodies, like rivers, rivulets, lakes, and reservoirs. It is a rheophilic fish species that can thrive in a wide range of ecological and climatic conditions. Globally snow trout is now a 'threatened' species. Invasion of its natural habitats by exotic trouts, river valley hydropower projects as well as destructive fishing in the Himalayan region have long been attributed to the vulnerability of this species. The intrinsic characteristics of snow trout also make it a weak competitor in the Himalayan rivers. Climate change coupling with above mentioned threats poses a new challenge for Himalayan fish, especially snow trout, as it is confined to the Himalaya. Given these threats, an intense drive for snow trout conservation is urgently required. This contribution is an attempt to find out solution to this fact. In line with the opinions of ecologists and conservationists, we suggest a few measures like setting up free-flowing and undammed rivers as 'fish conservation zones', environmental flow to downstream areas of existing dams, prohibition of stocking of exotic fish species in natural habitats and use of hatcheries for stocking and restocking of snow trout in the rivers for the conservation of the species.

Keywords: Climate change, Conservation, Himalaya, Hatcheries, Snow trout, Threats, Vulnerable

Author Biography

  • Jay Prakash Bhatt, Faculty of Science, Sri Sri University, Cuttack
    Professor, Environmental Science, Faculty of Science, Sri Sri Unversity, Cuttack, Odisha

References

Prof. P. Nautiyal

Department of Zoology and Biotechnology, Hemwati Nandan Bahuguna Garhwal University, Srinagar, Uttarakhand, India

e-mail: lotic.biodiversity@gmail.com

Dr. N.K. agarwal

Professor, Department of Zoology,

HNB Garhwal Central University, SRT Campus Badshahithaul

Tehri Garhwal-249 199, Uttarakhand, INDIA

E-mail: agarwalnareshk3@rediffmail.com

Dr. P. R. Singh

Associate Professor,

Gopal Narayan Singh University, Sasaram Bihar -821305

E-mail: drprsingh@rediffmail.com

Downloads

Submitted

2022-12-31

Published

2023-06-30

Issue

Section

Review

How to Cite

Bhatt, J. P., & Manish, K. (2023). A review on the threatened species of snow trout Schizothorax richardsonii Gray, 1832 (Cypriniformes: Cyprinidae): From the climate change and conservation perspectives: A review of threatened fish snow trout. Indian Journal of Fisheries, 70(2). https://doi.org/10.21077/ijf.2023.70.2.131861-20