Published October 30, 2025 | Version CC-BY-NC-ND 4.0
Journal article Open

Piscean Diversity of Simen River, Dhemaji, Assam, North East India

  • 1. Assistant Professor, Department of Zoology, Silapathar Science College, Amritpur, Silapathar Dhemaji (Assam), India.

Contributors

Contact person:

  • 1. PGT, North East Vision Academy, Barpeta (Assam), India.
  • 2. Assistant Professor, Department of Zoology, Silapathar College, Silapatha, Dhemaji (Assam), India.
  • 3. Assistant Professor, Department of Zoology, Silapathar Science College, Amritpur, Silapathar Dhemaji (Assam), India.

Description

Abstract: The availability of ichthyofaunal diversity in a riverine ecosystem is a good indicator of river health. A good ichthyofaunal diversity of a riverine ecosystem represents a balanced ecosystem of the river. Taking this ecological conception into consideration, the ichthyofaunal diversity of the Simen River is studied during the present investigation. The Simen River in the district of Dhemaji, Assam, is a Himalayan tributary of the Brahmaputra River system, which flows through Arunachal Pradesh and Assam. Samples were collected fortnightly early in the morning from September 2022 to August 2023. Different types of nets and gears were found to be used by the fishermen. Collected fish were preserved in 5% formalin on the spot and brought to the laboratory for identification. The collected fish were identified up to the species level. A total of 43 species of fish belonging to 33 genera and 21 families were identified from the river during the study period. The family Cyprinidae was found to be the most dominant among the fish families.

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Additional details

Identifiers

DOI
10.54105/ijz.B2921.05021025
EISSN
2582-9521

Dates

Accepted
2025-10-15
Manuscript received on 07 May 2025 | First Revised Manuscript received on 17 May 2025 | Second Revised Manuscript received on 16 September 2025 | Manuscript Accepted on 15 October 2025 | Manuscript published on 30 October 2025.

References