Fish Biodiversity Trends in Indian Wetlands: 2025 Zoology Thesis Excerpt
Introduction:
Fish diversity offers critical insights into the ecological health of freshwater ecosystems. This excerpt from a 2025 zoology thesis surveys earlier findings across Indian rivers and lakes, showcasing patterns in species richness and the dominance of key orders like Cypriniformes — laying the foundation for understanding regional conservation needs.
Table of Contents
Excerpt Section:
“The earliest research available on the Brahmaputra River and its Ichthyofauna was the work of Hamilton (1822). There are also available few reports on fish in the Brahmaputra River. Singh et al. (1988), Sugunam (1992), Yadava and Chandra (1994). Jhingran (1985) reported the richness of Indian fish species.”
“Wetlands are Transitional zones between completely aquatic and dry terrestrial ecosystems. Water is essential for fish life.
The distribution of fish in an epidemic region is affected by ecological and hydrological parameters like cold, warm, running water, stagnant water, and temperature.”
“Kedhar (2005), has recorded 67 fish species in North Sagar bird Sanctuaries in Maharashtra. Srivastava et al. (2006) also observed 18 fish species in Ramgarh lake at Gorakhpur. Similarly, Khanna et al. (2007), also reported 36 fish species in the Sang River.”
“Venkatesahwaralu et al. (2007), observed natural carotenoids for pigmentation in fish.
Uchchariya (2012) reported 40 species,12 families and 6 orders, out of which Cypriniformes was dominant 55% followed by Siluriformes 20%, Perciformes 15%, Symbranchiformes 5% and Osteoglossiformes, Beloniformes 1.5%.”
“Gunasekar and Isaasc (2017) investigated the biodiversity of 25 freshwater fishes of 5 orders,12 families, and 21 genera in Indrapuri Dam, District Rohtas, Bihar. Donde and Patil (2018) reported that fish diversity of Vaitarna river, Wada Taluka District Palghar, Maharastra was less in comparison to the previous year.”
“Among the investigated fishes Actinopterygii was a major class of fish observed. Muniya et al. (2019) studied ichthyofaunal diversity of the Kadana reservoir located in the Mahisagar district of Gujrat. They recorded a total of 32 fish species belonging to 6 orders, 13 families, and 22 genera.”
“The finfish variety of the Narmada River and its tributaries in Central and Western India was examined by Bhakta et al. (2020). A total of 196 fish species were gathered and organized into 14 orders, 51 families, and 126 genera.”
“They reported 78 species (or 39.8%), the order Cypriniformes has the greatest diversity of fish. They reported again that due to the great diversity of fish found in the Narmada River system, appropriate development and management plans must be created to preserve the fish population.”
“In the Mahepura district of North Bihar, the ichthyofaunal variety was identified by Kumari and Yadav (2020) in the tributaries of the Kosi River. A total of forty-five fish species were identified, classified into 33 genera, 18 families, and 8 orders.”
“The order Cypriniformes comprised the highest share of these, with 42.2%, followed by Siluriformes, 24.4%, Perciformes, 15.6%, Osteoglossiformes and Synbranchiformes, 4.4%, and Tetradontiformes 2.2%.”
Source Citation:
- Thesis title: Seasonal Variations in Hydrological Parameters and Status of Fish Diversity in Bichnaiyya Lake Wetland of District Basti UP India
- University and Department: Siddharth University, Department of Zoology
- Year of submission: 2025
- Page number: Pages 17–18
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