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Aquatic Beetle Diversity in an Urban Freshwater Ecosystem: Insights from Banabitan Biodiversity Park, Salt Lake, Kolkata, West Bengal, India

Year: 2025

Type: article

Abstract: This study was conducted from January 2024 to March 2025 at Banabitan Biodiversity Park, located at Salt Lake, Kolkata. The study aimed to document the diversity and species richness of aquatic beetles within the park’s extensive waterbody while concurrently assessing water quality parameters such as pH, Total Dissolved Solutes (TDS) and Electrical Conductivity (EC). 14 species across four families (Gyrinidae, Noteridae, Dytiscidae, and Hydrophilidae) were identified, with Hydrophilidae demonstrating the highest species richness (6 species), followed by Dytiscidae (5 species), Noteridae (2 species) and Gyrinidae (1 species). Concurrent water analyses revealed pH values ranging from 7 to 10, a TDS of 268 ± 10 ppm, and an EC of 441 ± 20 µs/cm, suggesting variable but generally favourable conditions for aquatic life. Multivariate analyses demonstrated that water quality parameters, especially pH, are significant drivers of species composition, with a marked negative relationship observed between increasing pH and beetle abundance.

Source: Records of the Zoological Survey of India

DOI: 10.26515/rzsi/v125/i2s/2025/172998

Authors: Abhik Rong, Lina Chatterjee, Arjan Basu Roy, Sujit Kumar Ghosh, Biplob Kumar Modak, Bulganin Mitra

Institutions: Ramakrishna Mission Vidyamandira, Ramakrishna Mission Vivekananda Educational and Research Institute, Zoological Survey of India, Sidho-Kanho-Birsha University

Language: English

Topic: Freshwater macroinvertebrate diversity and ecology

Subfield: Ecology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

OpenAlex ID: W4414512105

FWCI:

Cites: 20

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