Research article · 2025 · Full text
International Journal of Biology SciencesReview Article: Freshwater Fish Biodiversity Conservation in Maharashtra
Volume 7(6) · Pages 102–103 · DOI: 10.33545/26649926.2025.v7.i6b.362 ↗
Research areasFish Biology and Ecology StudiesFisheries and Aquaculture Studies
Abstract
Author-writtenFreshwater ecosystems in Maharashtra are rich in biodiversity and provide essential ecological, economic, and social services. However, this biodiversity, particularly freshwater fish species, faces severe threats from habitat destruction, pollution, invasive species, and overfishing. This review highlights the current status, challenges, and strategies for conserving freshwater fish biodiversity in Maharashtra. Using detailed methodologies and in-depth analysis, the article explores recent advancements, knowledge gaps, and actionable measures for conservation.
Summary
Source-checkedPlain-language reading of the full paper, prepared with AI and checked against the text. Each point links to the authors' own words.
Why it matters
- Freshwater ecosystems in Maharashtra are highly biodiverse and provide critical social, economic, and ecological services. View evidence ↗
- Freshwater fish species in the region are under severe threat due to overfishing, pollution, invasive species, and the destruction of their habitats. View evidence ↗
The question
- The objective of this review is to examine the current status, the challenges faced, and the potential strategies for conserving freshwater fish biodiversity in Maharashtra. View evidence ↗
What they did
- The authors conducted a systematic review of government reports, books, and peer-reviewed journals using databases including Google Scholar, PubMed, and Scopus. View evidence ↗
- The study used the Threats Classification Scheme and IUCN Red List criteria to categorize the threats facing fish biodiversity. View evidence ↗
What they found
- Maharashtra is home to approximately 216 species of freshwater fish, including several that are threatened or endemic. View evidence ↗
- Several notable species, such as Puntius spp., Clarias magur, and the Deccan Mahseer (Tor khudree), are categorized as endangered or vulnerable. View evidence ↗
- The construction of dams has caused river fragmentation, which has altered the natural flow regimes of the water. View evidence ↗
- Native fish populations have been displaced by the introduction of invasive species, such as Oreochromis mossambicus. View evidence ↗
- Climate change, specifically erratic rainfall and rising temperatures, has led to the disruption of fish breeding cycles. View evidence ↗
- Integrated watershed management has been shown in recent studies to be an effective method for promoting the conservation of biodiversity. View evidence ↗
What it means
- The authors conclude that freshwater fish biodiversity in Maharashtra is at a critical point, necessitating immediate action and the implementation of sustainable conservation measures. View evidence ↗
- Effective management of biodiversity can be achieved through a combination of scientific research, local community involvement, and policy support. View evidence ↗
- The authors identify enforcement gaps, a lack of public awareness, and funding constraints as significant challenges that require immediate attention. View evidence ↗
Visual summary
1 visualsIllustrations explain the paper; they do not show study data.
Threats to Freshwater Fish
AI-generated conceptual illustration (Freshwater fish of Maharashtra in a river ecosystem). It explains the idea and does not show study data.
View source evidence ↗Introduction
Maharashtra is endowed with diverse freshwater ecosystems, including rivers, lakes, reservoirs, and wetlands, which support a rich array of freshwater fish species (Kharat et al., 2012) [2]. These ecosystems are integral to the state's ecological balance and livelihood of local communities. However, increasing anthropogenic pressures have led to habitat degradation, threatening aquatic biodiversity (Dahanukar et al., 2004) [1]. This review critically examines the challenges and opportunities for freshwater fish biodiversity conservation in Maharashtra, focusing on recent studies and conservation initiatives.
Methodology
Literature Review A systematic review of peer-reviewed journals, books, and government reports was conducted. Databases such as Scopus, PubMed, and Google Scholar were searched using keywords like "freshwater fish biodiversity Maharashtra," "conservation strategies," and "aquatic ecosystems." Field Surveys and Data Collection Data from recent field surveys conducted by various researchers and organizations were analyzed. Methods included: Electrofishing and Gill Netting: Standard methods to collect fish samples for species identification. Environmental DNA (eDNA): Advanced molecular techniques to identify species from water samples. Habitat Assessment: Geospatial tools and direct observation to document habitat conditions. Threat Assessment Threats were categorized using frameworks such as the IUCN Red List criteria and Threats Classification Scheme.
Analysis of Conservation Interventions Existing policies, community-based programs, and NGO-led initiatives were evaluated to identify gaps and propose improvements. NAAS Rating: 4.82 IJBS 2025; 7(6): 102-103 RR Raut Department of Zoology, Yogeshwari Mahavidyalaya Ambajogai, Dist. Beed, (MS) India GD Suryawanshi Department of Zoology, Yogeshwari Mahavidyalaya Ambajogai, Dist. Beed, (MS) India AR Kurhe Department of Zoology, P.V.P.
College, Pravaranagar, Loni, Dist. A. Nagar, (MS) India RV Bhagde Department of Zoology, S.N. Arts, D.J.M.
Commerce and B.N. Sarada College (Autonomous), Sangamner, District Ahilyanagar, Maharashtra, India RR Raut Department of Zoology, Yogeshwari Mahavidyalaya Ambajogai, Dist. Beed, (MS) India https://www.biologyjournal.net
Conclusion
Maharashtra's freshwater fish biodiversity is at a critical juncture. Immediate action is required to address threats and implement sustainable conservation measures. A combination of policy support, scientific research, and local community involvement can pave the way for effective biodiversity management.
Introduction
of species like Oreochromis mossambicus has displaced native fish populations (Kharat et al., 2003) [5]. Climate Change Rising temperatures and erratic rainfall patterns have disrupted breeding cycles. Conservation Strategies 1. Policy and Regulation Strengthen the implementation of the Biodiversity Act, 2002. Regular monitoring of fish populations under the Wildlife Protection Act, 1972. 2.
Community-Based Conservation Engage local communities in sustainable fishing practices and habitat restoration (Singh et al., 2014) [7]. 3. Habitat Restoration Rejuvenation of degraded wetlands and riparian zones through afforestation and pollution control. 4. Research and Monitoring Expand the use of eDNA and GIS tools for real-time monitoring of fish biodiversity. Establish freshwater biodiversity conservation centers. 5. Awareness and Education Conduct awareness programs to highlight the ecological and economic importance of freshwater fish.
Discussion
Effective conservation of freshwater fish biodiversity in Maharashtra requires a multi-pronged approach. Community participation, coupled with scientific interventions, can yield long-term benefits. Challenges such as funding constraints, lack of public awareness, and enforcement gaps need immediate attention. Recent studies have demonstrated the effectiveness of integrated watershed management in promoting biodiversity conservation (Joshi et al., 2020) [4].
References
7 in the original paper- Dahanukar N, Raut R, Bhat A. Distribution, endemism, and threat status of freshwater fishes in the Western Ghats of India. J Biogeogr. 2004;31(1):123-36.
- Dahanukar N, Paingankar M, Raut R, Kharat S. Fish fauna of Indrayani River, northern Western Ghats, India. J Threat Taxa. 2012;4(1):2310-7.
- Jayaram KC. The freshwater fishes of the Indian region. New Delhi: Narendra Publishing House; 2010.
- Joshi A, Kulkarni S, Tamhankar D. Integrated watershed management for biodiversity conservation: A case study from Maharashtra. Ecol Restor. 2020;38(3):45-52.
- Kharat SS, Dahanukar N, Raut RN, Paingankar M. Decline of freshwater fish populations in the Western Ghats, India. Curr Sci. 2003;85(8):1033-6.
- Poff NL, Olden JD, Merritt DM, Pepin DM. Homogenization of regional river dynamics by dams and global biodiversity implications. Proc Natl Acad Sci U S A. 2007;104(14):5732-7.
- Singh RK, Nautiyal P, Dobriyal AK. Community participation in sustainable fishery management in India. Asian Fish Sci. 2014;27(2):155-66. Current Status of Freshwater Fish Biodiversity in Maharashtra Maharashtra harbors approximately 216 species of freshwater fish, with several endemic and threatened species (Jayaram, 2010) [3]. Prominent river systems like Godavari, Krishna, and Tapi host diverse ichthyofauna. Notable species include Deccan Mahseer (Tor khudree), Clarias magur, and Puntius spp., many of which are listed as vulnerable or endangered (Dahanukar et al., 2012) [2]. Threats to Freshwater Fish Biodiversity Habitat Destruction River Fragmentation: Construction of dams has altered natural flow regimes (Poff et al., 2007) [6]. Urbanization and Industrialization: Increased pollution has degraded aquatic habitats. Overfishing High demand for ornamental and food fish has led to unsustainable harvesting practices. Invasive Species