International Science Community Association International Research Journal of Biological Sciences 15 1 2026 02 10 Negative impact of agricultural pesticides in river water ecosystem: A review 30 32 EN Soumaya Boudjemaa 1 University Hospital Centre, Batna, Algeria and Medical faculty, University of Batna, Algeria Said Nadji 2 University Hospital Centre, Constantine, Algeria Chahrazed Rajai 3 University Hospital Centre, Batna, Algeria Hannen Benaldjia 4 University Hospital Centre, Batna, Algeria and Medical faculty, University of Batna, Algeria Berkahoum Alamir 5 National Toxicology Centre, Algeirs, Algeria . Bharati 1 Research Scholar, SSJDWSSS GPGC, Ranikhet, Almora, India Singh Rajkumar 2 Professor, Lal Bhadur Shastri GPGC, Halduchaur, Nainital, India Kumar Shankar 3 Research Scholar, SSJDWSSS GPGC, Ranikhet, Almora, India Goswami Pooja 1 Department of Zoology, Government College Kota, Kota, Rajasthan, India Mayangar Meenakshi 2 Department of Zoology, Government College Kota, Kota, Rajasthan, India Ahirwar J.R. 1 Prime Minister College of Excellence, ASCA, Govt. P.G. College Niwari, MP, India Verma Anup Kumar 1 Department of Zoology, Acharya Narendra Dev Kisan P.G. College, Babhnan, Gonda, UP, India Singh Abhinav 2 Department of Zoology, Acharya Narendra Dev Kisan P.G. College, Babhnan, Gonda, UP, India Chaudhary Anu 1 Acharya Narendra Dev Kisan Post graduate College Babhnan Gonda, Uttar Pradesh-271313, India Singh Abhinav 2 Department of Zoology, Acharya Narendra Dev Kisan Post graduate College Babhnan Gonda, Uttar Pradesh– 271313 India > Short Review Paper 2025 12 9 2026 02 10 Agricultural pesticides are frequently utilized to boost crop production but can seep into nearby water sources, resulting in the pollution of aquatic ecosystems. This review examines the different ways in which pesticides enter rivers, such as through runoff and drainage. These substances can modify the physicochemical characteristics of rivers, disrupt aquatic organisms, leading to decreased biodiversity, changes in species composition, and negatively affecting reproductive success in fish and invertebrates. Additionally, pesticides can alter the composition of species and harm the reproduction of aquatic creatures, while consuming fish and other aquatic organisms contaminated with these substances poses detrimental effects on human health. This review emphasizes the need for improved monitoring strategies, the implementation of integrated pest management (IPM) practices, and stricter regulations to mitigate pesticide runoff and safeguard river ecosystems. Copyright@ International Science Community Association