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31 articles for “Freshwater fishes”
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Evaluation of Metal Pollution in Wetlands Using Fish as an Indicator
Abstract: The current study has attempted to document the heavy metal pollution in wetlands using fish as an indicator. Heavy metals are one of the most toxic, persistent and widespread groups of contaminants in aquatic systems. Their effects may often occur and remain unrecognized at the individual level but slowly, over a period of time, show up at a population level. Over a few decades globally there has been growing interest …
Published in Research and Reviews: A Journal of Toxicology · Vol. 1, Issue 1-3, 2011 · pp. 28–38 Read article
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Histological Alteration in the Kidney of a Fresh Water Cat Fish Clarias Batrachus Exposed to Silver Nanoparticles
Abstract: Despite increasing application of silver nanoparticles (NPs) in industry and consumer products, there is still little known about their potential toxicity, particularly to organism in aquatic environment. Our aim is to investigate the fate and effect of silver NPs in fish Clarias batrachus. The histological alterations in the kidney of a freshwater catfish Clarias batrachus exposed to sublethal concentration silver nanoparticle were examined. The kidney exhibited shrinkage of glomeruli but …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 1–8 Read article
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Ecological and Biomonitoring Studies of Freshwater with Reference to Selected Phytoplankton Species of Manar Reservoir, Maharashtra
Abstract: Freshwater reservoirs play a crucial role in supporting domestic, agricultural, and fisheries requirements, particularly in semi-arid regions of Maharashtra. Rivers and the surface water are important sources of drinking and several other usages. Aquatic ecosystems are vital in the supply of nutritious food and food source supplementation. Therefore, we selected to study the role of plankton within the aquatic ecosystem systematically here. Plankton are very small organisms; they are of …
Published in Research & Reviews : Journal of Ecology · Vol. 15, Issue 1, 2026 · pp. 1–16 Read article
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Diversity of Bacillariophyceae in Gorja Lake Near Bhadrawati Tahsil, District Chandrapur (Maharashtra), India
Abstract: The Gorja lake is a principal fresh water body located in Gorja village of Bhadrawati tahsil in Chandrapur district of Maharashtra state, India. Bhadrawati is a tahsil place. It is 25 km north side of Chandrapur and 125 km south east side from Nagpur. It is situated at about 211 m above the mean sea level. A study of Bacillariophyceae was undertaken during June 2014 to May 2016, two years …
Published in Research & Reviews : Journal of Ecology · Vol. 6, Issue 3, 2017 · pp. 23–27 Read article
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Impact of Hexavalent Chromium on Histopathology in Freshwater Stinging Catfish Heteropneustes Fossilis
Abstract: Acute toxicity of Cr (VI) (as K2Cr2O7) to freshwater stinging catfish, Heteropneustes fossilis and its histopathological impacts on gill and liver tissue were evaluated. Fish showed behavioral alterations after K2Cr2O7 exposure and 96 h-LC50 was 35.724 mg/L in static bioassay. Fish were exposed to three sub-lethal concentrations (concentration I=1/4th of 96 h-LC50, concentration II=1/10th of 96 h-LC50 and concentration III=environmental concentration of Cr reported in the river Buriganga). Blood, liver …
Published in Research and Reviews: A Journal of Toxicology · Vol. 3, Issue 1, 2013 · pp. 12–19 Read article
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The Predatory Bacteria, Bdellovibrio and Like Organisms (BALOs): An Emerging Savior for Human Welfare
Abstract: Bdellovibrio and like organisms (BALOs) are capable of killing other Gram negative pathogenic and non-pathogenic bacteria dwelling in a diverse environmental niches such as soil, freshwater and ocean. The predatory nature of BALOs can be a viable alternative to conventional use of antibiotics to treat ocular, periodontal, respiratory and fish pathogen infections since the incessant use develops resistance against them. Unique property such as potential to survive in ecologically hazardous …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 · pp. 19–33 Read article
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Geospatial Technology Application on Sustainable Wetland Management & Monitoring: A Case of Ansupa Lake, Odisha
Abstract: Ansupa, the largest freshwater lake and a wetland of Odisha lie between 20025’ to 20030’ N latitude and 850 35’ to 85037’ E longitude in the Banki Subdivision of Cuttack district. Ansupa, the so-called sister lake of Chilika once was looking like a heavenly picture gallery with small fishing boat on the blue waters and hills on the banks, birds of different colors and above all lotus and lilies. The …
Published in Journal of Remote Sensing & GIS · Vol. 10, Issue 2, 2019 · pp. 13–18 Read article
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Aerator Monitoring System for Fisheries Using Internet of Things
Abstract: To manage aquaculture effectively, we need to monitor water quality constantly. This helps prevent the depletion of dissolved oxygen, which can lead to fish suffocating. Such monitoring is especially critical in intensive pond systems. If we ignore this and fail to take action quickly, we risk losing all our fish, resulting in high costs that could have been avoided. This paper introduces a low-cost Internet of Things (IoT) based aerator …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 14, Issue 2, 2025 · pp. 1–8 Read article
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The Crustacean Animal: Potamon magnum
Abstract: In the present study, the most recent visceral crustacean Potamon magnum was studied. It is a genus of freshwater or semi-earth crabs found mainly through the Middle East from Southern Europe, as far east as north-west Egypt. The mere exception is the North African P. algeriense, which is also continental Africa's only potamid. There are currently 20 species identified. Such crabs are omnivores with high environmental tolerance. Throughout their 10–12 …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 8, Issue 3, 2019 · pp. 9–12 Read article
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Impact of Marine Pollution Threats and Conservation of Marine Biodiversity
Abstract: Ocean occupies 71% of earth’s surface and is traditionally divided into four large basins including North and South Atlantic, North and South Pacific, Arctic and Indian oceans. In India we have a vast coastal area of 7516.6 km from Kolkata to Gujarat and also many islands including Andaman and Nicobar and Lakshadweep with vast fin and shellfish biodiversity. Human interference and both natural and artificial factors pose the biggest threat …
Published in International Journal of Marine Life · Vol. 1, Issue 1, 2024 · pp. 20–24 Read article
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Molecular Surveillance of Spring Viraemia of Carp Virus (SVCV) and Koi Herpesvirus (KHV) Across Major Aquaculture Zones of Telangana, India
Abstract: Viral diseases represent a persistent threat to cyprinid aquaculture; however, region-specific surveillance data from tropical production systems remain limited. To address this gap, a comprehensive statewide active surveillance programme was undertaken across Telangana, India, from 2019 to 2022 to investigate the occurrence of two priority transboundary pathogens, Spring Viraemia of Carp Virus (SVCV) and Koi Herpesvirus (KHV). A total of 414 fish specimens were systematically collected from five surveillance sectors …
Published in International Journal of Virus Studies · Vol. 3, Issue 2, 2026 Read article