320 results match your criteria: "-Central Inland Fisheries Research Institute[Affiliation]"

Article Synopsis
  • Fish are key indicators of ecological health, and a study monitored their habitat in the Ganga River between July 2021 and July 2022 to assess environmental restoration.
  • The research focused on the fish Gudusia chapra, tracking their food sources and physiochemical conditions using various pollution indices, revealing a significant increase in fish catch and a decrease in pollution levels.
  • Analyses showed that factors like water velocity, transparency, and oxygen levels critically influence the fish species, highlighting the importance of these environmental variables for their habitat quality.
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Anthropogenic and climatic changes are continuously altering the freshwater plankton, necessitating an evaluation of the complex structure of plankton communities to understand and mitigate these impacts. In this context, the present study focuses on evaluating the structure of plankton communities, specifically Phytoplankton Functional Groups (FGs) for assessing the environmental sensitivity of wetlands under changing scenario. These FGs are defined by shared adaptive features rather than taxonomic traits.

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Colorimetric detection of Cr(VI) in water using tetramethyl benzidine (TMB) as an indicator.

Spectrochim Acta A Mol Biomol Spectrosc

January 2025

Aquatic Environmental Biotechnology Division, ICAR-Central Inland Fisheries Research Institute (ICAR-CIFRI), Barrackpore, Kolkata-700120, West Bengal, India.

Hexavalent chromium (CrVI) poses a serious risk to both human and environment health. Hence, a simple, robust, and efficient analytical method must be developed to monitor the presence of Cr(VI) in the environment. The current investigation concentrated on the colorimetric detection of Cr(VI) using TMB as indicator in the presence of HO.

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A comparative assessment of phytoplankton dynamics during low tide (LT) and high tide (HT) was conducted from February 2022 to January 2023 in a tropical mesotidal creek, Manori, Mumbai, India. In total, 124 phytoplankton species were recorded. The HT resulted in greater species richness (124 species) and diversity indices (Shannon-Wiener's index) than the LT (102 species).

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Despite continuous efforts, eutrophication is still occurring in freshwater and phosphorus (P) is the most important nutrients that drive the eutrophication in rivers and streams. However, little information is available about the distribution of P fractions in river sediment. Here, the sequential extraction approach was used to evaluate the sediment P fractionation and its content in the anthropogenically damaged river Ganga, India.

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Consumption of toxic metal contaminated fish is a significant risk to human health. The Ganga river is one of the vital river systems in India, and it nurtures a rich biodiversity of flora and fauna. In the present study, screening of potential toxic metal elements (Cd, Cr, Mn, Cu, Pb, Ni, Zn, and As) was undertaken in 31 food fishes, especially the small indigenous fishes (SIFs) from the lower stretch of river Ganga by inductively coupled plasma mass spectrometry (ICP-MS).

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Behavioural changes, DNA damage and histological alterations in Labeo rohita fingerlings in response to organic-coated silver nanoparticles.

Environ Sci Pollut Res Int

July 2024

Division of Fish Genetics and Biotechnology, Faculty of Fisheries Rangil Ganderbal, SKUAST-Kashmir, Srinagar, India.

Silver nanoparticles (AgNPs) have garnered significant global attention from researchers due to their unique physicochemical properties and wide-ranging applications in industry and medicine. However, their release into aquatic ecosystems has raised concerns regarding potential ecotoxicological consequences. The present study investigated the effects of polyvinyl pyrrolidone-coated silver nanoparticles on Labeo rohita fingerlings, focusing on behavioural reactions, genotoxic effects, histological changes and bioaccumulation.

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The Sundarbans mangrove, located at the mouth of the Ganges and Brahmaputra Rivers, is the world's largest tidal mangrove forest. These mangroves are also one of the most striking sources of microbial diversity, essential in productivity, conservation, nutrient cycling, and rehabilitation. Hence, the main objective of this study was to use metagenome analysis and provide detailed insight into microbial communities and their functional roles in the Sundarbans mangrove ecosystem.

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Amino acids are significant biomolecules that govern the major metabolic processes and act as precursors for macromolecules such as proteins that are crucial to life. Fish is an integral component of human nutrition and a dietary source of high-quality animal proteins and amino acids. In this context, the crude protein and amino acid compositions of food fish from different landing stations of the Ganga river have been determined.

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Introduction: STAT1a is an essential signal transduction protein involved in the interferon pathway, playing a vital role in IFN-alpha/beta and gamma signaling. Limited information is available about the STAT protein in fish, particularly in Indian major carps (IMC). This study aimed to identify and characterize the STAT1a protein in (LrSTAT1a).

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Grass carp intestinal waste-mediated biosynthesized nanosilver (AgNPs) was valorized using guaran and zeolite matrices, resulting in AgNPs-guaran, AgNPs-zeolite, and AgNPs-guaran -zeolite composites. The valorized products were examined using Environmental Scanning Electron Microscopy, Energy Dispersive X-ray analysis and X-ray Diffraction analysis to confirm uniform dispersion and entrapment of AgNPs within the matrixes. These valorized products were evaluated for their efficacy in detoxifying the ubiquitous and toxic hexavalent chromium (Cr) in aquatic environments, with Anabas testudineus exposed to 2 mg l of Cr for 60 days.

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Article Synopsis
  • Wetlands are crucial for supporting diverse aquatic life, and the Beledanga wetland study over three years revealed 48 genera of phytoplankton, with a peak abundance during the monsoon season.
  • Significant seasonal variations in phytoplankton populations were linked to physicochemical factors like dissolved oxygen and nitrogen levels, showing that climate parameters also influence phytoplankton growth.
  • The study highlighted a concerning high Algal Pollution Index, suggesting ecological stress due to human activities, and recommended regulating these activities to protect biodiversity in the wetland.
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Heavy metal enrichment in river sediments poses a significant risk to human and aquatic health. The Yamuna River faces severe challenges due to untreated industrial and domestic wastewater discharge. The study evaluates sediment metal content, ecological and human health risks, and potential sources.

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A series of 16 novel prenylated chalcones () was synthesized by microwave-assisted green synthesis using 5-prenyloxy-2-hydroxyacetophenone and different benzaldehydes. Comparisons were also performed between the microwave and conventional methods in terms of the reaction times and yields of all compounds, where the reaction times in the microwave and conventional methods were 1-4 min and 12-48 h, respectively. The synthesized compounds were characterized using different spectroscopic techniques, including IR, H-NMR, C-NMR, and LC-HRMS.

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Unlabelled: The major challenge in the development of affordable medicines from natural sources is the unavailability of logical protocols to explain their mechanism of action in biological targets. FimH (Type 1 fimbrin with D-mannose specific adhesion property), a lectin on E. coli cell surface is a promising target to combat the urinary tract infection (UTI).

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Article Synopsis
  • The study investigates how periphyton can reduce arsenic toxicity in Labeo rohita fish while considering food safety for humans.
  • The introduction of periphyton alongside arsenic-contaminated water showed significant improvements in various health parameters of the fish, including respiratory function and immune response.
  • The findings indicate that using periphyton in aquaculture can lead to safer fish with lower arsenic levels, thereby reducing potential health risks for consumers.
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The global rise of zoonotic bacteria resistant to multiple antimicrobial classes and the growing occurrence of infections caused by spp. resistant to β-lactam antibiotics pose a severe threat to animal and human health. However, the contribution of natural environments, particularly aquatic ecosystems, as ideal settings for the development and spread of antimicrobial resistance (AMR) is a key concern.

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This study investigated the dietary immunomodulatory effects of bark powder (TABP) in , a freshwater fish model. Four iso-nitrogenous and iso-caloric diets containing graded levels of TABP (0, 1, 10, and 15 g/kg were fed to fish for 90 days, followed by a 10 day challenge with pathogenic bacteria and . An integrated biomarker response (IBR) approach assessed the impact of TABP on hematological, adaptive, and humoral immune parameters, along with liver histomorphology.

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Background: Small-scale fishers of Indian Sundarbans depend on open-water fisheries for their livelihoods. They often face health, occupational, and safety issues in their profession due to environmental, socio-economic, and policy changes. The morbidity pattern and related risk factors are important indicators of well-being for any community, hence applicable to small-scale fishers of Sundarbans.

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Metagenomic landscape of sediments of river Ganga reveals microbial diversity, potential plastic and xenobiotic degradation enzymes.

J Hazard Mater

June 2024

Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, 700120 Kolkata, West Bengal, India; Rani Lakshmi Bai Central Agricultural University, Jhansi 284003, Uttar Pradesh, India. Electronic address:

Article Synopsis
  • The Ganga River, vital for agriculture and religious practices in India, is severely polluted due to industrial waste and untreated sewage, harming aquatic life.
  • A study examined the microbial diversity and enzymes capable of degrading plastics and other pollutants in sediments from two locations, Prayagraj and Devprayag, revealing significant differences in microbial community structures.
  • The research identified 13 plastic-degrading enzymes and 18 xenobiotic degradation enzymes, highlighting potential solutions for pollution management and ecosystem sustainability in the Ganga.
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Antibiotics are commonly used to treat infectious diseases; however, persistence is often expressed by the pathogenic bacteria and their long-term relative effect on the host have been neglected. The present study investigated the impact of antibiotics in gut microbiota (GM) and metabolism of host. The effect of ampicillin antibiotics on GM of Drosophila melanogaster was analyzed through deep sequencing of 16S rRNA amplicon gene.

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Article Synopsis
  • The study investigates the gut microbiome composition in advanced fingerling and fingerling stages of striped pangasius catfish and catla under both healthy and diseased conditions.
  • Healthy fish were injected with a bacterial pathogen (A. hydrophila) to analyze changes in their intestinal microbiota through 16s metagenomic analysis.
  • The findings reveal differences in dominant bacterial phyla between the life stages of fish, highlighting the potential for identifying bacteria that could enhance fish health and inform disease prevention strategies in aquaculture.
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Intestinal parasitic infections caused by helminths are globally distributed and are a major cause of morbidity worldwide. Parasites may modulate the virulence, gut microbiota diversity and host responses during infection. Despite numerous works, little is known about the complex interaction between parasites and the gut microbiota.

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Recent Progress and Prospect of Metal-Organic Framework-Based Nanozymes in Biomedical Application.

Nanomaterials (Basel)

January 2024

Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia.

Article Synopsis
  • * Recent interest in metal-organic frameworks (MOFs) as nanozymes has grown due to their unique structure, which allows them to mimic enzyme functions effectively and be tuned for specific applications.
  • * This review focuses on the advancements in MOF-based nanozymes, discussing their enzyme-mimicking abilities, applications in biosensing and therapeutics, and addressing the challenges that need to be overcome for future development.
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