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61,005 resultsShowing papers similar to Antioxidant and Microbiota Characteristics Across Different Mucosal Sites of Rice Flower Carp (Procypris merus)
ClearAntioxidative Defense and Gut Microbial Changes under Pollution Stress in Carassius gibelio from Bucharest Lakes
Researchers compared antioxidative responses and gut microbiome changes in Prussian carp collected from polluted and less-polluted lakes in Bucharest, finding that fish from more contaminated sites showed elevated oxidative stress markers and altered microbial communities consistent with exposure to heavy metals and other aquatic pollutants.
Assessment of Bactericidal Role of Epidermal Mucus of Major Carps Against Pathogenic Microbial Strains
Epidermal mucus extracts from two major carp species (Cirrhinus mrigala and Labeo rohita) demonstrated antibacterial activity against Klebsiella pneumoniae and Escherichia coli, suggesting that fish mucus has natural antimicrobial properties with potential applications in aquaculture disease management.
Dynamics of Gut Microbiome and Transcriptome in Korea Native Ricefish (Oryzias latipes) during Chronic Antibiotics Exposure
Researchers found that chronic low-dose exposure to erythromycin and ampicillin antibiotics disrupted the gut microbiome composition and altered immune and stress gene expression in Japanese rice fish (Oryzias latipes), suggesting that antibiotic residues in aquatic environments can cause lasting physiological effects in fish.
Influence of host phylogeny and water physicochemistry on microbial assemblages of the fish skin microbiome
Researchers conducted a large-scale analysis of nearly 2,000 fish skin microbiome samples across 98 species to understand what factors shape microbial communities on fish surfaces. They found that host evolutionary history and water chemistry, particularly salinity and temperature, were the strongest predictors of skin microbiome composition. The study provides a broad framework for understanding how environmental stressors, including pollutants, may disrupt the beneficial microbial communities on fish.
Characterization of skin- and intestine microbial communities in migrating high Arctic lake whitefish and cisco
Researchers characterized the skin and intestinal microbiomes of migratory Arctic lake whitefish and cisco, finding that microbial communities varied between species and body sites, with implications for understanding fish health in changing Arctic environments.
Deciphering the gut microbiome of grass carp through multi-omics approach
This multi-omics study profiled the gut microbiome, transcriptome, and metabolome of grass carp to identify microbial species and metabolic pathways that support host metabolism and immunity, providing a foundation for developing microbiome-targeted feed additives as antibiotic alternatives in aquaculture.
Association of Fungi in the Intestine of Black Carp and Grass Carp Compared with their Cultured Water
Researchers characterized and compared the intestinal fungal communities of grass carp and black carp and their cultured water using high-throughput sequencing, finding species-specific differences in gut fungal composition that correlated partially with surrounding water microbiota.
Effects of different temperatures on Leiocassis longirostris gill structure and intestinal microbial composition
Researchers exposed a freshwater catfish species to cold (4°C), normal (26°C), and hot (32°C) water temperatures and found that both extremes damaged gill tissue and disrupted the balance of gut bacteria, with cold stress causing a larger shift toward opportunistic pathogens. The findings reveal how temperature stress compromises fish immune health, relevant as climate change increases the frequency of extreme weather events.
Modern research on the study of the intestinal microbiome in fish (review)
This review examines recent research on the intestinal microbiome of fish, synthesizing findings on microbiome composition across more than 100 teleost species and exploring the microbiome as a potential biomarker for fish health and aquaculture optimization.
Immunonutrition: facilitating mucosal immune response in teleost intestine with amino acids through oxidant-antioxidant balance
This review explores how specific amino acids can boost the immune response in the intestines of fish by modulating oxidative stress and antioxidant balance. Researchers found that nutrients like glutamine, arginine, and tryptophan help strengthen the mucosal immune barrier in the fish gut, which is important for disease resistance in aquaculture. While focused on fish health, the findings contribute to broader understanding of how nutrition influences gut immunity across species.
Deciphering the gut microbiome of grass carp through multi-omics approach
Researchers used multiple layers of molecular data (multi-omics) to map the gut microbiome of grass carp, identifying key bacterial functions and potential targets for improving fish gut health — findings that could benefit aquaculture and our understanding of how gut microbes support digestion in fish.
Immune and Oxidative Stress Response of the Fish Xyrichthys novacula Infected with the Trematode Ectoparasite Scaphanocephalus sp. in the Balearic Islands
Researchers studied the immune and oxidative stress responses of the fish Xyrichthys novacula infected with a parasitic trematode in the Balearic Islands. They found that as infection severity increased, antioxidant enzyme activity and immune markers rose progressively in the fish's skin mucus, though these defenses were insufficient to prevent oxidative damage at high infection levels. The study provides baseline data on how parasitic infections stress wild fish populations in Mediterranean waters.
Copper and Microplastic Exposure Affects the Gill Gene Expression of Common Carp During Saltwater Challenge
This study examined how combined copper and microplastic exposure affects gill gene expression in common carp, finding synergistic stress responses including upregulation of genes involved in oxidative stress defense and immune function.
Ecological Toxicity, Oxidative Stress and Impacts of Microplastics on Fish Gills
This review summarizes research on how microplastic exposure damages fish gills, a critical organ for breathing, waste removal, and maintaining body chemistry. Researchers found that microplastics cause oxidative stress, DNA damage, and structural changes to gill tissue, which can impair blood parameters and overall fish health. The findings highlight that gill damage from microplastics may be a widespread concern for freshwater and marine fish populations.
Organ-specific Microplastic Accumulation and Associated Oxidative Stress and Immune Responses in Barbonymus gonionotus from Downstream Bengawan Solo River, Indonesia
Researchers examined microplastic accumulation and associated biological stress responses in wild fish from the Bengawan Solo River in Indonesia. They found that gills accumulated the most microplastics, with evidence of particles translocating to muscle tissue, and observed elevated markers of immune activation and oxidative stress. The study suggests that combining particle characterization with biological measurements provides a sensitive framework for monitoring microplastic impacts on freshwater fish.
Exposure to polypropylene microplastics via diet and water induces oxidative stress in Cyprinus carpio
Researchers fed carp fish polypropylene microplastics through both food and water and found that exposure caused oxidative stress in the liver, gills, and intestines. The damage was dose-dependent, with higher microplastic concentrations causing more harm to the fish's antioxidant defense systems. Since carp is a widely consumed fish, these findings raise questions about whether microplastics in aquaculture could affect the safety of fish as human food.
Bacterial communities in co-cultured fish intestines and rice field soil irrigated with aquaculture wastewater
Bacterial communities in fish intestines and rice field soil were compared in an integrated aquaculture-agriculture system where fields are irrigated with fish farm wastewater. Results showed that fish intestinal bacteria influenced the microbial communities in the irrigated soil. Understanding these interactions is important for managing food safety and ecosystem health in aqua-agriculture systems.
Toxic effects of long-term polystyrene microplastic exposure on gut microbiota, antioxidant capacity, and digestive enzyme activities in Thamnaconus septentrionalis
Researchers exposed filefish (Thamnaconus septentrionalis) to 1 and 5 µm polystyrene microplastics for 30 days and examined gut microbiota, antioxidant capacity, and digestive enzymes. Both particle sizes disrupted gut microbial diversity and reduced antioxidant defenses, with smaller particles generally causing more pronounced effects.
Microbial Resistance to Antibiotics and Biofilm Formation of Bacterial Isolates from Different Carp Species and Risk Assessment for Public Health
Researchers examined antibiotic resistance and biofilm formation in bacteria isolated from common, silver, and grass carp species. While antibiotic residues were detected in fish samples, the estimated daily intake was well below acceptable limits, and the study suggests that fresh fish consumption remains safe from this perspective.
Comparison of Intestinal Bacteria of Procambarus clarkii Farmed in Various Rice Paddy Regions
Researchers analyzed gut microbiota in red swamp crayfish (Procambarus clarkii) farmed across different rice paddy regions of China, finding significant regional differences in intestinal bacterial communities linked to local environmental conditions.
The Interaction between Oxidative Stress Biomarkers and Gut Microbiota in the Antioxidant Effects of Extracts from Sonchus brachyotus DC. in Oxazolone-Induced Intestinal Oxidative Stress in Adult Zebrafish
Researchers found that extracts from Sonchus brachyotus DC. alleviated oxazolone-induced intestinal oxidative stress in zebrafish by modulating antioxidant enzyme activity and reshaping gut microbiota composition.
Microplastics: A tissue-specific threat to microbial community and biomarkers of discus fish (Symphysodon aequifasciatus)
Researchers found that polystyrene microplastics cause tissue-specific effects in discus fish, inhibiting growth, altering microbial communities in skin, gills, and intestine, and disrupting biomarker responses in a concentration-dependent manner after 28 days of exposure.
Histopathological alterations in gills of common carp (Cyprinus carpio Linnaeus, 1758) as a biomarker of heavy metal pollution in Narmada River
This study assessed heavy metal contamination in six sites along India's Narmada River and examined associated histopathological damage to common carp gill tissue, finding site-dependent metal accumulation patterns that correlated with measurable tissue injury in fish.
A metagenomic analysis of gut microbiome phylogeny among four economically important carp species from wild and aquaculture farms
This publication presents a metagenomic analysis of gut microbiome phylogeny in four economically important carp species comparing wild and aquaculture populations, alongside research on the impact of different feed types on cannibalism in early larval stages of Koi carp.