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61,005 resultsShowing papers similar to Modern research on the study of the intestinal microbiome in fish (review)
ClearA fishy gut feeling – current knowledge on gut microbiota in teleosts
This review summarizes what scientists know about the community of bacteria living in fish guts and how diet, environmental conditions, and pollutants shape that community. Microplastics and other pollutants can disrupt the gut microbiome in fish, harming their immune function and overall health. Since fish are a major food source for humans, understanding these effects matters for food safety.
Application of intestinal microbiota in marine fish for assessing the toxicity of typical pollutants: a literature review
This review examines how the gut microbiota of marine fish can serve as biomarkers for assessing the toxic effects of ocean pollutants, including microplastics, heavy metals, antibiotics, and petroleum hydrocarbons. The study highlights that changes in key microbial communities in fish intestines reflect environmental contamination levels and could provide valuable indicators for monitoring marine ecosystem health.
Plastics in our water: Fish microbiomes at risk?
This review examined how microplastics and leached plasticizers affect the gut microbiomes of freshwater and marine fish, summarizing evidence for dysbiosis and reduced microbial diversity and discussing potential consequences for fish immunity, metabolism, and environmental fitness.
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.
Understanding the links between micro/nanoplastics-induced gut microbes dysbiosis and potential diseases in fish: A review
This review examines how microplastics and nanoplastics accumulate in fish intestines and disrupt their gut bacteria, potentially leading to inflammation, immune problems, and metabolic diseases. The disrupted gut microbiome can weaken the intestinal barrier, allowing harmful substances to enter the fish's body. Since fish are a major protein source for billions of people, understanding how microplastics damage fish gut health is important for assessing risks to human food safety.
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.
The Characteristics of Intestinal Bacterial Community in Three Omnivorous Fishes and Their Interaction with Microbiota from Habitats
This study examined the gut bacterial communities of three omnivorous fish species in artificial fishery habitats, comparing them to bacteria in the surrounding water and sediment. Fish gut microbiomes partially reflected the environmental microbiota, suggesting habitat quality affects fish gut health. This is relevant to microplastics because microplastics alter both aquatic microbial communities and fish gut microbiomes.
Establishment of the Bacterial Microbiota in a Lab-Reared Model Teleost Fish, the Medaka Oryzias latipes
Researchers established a detailed characterization of the bacterial microbiota in lab-reared medaka (Oryzias latipes) across life stages from larvae to adults, addressing a significant knowledge gap in this important aquatic ecotoxicology model organism.
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.
Feasibility Study on Biomonitoring of Microplastics in Fish Gastrointestinal Tracts
This feasibility study assessed using fish gastrointestinal tracts as biomonitors for environmental microplastic contamination, evaluating sampling protocols, species selection, and analytical methods to establish standardized biomonitoring frameworks for marine plastic pollution.
Zebrafish: an efficient vertebrate model for understanding role of gut microbiota
This review describes how zebrafish serve as an efficient vertebrate model for studying gut microbiota and host-microbe interactions. Researchers found that zebrafish share key similarities with humans in intestinal physiology, and their optical transparency and high fecundity make them uniquely suited for microbiome research. The study outlines methods for creating germ-free zebrafish and summarizes current understanding of gut microbiota functions in this model organism.
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.
Characteristics of microplastic pollution in golden pompano (Trachinotus ovatus) aquaculture areas and the relationship between colonized-microbiota on microplastics and intestinal microflora
Researchers found that microplastics in golden pompano aquaculture areas colonize with distinct microbial communities that overlap with the fish's gut microbiota, increasing Proteobacteria and decreasing Firmicutes in the intestinal flora of fish living in more contaminated estuarine settings.
Gut Microbiota and Energy Homeostasis in Fish
This review explores the relationship between gut microbiota and energy balance in fish, examining how intestinal microorganisms communicate with the brain to influence feeding behavior, metabolism, and immune function. Researchers found that gut bacteria play a significant role in nutrient absorption, fat storage, and appetite regulation in fish. The study highlights the gut-brain axis as a key system for understanding how environmental changes, including pollutant exposure, may affect fish health.
Metabarcoding Analyses of Gut Microbiota of Nile Tilapia (Oreochromis niloticus) from Lake Awassa and Lake Chamo, Ethiopia
Researchers used 16S rRNA metabarcoding to characterize the gut microbiota of Nile tilapia (Oreochromis niloticus) from Lakes Awassa and Chamo in Ethiopia, identifying 2,061 operational taxonomic units and comparing microbial community composition across gut regions and between luminal and mucosal sample types.
Microbiome Composition and Function in Aquatic Vertebrates: Small Organisms Making Big Impacts on Aquatic Animal Health
This review examines how microbiomes (communities of microorganisms) function in fish and marine mammals, and how environmental stressors like microplastics can disrupt them. Microplastics in water can alter the natural balance of beneficial microbes in aquatic animals, potentially affecting their health and the safety of seafood. Understanding these disruptions matters because changes in fish microbiomes could affect the quality and safety of the fish that end up on our plates.
Microplasts in Freshwater Fish – Problems and Challenges
This review examines microplastic contamination of freshwater fish, covering ingestion evidence from over 150 species, the mechanisms of accumulation in gastrointestinal and other tissues, potential health impacts, and challenges in standardizing quantification methodologies.
Small fish, big discoveries: zebrafish shed light on microbial biomarkers for neuro-immune-cardiovascular health
This review highlighted how zebrafish serve as a powerful model for studying gut microbiome links to cardiovascular, neurological, and immune health, identifying microbial biomarkers that could inform future research on environmental stressor impacts including microplastic exposure.
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.
Global analysis of the adverse effects of micro- and nanoplastics on intestinal health and microbiota of fish
This large-scale analysis combined data from 118 studies to assess how micro- and nanoplastics affect fish gut health. The results show that these particles generally damage the intestinal lining, weaken immune defenses, and disrupt digestive function in fish. Younger fish and certain plastic types like PVC caused the most harm, highlighting that the specific characteristics of the plastic particles matter for understanding their toxicity.
Within-species variation in the gut microbiome of medaka ( Oryzias latipes ) is driven by the interaction of light intensity and genetic background
This study found that gut microbiome composition in medaka fish is shaped by the interaction between genetic background and light intensity, with fishing-like selective pressure reducing bacterial richness under low-light conditions, though this did not affect growth rates.
Connection between the Gut Microbiota of Largemouth Bass (Micropterus salmoides) and Microbiota of the aquaponics system Environment
Researchers investigated the relationship between gut microbiota composition in largemouth bass and the presence of microplastics in their digestive tracts, finding that microplastic-exposed fish showed distinct microbial community profiles. Certain bacterial taxa associated with plastic degradation were enriched in fish with higher microplastic burdens, suggesting gut microbiota adapt to plastic ingestion.
Effects of environmental factors on host-microbiota interactions in the guts of aquatic organisms: A review
This review synthesizes how environmental stressors — including microplastics, heavy metals, photoperiod, and aquaculture feed additives — alter gut microbiota in fish and aquatic invertebrates, identifying common patterns of microbial disruption and compromised gut barrier integrity.
Histomorphological Changes in Fish Gut in Response to Prebiotics and Probiotics Treatment to Improve Their Health Status: A Review
This review summarizes how prebiotics and probiotics, beneficial supplements added to fish feed, can improve gut health and disease resistance in farmed fish. A healthy gut microbiome is critical for nutrient absorption and immune defense in fish. While not directly about microplastics, the research is relevant because microplastics are known to disrupt gut bacteria in aquatic organisms, and probiotics may help counteract some of those effects.