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20 resultsShowing papers similar to Effects of different temperatures on Leiocassis longirostris gill structure and intestinal microbial composition
ClearIntegrated Transcriptome and 16S rDNA Analyses Reveal That Transport Stress Induces Oxidative Stress and Immune and Metabolic Disorders in the Intestine of Hybrid Yellow Catfish (Tachysurus fulvidraco♀ × Pseudobagrus vachellii♂)
Researchers found that simulated transport stress in hybrid yellow catfish triggered oxidative stress, immune dysregulation, and metabolic disorders in the intestine, accompanied by shifts in gut microbiota composition, with effects intensifying over 16 hours and only partially recovering after 96 hours.
Cold-water coral mortality under ocean warming is associated with pathogenic bacteria
Researchers studied cold-water coral mortality during ocean warming events, finding that elevated temperatures promoted colonization by pathogenic bacteria that caused tissue necrosis. The findings link warming-driven immune suppression in corals with increased vulnerability to bacterial infection, suggesting that climate change will increase disease-related mortality in cold-water coral ecosystems.
The Immune System in Antarctic and Subantarctic Fish of the Genus Harpagifer Is Affected by the Effects of Combined Microplastics and Thermal Increase
This study examined how rising ocean temperatures and microplastic exposure affect the immune systems of Antarctic and subantarctic fish of the genus Harpagifer, which are particularly vulnerable due to their ecological specialization. Combined climate and MP stress altered immune gene expression, suggesting these fish face compounding threats from global change.
Variations and Interseasonal Changes in the Gut Microbial Communities of Seven Wild Fish Species in a Natural Lake with Limited Water Exchange during the Closed Fishing Season
Researchers analyzed the gut bacteria of seven wild fish species in Chaohu Lake, China, across all four seasons and found significant differences in microbial communities between species and across seasons. Environmental factors like water temperature and dissolved oxygen levels were key drivers of these microbial shifts. The study provides a baseline understanding of how natural conditions shape the gut health of wild freshwater fish populations.
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.
Effect of Probiotic Supplimentations on the Gut Histoarchitecture of Stinging Catfish, Heteropneustes fossilis
This aquaculture study evaluated the effects of probiotic supplementation on gut histology in stinging catfish, finding that probiotics improved intestinal morphology—relevant to understanding how gut health modifications may influence susceptibility to microplastic-induced gastrointestinal damage.
Increase in temperature increases ingestion and toxicity of polyamide microplastics in Nile tilapia
Researchers found that higher water temperatures caused Nile tilapia fish to swallow significantly more microplastics and suffer worse health effects, including blood abnormalities, gill damage, and intestinal injury. At the highest temperature tested, fish ingested over three times more plastic particles than at normal temperatures. This study suggests that as climate change warms waterways, fish may accumulate more microplastics, increasing the risk of human exposure through seafood.
The effects of exposure to microplastics on grass carp (Ctenopharyngodon idella) at the physiological, biochemical, and transcriptomic levels
Researchers exposed grass carp to microplastics at two concentrations for 21 days and observed liver damage, inhibited growth, and increased oxidative stress. Transcriptome analysis revealed over 1,500 differentially expressed genes related to immune response, metabolism, and cellular stress pathways. The study suggests that microplastic exposure can trigger broad physiological and molecular disruptions in freshwater fish.
Partial immune responses in Sichuan bream (Sinibrama taeniatus) after starvation
Researchers found short-term starvation in Sichuan bream induced innate immunity while suppressing adaptive immunity, showing nutritional stress alters fish immune balance.
Physiological response of freshwater crayfish, Astacus leptodactylus exposed to polyethylene microplastics at different temperature
Freshwater crayfish exposed to polyethylene microplastics showed liver stress, disrupted blood chemistry, and weakened immune responses, with higher temperatures making the effects worse. The combination of microplastic exposure and warmer water caused greater damage to antioxidant defenses and enzyme activity than either stressor alone. As climate change raises water temperatures, aquatic organisms may become more vulnerable to microplastic toxicity, which could affect the safety of freshwater species consumed by humans.
An overview of climate-driven stress responses in striped catfish (Pangasianodon hypophthalmus) – prospects in aquaculture
This review covers the effects of climate change stressors — including temperature, salinity, and flooding — on striped catfish aquaculture in Southeast Asia. It is not about microplastics and is not relevant to microplastic research.
Assessment of the Risk of Microplastics on Gill and Gut Health and Subsequent Pathogen Susceptibility in the Goldfish Model
Researchers assessed how polystyrene microplastics of two sizes affect gill and gut health in goldfish and their subsequent vulnerability to bacterial infection. They found that microplastic exposure caused tissue inflammation, increased immune gene expression, and thickened gill and intestinal structures. Notably, exposure to smaller 0.5-micrometer microplastics significantly reduced fish survival when challenged with a bacterial pathogen, indicating that microplastics can compromise immune defenses in fish.
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.
Adverse effects of polystyrene microplastics in the freshwater commercial fish, grass carp (Ctenopharyngodon idella): Emphasis on physiological response and intestinal microbiome
Researchers exposed grass carp to different sizes and concentrations of polystyrene microplastics for up to 14 days, followed by a depuration period, and assessed physiological and intestinal microbiome effects. The study found that microplastics caused histological damage, oxidative stress, and shifts in gut microbial communities, with smaller particles and higher concentrations producing more severe effects.
Concurrent impacts of polystyrene nanoplastic exposure and Aeromonas hydrophila infection on oxidative stress, immune response and intestinal microbiota of grass carp (Ctenopharyngodon idella)
Researchers studied the combined effects of polystyrene nanoplastics and a bacterial infection on grass carp, a common freshwater fish. They found that nanoplastic exposure worsened the impact of the infection by increasing oxidative stress, suppressing immune responses, and disrupting the gut microbiome. The study suggests that nanoplastic pollution in waterways could make fish more vulnerable to disease by weakening their natural defenses.
Effects of polystyrene nanoplastics on oxidative stress, histopathology and intestinal microbiota in largemouth bass (Micropterus salmoides)
Researchers exposed largemouth bass — a commercially important freshwater fish — to polystyrene nanoplastics (tiny plastic particles 100 nanometers in size) for up to 19 days, finding tissue damage in the gills, liver, and intestines along with elevated markers of cellular stress. While growth was not significantly affected, the fish adjusted their gut microbiome in response, suggesting nanoplastics trigger adaptive but potentially harmful physiological changes.
Effects of Virgin Microplastics on Growth, Intestinal Morphology and Microbiota on Largemouth Bass (Micropterus salmoides)
Researchers found that exposure to virgin microplastics at environmentally relevant concentrations impaired growth, caused intestinal morphological damage, and altered gut microbiota composition in largemouth bass, suggesting that microplastic ingestion poses health risks in commercially important aquaculture species.
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.
Cold-water coral mortality under ocean warming is associated with pathogenic bacteria
Researchers experimentally exposed deep-sea cold-water corals to elevated temperatures and found that a warming of just 3°C or more caused significant coral death, with microbiome analysis suggesting that pathogenic bacteria moved in as temperatures rose. The results indicate these reef-forming corals are highly sensitive to ocean warming, with survival likely depending on whether local deep-ocean temperatures stay below a 3°C increase.
Microplastic exposure induces structural hyperplasia in the gill tissue of grass carp (Ctenopharyngodon idellus) through immunosuppression, metabolic disruption, and structural damage
Researchers examined how polystyrene microplastics affect the gill tissue of grass carp at two concentrations. They found that higher microplastic exposure caused significant structural damage to gills, activated inflammatory pathways, triggered oxidative stress, and promoted abnormal cell proliferation. The study suggests that microplastics can induce structural hyperplasia in fish gills through combined immunosuppression, metabolic disruption, and tissue damage mechanisms.