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61,005 resultsShowing papers similar to Comparison of exoskeleton microbial communities of co-occurring native and invasive crayfish species
ClearComparison 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.
Microplastic burden in native (Cambarus appalachiensis) and non-native (Faxonius cristavarius) crayfish along semi-rural and urban streams in southwest Virginia, USA
Researchers conducted the first comparative study of microplastic contamination in native and non-native crayfish species along semi-rural and urban streams in southwest Virginia. They found significantly higher microplastic concentrations in urban surface water compared to semi-rural areas, and the non-native crayfish species showed greater microplastic body burden than the native species. The findings suggest that urbanization influences microplastic exposure in freshwater organisms and that invasive species may accumulate plastics differently than native ones.
Effects of nanoplastic exposure on the immunity and metabolism of red crayfish (Cherax quadricarinatus) based on high-throughput sequencing
Researchers examined nanoplastic effects on red crayfish using transcriptomics and microbiome analysis, finding that high concentrations suppressed antioxidant and immune responses while significantly altering gut microbial communities.
Insights into the Gut Microbiota of the Freshwater Crab Sinopotamon planum across Three Seasons and Its Associations with the Surrounding Aquatic Microbiota
Researchers characterized the gut microbiota of freshwater crab Sinopotamon planum across three seasons, finding seasonal shifts in microbial community composition that correlated with changes in surrounding aquatic microbiota and environmental conditions.
Microplastics and invasive crayfish: emerging interactions and ecological implications from three coexisting species in a subalpine lake
Researchers compared microplastic uptake in three coexisting invasive crayfish species from Lake Maggiore, Italy, finding no significant interspecific differences but observing that Faxonius limosus showed the highest average MP concentration, with most MPs being polyester or polyacrylate fibers under 1 mm suggesting domestic sources. The study provides the first evidence of MP uptake in F. limosus and suggests invasive crayfish may serve as agents of MP removal and bioindicators for environmental monitoring.
Different geographical environment can affect the fatty acid compositions of the Red Swamp Crayfish (Procambarus clarkii) through the intestinal flora
Not relevant to microplastics — this study examines how geographic environment and gut microbiota influence the fatty acid composition and nutritional quality of red swamp crayfish (Procambarus clarkii).
The invasive red swamp crayfish (Procambarus clarkii) as a bioindicator of microplastic pollution: Insights from Lake Candia (northwestern Italy)
Researchers investigated whether the invasive red swamp crayfish could serve as a bioindicator species for tracking microplastic pollution in freshwater ecosystems. They found the same types of microplastics in the crayfish digestive tracts as in surrounding water and sediment samples from Lake Candia in Italy. The study suggests that monitoring microplastics in crayfish could be a practical way to assess plastic contamination levels in lakes and rivers.
Toxicity effects of microplastics individually and in combination with Aeromonas hydrophila on freshwater crayfish (Astacus leptodactylous)
Researchers investigated the combined effects of microplastics and the pathogenic bacterium Aeromonas hydrophila on freshwater crayfish over 30 days. The study found that co-exposure to microplastics and the pathogen caused more severe disruptions to blood biochemistry, liver oxidative balance, and immune function than either stressor alone, suggesting microplastics can amplify pathogen-related damage.
Biological invasions alter environmental microbiomes: a meta-analysis
This meta-analysis of publicly available data found that biological invasions consistently reduce microbial diversity and shift the structure of environmental microbial communities. The findings suggest that invasive species' ecological damage extends beyond visible plant and animal communities to the microbial level, making their impact more pervasive than previously recognized.
Integrated Metagenomic and Metabolomic Analysis on Two Competing Mussels, Mytella strigata and Perna viridis, in China
Researchers used integrated metagenomic and metabolomic analysis to compare the invasive mussel Mytella strigata with the native Perna viridis in China, finding that the invasive species exhibits distinct gut microbial communities and metabolic profiles that may contribute to its competitive advantage.
Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient
Researchers found microplastics in the digestive tracts of invasive signal crayfish at every site along a stream gradient from rural to urban, with concentrations rising as more of the upstream area was developed — and detected microplastics in crayfish tail muscle tissue for the first time. Because crayfish are important prey for many species, their accumulation of microplastics in both gut and tissue suggests these pollutants can move through freshwater food chains more broadly than previously recognized.
More deterministic assembly constrains the diversity of gut microbiota in freshwater snails
Researchers compared the gut microbiota assembly processes of invasive and native freshwater snails coexisting at multiple sites in southern China. They found that invasive snails exhibited more deterministic gut microbiome assembly with lower microbial diversity, which may contribute to their competitive advantage. The study provides insights into how gut microbial community dynamics may influence the success of invasive species in freshwater ecosystems.
Small-scale phenotypic differentiation along complex stream gradients in a non-native amphipod
Researchers documented how a non-native freshwater crustacean shows measurable differences in body size and life history traits across short distances within the same stream, suggesting that even recently introduced species can rapidly adapt to local environmental conditions with potential consequences for ecosystem functions like leaf decomposition.
Microplastic pollution in water, sediment, and specific tissues of crayfish (Procambarus clarkii) within two different breeding modes in Jianli, Hubei province, China
Microplastics were found in water (1.3–2.5 particles/L), sediment, and crayfish tissues (gills, stomach, gut, flesh) in both pond and rice-crayfish co-culture systems in China, with gill tissue showing the highest per-individual accumulation and flesh contamination persisting after purification in clean water.
The effects of exposure to microplastics and pollutants on the arthropod microbiome
This thesis investigated how microplastics and other pollutants (pesticides, detergents, metals) affect the gut microbiome of freshwater invertebrates. Disruption of the host-microbiome relationship by microplastics could impair immune function and overall health in aquatic organisms that form important parts of the food web.
Effects of microplastics on Daphnia-associated microbiomes in situ and in vitro
This study investigated how microplastic exposure alters the microbiome associated with Daphnia in freshwater, finding shifts in bacterial community composition that may affect host health and ecological function. The results suggest that microplastics can indirectly harm zooplankton by disrupting their microbial symbionts.
Plastic Debris in the Stomach of the Invasive Signal Crayfish Pacifastacus leniusculus from a Baltic Coastal River
Researchers examined the stomach contents of invasive signal crayfish (Pacifastacus leniusculus) for plastic debris, finding ingested plastic fragments and fibres in a proportion of sampled individuals. The study identifies signal crayfish as accumulators of microplastics in freshwater food webs, with potential implications for predators that consume crayfish in affected river systems.
Microplastics in feed cause sublethal changes in the intestinal microbiota and a non-specific immune response indicator of the freshwater crayfish Procambarus clarkii (Decapoda: Cambaridae)
Researchers fed freshwater crayfish a diet containing recycled PET microplastics and examined the effects on gut bacteria and immune function. They found that microplastic exposure caused an imbalance in intestinal microbiota, increasing potentially harmful bacteria while decreasing beneficial species. The study also showed a weakened immune response, suggesting that microplastic contamination in aquatic food sources can compromise the health of the organisms that consume them.
Association between the skin microbiome and MHC class II diversity in an amphibian
Researchers examined how genetic background and MHC class II diversity shape the skin microbiome of amphibians, finding that host genotype influences microbial community composition in ways that may affect disease resistance and environmental adaptation.
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.
Microplastic exposure across trophic levels: effects on the host–microbiota of freshwater organisms
Researchers examined how microplastic exposure across trophic levels affects the gut microbiota of freshwater organisms, finding that microplastics alter microbial community composition and that effects can transfer through food web interactions.
Probiotics, Prebiotics, and Synbiotics Utilization in Crayfish Aquaculture and Factors Affecting Gut Microbiota
This review examines how probiotics, prebiotics, and synbiotics can improve gut health and disease resistance in farmed crayfish. These supplements help maintain beneficial gut bacteria, boost immune function, and reduce the need for antibiotics in aquaculture. The research is relevant to microplastic concerns because healthy gut microbiomes in aquatic organisms may be more resilient to disruption from environmental contaminants like microplastics.
The interplay between host-specificity and habitat-filtering influences sea cucumber microbiota across an environmental gradient of pollution
Researchers examined how environmental pollution gradients influence intra-specific variation in microbiota diversity and structure across skin, gut, sediment, and water communities associated with sea cucumbers. They found that both host-specificity and habitat-filtering interact to shape microbial communities along pollution gradients, with animal-associated microbiota showing distinct patterns compared to environmental communities.
Accumulation of polyethylene microplastics induces oxidative stress, microbiome dysbiosis and immunoregulation in crayfish
Researchers exposed crayfish (Procambarus clarkii) to polyethylene microplastics through their diet for 21 days and found that particles accumulated in the intestine, hepatopancreas, gills, and blood, persisting even after a week of depuration in clean water. The accumulated microplastics caused oxidative stress, disrupted the gut microbiome, and altered immune regulation. The study suggests that microplastic exposure may compromise the health and immune defenses of commercially important freshwater crustaceans.