Exploring the interactions between the gut microbiome and the shifting surrounding aquatic environment in fisheries and aquaculture: A review

Environmental Research, Год журнала: 2022, Номер 214, С. 114202 - 114202

Опубликована: Авг. 27, 2022

Язык: Английский

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Variable phylosymbiosis and cophylogeny patterns in wild fish gut microbiota of a large subtropical river

mSphere, Год журнала: 2025, Номер unknown

Опубликована: Март 28, 2025

ABSTRACT The persistence and specificity of fish host-microbial interaction during evolution is an important part exploring the symbiosis mechanism. However, it remains unclear how environmental host factors shape host-microbe symbiotic relationships in subtropical rivers with complex natural environments. Freshwater are consumers lakes considered keystone species maintaining stability food webs there. In this study, patterns mechanisms shaping gut microbiota community 42 from Pearl River, zone China, were investigated. results showed that a key driver diversification. Different taxonomic levels different degrees contribution to variation. Geographical location habitat type next most across fishes, followed by diet trait. Our emphasized stochastic processes (drift homogenizing dispersal) microbial assembly freshwater fishes middle lower reaches River. Phylosymbiosis evident at both global local levels, which jointly shaped including ecological or physiological filtration evolutionary processes. core co-evolutionary varying groups. We speculate genetic isolation variation facilitates heterogeneous selection (deterministic process), occurs host-core bacterium specificity. IMPORTANCE regarded as dominant lakes. Due their diverse feeding modes, significantly enhance trophic link nutrient recycling/retention aquatic habitats. For this, they often A significant nutrition essentially mediated microbiota, can tolerance fluctuations external resources improve efficiency nutrients extracted various sources. As bacterial symbionts have profound impact on development hosts, well overall fitness, critical answer question hosts maintain these benefits procuring inheriting vital symbionts, still largely unanswered, especially for fish. study provides new insights into relationship between wild microbiome, hidden diversity adaptation potential

Язык: Английский

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Seasonal and Regional Dynamics of the Intestinal Microbiota in Schizothorax nukiangensis from the Nujiang River

Animals, Год журнала: 2025, Номер 15(7), С. 961 - 961

Опубликована: Март 27, 2025

The dynamic alterations in intestinal microbiota can provide insights into the adaptive relationships between these microorganisms and their hosts response to environmental changes. Schizothorax nukiangensis is widely distributed throughout Nujiang River exhibits numerous unique adaptations. In this study, we collected samples of S. across different seasons regions within comprehensively elucidate diversity composition its using metagenomic technology. results indicated that Firmicutes Proteobacteria predominated at phylum level, while Priestia, Bacillus, Aeromonas were most abundant genera identified. Notably, relative abundance varied significantly regions. From autumn through spring summer, predominant shifted from Proteobacteria. Biomarker analysis revealed (including class bacilli Priestia Bacillus) exhibited a higher upstream group, where categories related amino acid metabolism carbohydrate enriched. Conversely, several potential pathogens, such as Saezia, Pantoea, Lelliotia, genera) showed an increased downstream groups, disease-related significant enrichment. Our findings enhance our understanding how adapts environment, providing valuable data support for conservation ecological security assessment River.

Язык: Английский

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Effectiveness assessment of using water environmental microHI to predict the health status of wild fish

Frontiers in Microbiology, Год журнала: 2024, Номер 14

Опубликована: Янв. 11, 2024

Aquatic wildlife health assessment is critically important for aquatic conservation. However, the of (especially wild animals) difficult and often accompanied by invasive survey activities delayed observability. As there growing evidence that environmental microbiota could impact status animals influencing their symbiotic microbiota, we propose a non-invasive method to monitor using index (microHI). it unknown whether this effective different ecotype groups animals. To answer question, took case study in middle Yangtze River studied water fish gut at community level, population level. The results showed microHI healthy group was higher than unhealthy levels, overall positively correlated with microHI, whereas baseline species-specific. Integrating these variations four (filter-feeding, scraper-feeding, omnivorous, carnivorous), only carnivorous microHI. Alcaligenaceae, Enterobacteriaceae, Achromobacter were most abundant health-negative-impacting phenotypes, had high positive correlations between sample environment group, significantly abundance carnivorous, filter-feeding, scraper-feeding ecotypes. Therefore, indicate just In River, Enterobacteriaceae (family level),

Язык: Английский

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Evaluation of phoxim toxicity on aquatic and zebrafish intestinal microbiota by metagenomics and 16S rRNA gene sequencing analysis

Environmental Science and Pollution Research, Год журнала: 2022, Номер 29(42), С. 63017 - 63027

Опубликована: Апрель 21, 2022

Язык: Английский

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The effects of quercetin and taxifolin on gut microbes, digestion enzymes, antioxidant and inflammatory-related gene expression in the Chinese sucker (Myxocyprinus asiaticus)

Aquaculture Reports, Год журнала: 2024, Номер 35, С. 102011 - 102011

Опубликована: Март 12, 2024

We aimed to investigate the effects of quercetin and taxifolin on gut health in Chinese sucker (Myxocyprinus asiaticus). Short-term exposure (96 h) was conducted by exposing 2.5 mg/L (Q2.5), 5 (Q5), 10 (Q10), (T2.5), (T5), (T10), their combination (quercetin taxifolin: mg/L+5 mg/L, QT). Then, we analyzed intestinal microorganisms, fat composition, digestive enzyme activities, antioxidant inflammatory-related gene expression. Both had an inhibitory effect flora, higher concentration, better effect. When compared quercetin, inhibited harmful bacteria more efficiently maintained abundance probiotics. T5 QT reduced content total cholesterol (T-CHO), triglycerides (TG) tissues. Q5 trypsin activity, while increased amylase (AMS) activity Q5, T5, expression GST, GPx4, SOD1 CAT intestine. The levels GST were than groups. IL1β, IL6, IL8, TNF-α, TNF-β, IL10. In summary, using alone would be beneficial with regards maintaining homeostasis flora increasing anti-inflammatory capacity tract. optimal application rate mg/L.

Язык: Английский

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Vertical habitat preferences shape the fish gut microbiota in a shallow lake

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Март 18, 2024

Understanding the interactions between fish gut microbiota and aquatic environment is a key issue for understanding microorganisms. Environmental microorganisms enter intestines through feeding, amount of invasion varies due to different feeding habits. Traditional habitat preferences are determined by morphology or behavior. However, little known about how behavior relative vertical structure in shallow lake influences microbiota. In our study, we used nitrogen isotopes measure trophic levels fish. Then high-throughput sequencing was describe composition environmental microbiota, FEAST (fast expectation-maximization microbial source tracking) method trace We investigated diversity guts their habitats Lake Sanjiao verified that sediments indeed played an important role assembly Then, analysis indicated water acted as primary sources half respectively. Furthermore, classified using data significant differences both function were observed groups with distinct preferences. The performance supervised unsupervised machine learning classifying actually exceeded classification species taxonomy level. Finally, described stability co-occurrence networks Interestingly, network seemed more stable pelagic than benthic Our results show main factor affecting advocated use surrounding reflect structure. This approach not only offers novel perspective factors, but also provides new methods ideas studying selection ecosystems.

Язык: Английский

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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

Microorganisms, Год журнала: 2024, Номер 12(4), С. 800 - 800

Опубликована: Апрель 16, 2024

The gut microbiota of fish is crucial for their growth, development, nutrient uptake, physiological balance, and disease resistance. Yet our knowledge these microbial communities in wild populations natural ecosystems insufficient. This study systematically examined the seven species Chaohu Lake, a fishing-restricted area with minimal water turnover, across four seasons. We found significant variations community structures among species. Additionally, we observed seasonal regional communities. Lake were predominantly composed phyla Firmicutes, Proteobacteria(Gamma), Proteobacteria(Alpha), Actinobacteriota, Cyanobacteria. At genus level, Aeromonas, Cetobacterium, Clostridium sensu stricto 1, Romboutsia, Pseudomonas emerged as most prevalent. A co-occurrence network analysis revealed that C. auratus, carpio, brachygnathus possessed more complex robust networks than H. molitrix, alburnus, ectenes taihuensis, A. nobilis. Certain groups, such Pseudomonas, both dominant keystone network. Our offers new approach studying natural, controlled environments. It an in-depth understanding living stable, limited exchange

Язык: Английский

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The Gut Microbiota of Farmed and Wild Brook Trout (Salvelinus fontinalis): Evaluation of Feed-Related Differences Using 16S rRNA Gene Metabarcoding

Microorganisms, Год журнала: 2023, Номер 11(7), С. 1636 - 1636

Опубликована: Июнь 22, 2023

The gut microbiota has become a topic of increasing importance in various fields, including aquaculture. Several fish species have been the subject investigations concerning intestinal microbiota, which compared different variables, portions, environment, and diet. In this study, farmed wild brook trout (Salvelinus fontinalis) were analyzed, wall content medial portion intestine considered separately. A total 66 (age class 2+) sampled, 46 20 trout, two years. Microbiota data obtained using 16S metabarcoding approach by analyzing V3-V4 hypervariable regions corresponding rRNA. showed that core these consist Proteobacteria (Alpha- Gammaproteobacteria), Actinobacteria, Firmicutes (Bacilli Clostridia), and, only for animals, Fusobacteria. latter taxon's presence is likely related to fishmeal-based diet administered trout. Indeed, alpha beta diversity analysis differences between fish. Finally, statistically significant composition observed walls contents fish, while no detected reared animals. Our work represents first study on with respect both specimens. Future studies might focus comparison our those pertaining other portions intestine.

Язык: Английский

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Microbiome and network analysis reveal potential mechanisms underlying Carassius auratus diseases: The interactions between critical environmental and microbial factors

Journal of Environmental Management, Год журнала: 2024, Номер 370, С. 122485 - 122485

Опубликована: Сен. 14, 2024

Язык: Английский

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