Influence of water temperature and salinity on standard metabolism of Cipangopaludina cathayensis and Bellamya aeruginosa

Sun, Luyu; Wen, Xiaoman; Yu, Nengwang; Chen, Liqiao

doi:10.3724/sp.j.1118.2012.00275

Cited by 1 publication

(3 citation statements)

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“…Previous studies have found that high-temperature stress has many adverse effects on freshwater mollusks [ 5 , 18 , 19 , 20 , 21 ] and is a key factor that causes mass mortality [ 21 ]. To date, few studies have focused on the adverse impacts of thermal stress on C. cathayensis [ 22 ]. Temperature is a crucial factor affecting the metabolism in C. cathayensis [ 22 ], and data show that 25 °C is the optimal temperature for C. cathayensis .…”

Section: Introductionmentioning

confidence: 99%

“…To date, few studies have focused on the adverse impacts of thermal stress on C. cathayensis [ 22 ]. Temperature is a crucial factor affecting the metabolism in C. cathayensis [ 22 ], and data show that 25 °C is the optimal temperature for C. cathayensis . The increase in average water temperatures greatly increases the likelihood of exposure of mud snails to high-temperature stress.…”

Section: Introductionmentioning

confidence: 99%

“…However, the effects of high-temperature stress on the intestinal microbiota of C. cathayensis remain unclear. To address this gap, in this study, the effect of high-temperature stress on the gut microbiota composition and diversity in C. cathayensis was investigated by exposing C. cathayensis over 7 days to two different temperatures (control, 25 ± 1 °C; high temperature, 32 ± 1 °C) [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Gut Microbiome in the Mud Snail Cipangopaludina cathayensis in Response to High-Temperature Stress

Cheng

Liu

et al. 2022

Animals

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The mud snail Cipangopaludina cathayensis is a widely distributed species in China. Particularly in Guangxi province, mud snail farming contributes significantly to the economic development. However, global warming in recent decades poses a serious threat to global aquaculture production. The rising water temperature is harmful to aquatic animals. The present study explored the effects of high temperature on the intestinal microbiota of C. cathayensis. Snail intestinal samples were collected from the control and high-temperature groups on days 3 and 7 to determine the gut microbiota composition and diversity. Gut bacterial community composition was investigated using high-throughput sequencing of the V3–V4 region of bacterial 16S rRNA genes. Our results suggested that thermal stress altered the gut microbiome structure of C. cathayensis. At the phylum level, Proteobacteria, Bacteroidetes, and Firmicutes were dominant in C. cathayensis gut microbiota. The T2 treatment (32 ± 1 °C, day 7) significantly decreased the relative abundance of Firmicutes, Actinobacteria, and Deinococcus-Thermus. In T2, the abundance of several genera of putatively beneficial bacteria (Pseudomonas, Aeromonas, Rhodobacter, and Bacteroides) decreased, whereas the abundance of Halomonas—a pathogenic bacterial genus—increased. The functional prediction results indicated that T2 treatment inhibited some carbohydrate metabolism pathways and induced certain disease-related pathways (e.g., those related to systemic lupus erythematosus, Vibrio cholerae infection, hypertrophic cardiomyopathy, and shigellosis). Thus, high temperature profoundly affected the community structure and function of C. cathayensis gut microbiota. The results provide insights into the mechanisms associated with response of C. cathayensis intestinal microbiota to global warming.

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