Effects of salinity stress on osmotic pressure, free amino acids, and immune-associated parameters of the juvenile Chinese mitten crab, Eriocheir sinensis

Yang, Ziyi; Zhu, Liangliang; Zhao, Xuejian; Cheng, Yongxu

doi:10.1016/j.aquaculture.2021.737776

Cited by 22 publications

(26 citation statements)

References 38 publications

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“…The concentration of Na + and Clwas increased with salinity enhancement from 10‰ to 40‰ in U. unicinctus coelomic fluid. This trend indicates the passive entry of Na + and Clinto the worm which is consistent with other aquatic animals (Tian et al, 2020;Yang et al, 2022).…”

Section: Effects Of Salinity On Coelomic Fluid Biochemical Indicessupporting

confidence: 88%

“…A previous study of marine leeches revealed the juvenile was more sensitive to salinity stress than the adult (Kua et al, 2014). Chinese mitten crab also demonstrated different responses between adults and juveniles (Yang et al, 2022;Zhao et al, 2016). Conversely, the investigation of the influence of salinity on juveniles is important for the U. unicinctus aquaculture industry.…”

Section: Introductionmentioning

confidence: 97%

“…The instability of salinity challenges the homeostasis of organisms. Salinity can affect the distribution (Kneib, 1984;Conde et al, 2013), physiology (Zhang et al, 2014;Falconer et al, 2019;Yang et al, 2022), and reproduction (Deschaseaux et al, 2010) of intertidal species, which also employ physiological strategies to maintain function in rapid salinity fluctuation. Therefore, intertidal species, especially sedentary species and benthic animals in intertidal environments have drawn increasing attention for salinity acclimation investigation (Falconer et al, 2019;Yang et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Salinity is a fundamental factor affecting the normal growth of aquatic organisms. Salinity alterations can significantly affect physiological activity of aquatic organisms, such as osmolality regulation, antioxidant enzyme system, as well as nonspecific immune enzyme activities including Na + /K + -ATPase, superoxide dismutase (SOD), acid phosphatase (ACP), and alkaline phosphatase (ALP) (Kültz, 2015;Liu et al, 2017;Tian et al, 2020;Yang et al, 2022). Rapid salinity changes result in the generation of excessive reactive oxygen species (ROS) in marine species (Lushchak, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In addition, blood biochemical parameters are often used to evaluate health status (Edsall, 1999;Li et al, 2011). Several studies indicate that salinity has a significant effect on blood physiological indices of aquatic organisms (Jarvis and Ballantyne, 2003;Xu et al, 2008;Zarejabad et al, 2010;Tian et al, 2020;Yang et al, 2022). Conversely, the intestines of aquatic organisms play significant roles in osmotic regulation by dynamically regulating water/ salt absorption and ion exchange under salinity stress (Giffard-Mena et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Salinity on the Growth, Physiological Characteristics, and Intestinal Microbiota of the Echiura Worm (Urechis unicinctus)

et al. 2022

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Intertidal biota is subjected to significant fluctuations in salinity. Urechis unicinctus, a typical species thriving in intertidal sediments, have relatively simple anatomy structure and therefore could be considered as an ideal species for salinity acclimation. Moreover, due to the high nutrients, U. unicinctus has become an emerging aquaculture species in China. In this study, we investigated the effects of salinity on the growth performance, coelomic fluid biochemical indices, antioxidant enzyme system, Na+/K+-ATPase, and non-specific immune enzyme activities, as well as intestinal microbiota composition of this species in an 8-week experiment. The results indicated U. unicinctus is a euryhaline species that can tolerate salinities from 15‰ to 40‰ and demonstrated the highest growth performance at 30‰. Physiological characteristic analyses of coelomic fluid and intestines indicated that the salinity range of 15‰ to 30‰ is more suitable, while 10‰ and 40‰ salinity ranges seem unsuitable for juvenile U. unicinctus. Furthermore, intestinal microbiota analysis indicated salinity had a significant effect on the composition structure. KEGG pathway analysis indicated that antioxidant related metabolic pathways and amino acid metabolic pathways may play important roles in gut microbiota under salinity stress. Comprehensive analysis of intestinal bacteria and enzyme activities indicated Unidentified Rhodobacteraceae, Vibrio, and Shimia may play important roles in high salinity acclimation, while Legionellaceae may act as important microbiota in low salinity acclimation. Moreover, Ruminococcus, Oscillospira, Lachnospiraceae, Clostridiales, and S24-7 showed negative correlations with the antioxidant and nonspecific immune enzymes, indicating that these bacteria can be considered as important candidates of probiotics for U. unicinctus aquaculture industry. The findings of this study will extend our understanding of the effects of salinity on the growth and health of U. unicinctus and contribute to a better understanding of the salinity acclimation strategies of organisms in intertidal zones.

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Section: Effects Of Salinity On Coelomic Fluid Biochemical Indicessupporting

confidence: 88%

Section: Introductionmentioning

confidence: 97%