What does this research mean for the field?

Procambarus clarkii exhibits substantially higher tolerance to combined salinity-pH and alkalinity stress compared to Macrobrachium nipponense due to protective metabolic reprogramming, making it the preferred species for cultivation in saline-alkaline waters. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To compare the physiological, antioxidant, and metabolomic responses of juvenile Procambarus clarkii and Macrobrachium nipponense exposed to combined salinity–pH and NaHCO3 alkalinity stress.

September 5, 2026AnimalsOpen Access

Comparative Physiological and Metabolomic Responses of Procambarus clarkii and Macrobrachium nipponense to Combined Salinity–pH and NaHCO3 Alkalinity Stress

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Authors

迟迟美丽 SCShun Cheng WJWenping Jiang

Discussion

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Overview

Comparative exposure study reveals higher saline-alkaline tolerance in Procambarus clarkii juveniles, indicating species-specific suitability for rice-farming systems.

Key Points

To compare the physiological, antioxidant, and metabolomic responses of juvenile Procambarus clarkii and Macrobrachium nipponense exposed to combined salinity–pH and NaHCO3 alkalinity stress.
Conducted two 96-hour bioassays using 540 juveniles per species (initial body lengths: 1.51 ± 0.16 cm for P. clarkii; 0.88 ± 0.03 cm for M. nipponense).
Assessed combined salinity–pH stress across three conditions (0‰ at pH 7.4, 15.0‰ at pH 9.0, and 25.0‰ at pH 10.0) alongside NaHCO3 alkalinity stress at 0, 10, and 20 mmol/L.
Quantified survival, immune and oxidative stress enzymes (superoxide dismutase, acid phosphatase, alkaline phosphatase, and malondialdehyde), and metabolomic profiles via KEGG pathway enrichment.
Under salinity–pH stress (control, moderate, high), survival was 100%, 72.23%, and 53.33% for P. clarkii compared to 93.33%, 61.13%, and 23.33% for M. nipponense.
Under alkalinity stress (0, 10, and 20 mmol/L), survival reached 92.22%, 82.22%, and 61.11% in P. clarkii versus 91.11%, 65.55%, and 46.67% in M. nipponense.
Increasing stress suppressed superoxide dismutase, acid phosphatase, and alkaline phosphatase and elevated malondialdehyde in both species; metabolomics revealed P. clarkii upregulated protective lipids, whereas M. nipponense depleted osmolytes and accumulated pro-apoptotic ceramides.

Cite This Study

迟美丽 et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4726b95aff0620ec2ee https://doi.org/10.3390/ani16172778

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September 5, 2026AnimalsOpen Access

Comparative Physiological and Metabolomic Responses of Procambarus clarkii and Macrobrachium nipponense to Combined Salinity–pH and NaHCO3 Alkalinity Stress

View Full Paper

Ask AI

Bookmark

Authors

迟迟美丽 SCShun Cheng WJWenping Jiang

Discussion

Member takes

Overview

Comparative exposure study reveals higher saline-alkaline tolerance in Procambarus clarkii juveniles, indicating species-specific suitability for rice-farming systems.

Key Points

To compare the physiological, antioxidant, and metabolomic responses of juvenile Procambarus clarkii and Macrobrachium nipponense exposed to combined salinity–pH and NaHCO3 alkalinity stress.
Conducted two 96-hour bioassays using 540 juveniles per species (initial body lengths: 1.51 ± 0.16 cm for P. clarkii; 0.88 ± 0.03 cm for M. nipponense).
Assessed combined salinity–pH stress across three conditions (0‰ at pH 7.4, 15.0‰ at pH 9.0, and 25.0‰ at pH 10.0) alongside NaHCO3 alkalinity stress at 0, 10, and 20 mmol/L.
Quantified survival, immune and oxidative stress enzymes (superoxide dismutase, acid phosphatase, alkaline phosphatase, and malondialdehyde), and metabolomic profiles via KEGG pathway enrichment.
Under salinity–pH stress (control, moderate, high), survival was 100%, 72.23%, and 53.33% for P. clarkii compared to 93.33%, 61.13%, and 23.33% for M. nipponense.
Under alkalinity stress (0, 10, and 20 mmol/L), survival reached 92.22%, 82.22%, and 61.11% in P. clarkii versus 91.11%, 65.55%, and 46.67% in M. nipponense.
Increasing stress suppressed superoxide dismutase, acid phosphatase, and alkaline phosphatase and elevated malondialdehyde in both species; metabolomics revealed P. clarkii upregulated protective lipids, whereas M. nipponense depleted osmolytes and accumulated pro-apoptotic ceramides.

Cite This Study

迟美丽 et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd4726b95aff0620ec2ee https://doi.org/10.3390/ani16172778

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