Combined effects of temperature and emersion-immersion cycles on metabolism and bioenergetics of the Pacific oyster Crassostrea (Magallana) gigas

Bruhns, Torben; Timm, Stefan; Feußner, Nina; Engelhaupt, Sonja; Labrenz, Matthias; Wegner, Mathias; Sokolova, Inna M.

doi:10.1016/j.marenvres.2023.106231

Cited by 11 publications

(3 citation statements)

References 124 publications

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“…from the M. edulis-M. trossulus hybrid zone, Tau:Gly ratio was ~2-3 at salinity 15 (Scholz, 1987;Haider et al, 2020). A Tau:Gly ratio of ~2.5 was reported in the hard shell clam Mercenaria mercenaria from the western Atlantic (salinity 30-32) (Jeffries, 1972), whereas in Crassostrea gigas from the Wadden Sea (salinity 30), this ratio reached 8-53 (Haider et al, 2020;Bruhns et al, 2023).…”

Section: Discussionmentioning

confidence: 93%

“…Higher Tau:Gly ratios could indicate a cellular defense mechanism aimed at reducing cellular stress by protecting the mitochondria. This hypothesis finds indirect support in the observation that extreme stress, such as prolonged anoxia or hypoxia combined with elevated temperatures leading to mortality, correlates with the breakdown of this protective mechanism and a decrease in Tau:Gly ratios (Haider et al, 2020;Bruhns et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

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Species-specific metabolome changes during salinity downshift in sub-Arctic populations of Mytilus edulis and M. trossulus

Sokolova,

Kovalev,

Timm

et al. 2024

Front. Mar. Sci.

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The blue mussels Mytilus edulis and Mytilus trossulus are ecologically and economically important species distributed widely across the Northern Hemisphere. Understanding their behavioral and physiological disparities is crucial for assessing their ecological success and aquacultural value. The recent finding of non-native M. trossulus in the White Sea raises concerns regarding its potential competition with native M. edulis and its prospective spread in light of climate change and surface water freshening. We investigated the responses of M. edulis and M. trossulus to salinity variations by examining shell closure thresholds and tissue levels of 35 metabolic intermediates in mussels acclimated to different salinities (25, 16, and 10). The salinity threshold for valve closure was similar in both studied species, but M. trossulus consistently opened at lower salinities (by 0.2–0.7 practical salinity units) compared to M. edulis. Salinity-induced changes in metabolite levels were similar between the two species. Taurine emerged as the dominant osmolyte, comprising over 50% of the total free amino acid pool, with aspartate and glycine contributing 15–30%. Concentrations of taurine, glycine, and total free amino acids declined with decreasing salinity. Taurine to glycine ratios were higher in M. edulis and increased in both species with declining salinity. Acclimation salinity significantly influenced urea cycle intermediates and methionine sulfoxide content, a cellular biomarker of amino acid oxidation. Species-specific differences were observed in purine metabolism, with higher levels of GMP and AMP found in M. edulis. Likewise, aromatic amino acids and histidine levels were higher in M. edulis compared to M. trossulus. However, no evidence suggests superior adaptation of M. trossulus metabolism to hypoosmotic stress compared to M. edulis. Further research is necessary to elucidate the functional implications of subtle metabolic differences between these Mytilus congeners and their ecological consequences in changing marine environments.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Species-specific metabolome changes during salinity downshift in sub-Arctic populations of Mytilus edulis and M. trossulus

Sokolova,

Kovalev,

Timm

et al. 2024

Front. Mar. Sci.

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“… The current HACCP system focuses on risk prevention, and the risks in the process cannot be identified and resolved in time. However, dynamic changes such as temperature, humidity, and physiology require continuous monitoring and dynamic adjustment [ 16 ]. The implementation of HACCP requires specialized knowledge and skills.…”

Section: Introductionmentioning

confidence: 99%

Flexible Sensing Enabled Nondestructive Detection on Viability/Quality of Live Edible Oyster

Liu,

Qu,

Zhang

et al. 2024

Foods

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Environmental and physiological fluctuations in the live oyster cold chain can result in reduced survival and quality. In this study, a flexible wireless sensor network (F-WSN) monitoring system combined with knowledge engineering was designed and developed to monitor environmental information and physiological fluctuations in the live oyster cold chain. Based on the Hazard Analysis and Critical Control Point (HACCP) plan to identify the critical control points (CCPs) in the live oyster cold chain, the F-WSN was utilized to conduct tracking and collection experiments in real scenarios from Yantai, Shandong Province, to Beijing. The knowledge model for shelf-life and quality prediction based on environmental information and physiological fluctuations was established, and the prediction accuracies of TVB-N, TVC, and pH were 96%, 85%, and 97%, respectively, and the prediction accuracy of viability was 96%. Relevant managers, workers, and experts were invited to participate in the efficiency and applicability assessment of the established system. The results indicated that combining F-WSN monitoring with knowledge-based HACCP modeling is an effective approach to improving the transparency of cold chain management, reducing quality and safety risks in the oyster industry, and promoting the sharing and reuse of HACCP knowledge in the oyster cold chain.

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TL-iTransformer: Revolutionizing sea surface temperature prediction through iTransformer and transfer learning

Jia,

Guan,

Xue

2024

Earth Sci Inform

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Combined effects of temperature and emersion-immersion cycles on metabolism and bioenergetics of the Pacific oyster Crassostrea (Magallana) gigas

Cited by 11 publications

References 124 publications

Species-specific metabolome changes during salinity downshift in sub-Arctic populations of Mytilus edulis and M. trossulus

Species-specific metabolome changes during salinity downshift in sub-Arctic populations of Mytilus edulis and M. trossulus

Flexible Sensing Enabled Nondestructive Detection on Viability/Quality of Live Edible Oyster

TL-iTransformer: Revolutionizing sea surface temperature prediction through iTransformer and transfer learning

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