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April 30, 2026Journal of Fish Biology

Analysis of hepatic and serum responses to acute cold stress in juvenile yellowfin tuna Thunnus albacares (Bonnaterre 1788)

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Authors

JHJ HuangUniversity of Science and Technology of ChinaZFZhengyi FuSanya UniversityWWWei WangDalian Ocean University

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Implication

Randomized trial analyzes physiological responses to cold stress in juvenile yellowfin tuna, highlighting adaptive mechanisms.

Key Points

  • This study aims to understand the physiological responses of juvenile yellowfin tuna to acute cold stress at different temperatures.
  • Established cold stress groups (LT at 24°C, ULT at 18°C) and a control group (CG at 30°C) for juvenile T. albacares.
  • Collected samples at 0, 12, 24, and 36 hours for analysis.
  • Evaluated hepatic and serum responses using transcriptome sequencing, histopathological analysis, and serum biochemical assays.
  • Under 24°C, fish showed minor fluctuations in metabolic biomarkers and mild liver tissue damage, indicating cold tolerance.
  • At 18°C, significant enzyme activity fluctuations and histological damage were observed, including hepatocyte necrosis.
  • The study identified key activated pathways reflecting different physiological adaptations in response to varying cold stress levels.

Cite This Study

Huang et al. (2026) studied this question.

synapsesocial.com/papers/69f2f1be1e5f7920c6387635https://doi.org/10.1111/jfb.70455
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