This review provides an overview of the research progress on the asphyxiation point of fish,of-fering insights and references for the mutual comparison of fish asphyxiation points.A total of 235 relevant lit-erature pieces on fish asphyxiation points were collected and summarized,and data from 204 fish species were analyzed.The study delved into the distribution of factors influencing fish asphyxiation points,the primary fac-tors affecting these points,and the main reasons for variations in fish tolerance to low oxygen.The quartile points of the asphyxiation points for the 204 fish species were 0.43,0.75,and 1.14 mg·L-1.Body weight and temperature were identified as the main factors influencing asphyxiation points,with fluctuations in metabolic rate being the primary reason for changes in fish asphyxiation points.Additionally,an analysis of experimental conditions revealed that experimental errors could impact the results of asphyxiation point measurements.The fish asphyxiation point is a crucial indicator for evaluating fish tolerance to low oxygen.The establishment of a more standardized experimental approach and the construction of a comprehensive platform for fish asphyxia-tion point data,along with a refinement of the understanding of variations in asphyxiation points under different conditions,will provide theoretical support and assistance for aquaculture management and the live transporta tion of aquatic products.
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