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鱼类热值是指鱼体的各种干物质在完全燃烧后释放出的热量值。它是鱼类积累其环境能量能力的反映，也是衡量水域生态系统中生产力转化效率的指标之一。本文通过对鱼类及其各种器官的热值比较，主要分析了水温对鱼类能量积累的影响及种间的差异。
The calorific value of fish refers to the calorific value released by the various dry matter of the fish after it has been completely burned. It is a reflection of the fish’s ability to accumulate their environmental energy and is also one of the indicators to measure the productivity of productivity in a watershed ecosystem. In this paper, we compare the calorific value of fish and its various organs, and mainly analyze the effect of water temperature on fish energy accumulation and differences among species.