中温鱼类在海洋变暖中面临高能量需求和过热风险

1. 信息

2. 摘要

Body size and temperature set metabolic rates and the pace of life, yet our understanding of the energetics of large fishes is uncertain, especially of warm-bodied mesotherms, which can heavily influence marine food webs. We developed an approach to estimate metabolic heat production in fishes, revealing how routine energy expenditure scales with size and temperature from 1-milligram larvae up to 3-tonne megaplanktivorous sharks. We found that mesotherms use approximately four times more energy than ectotherms use and identified a scaling mismatch in which rates of heat production increase faster than heat loss as body size increases, with larger fish becoming increasingly warm bodied. This scaling imbalance creates an overheating predicament for large mesotherms, helping to explain their cooler biogeographies. Contemporary mesotherms face high fuel demands and overheating risks, which is a concern given their disproportionate demise during prior climate shifts.

3. 图表

4. 引用

@article{payne2026,
  author = {Nicholas L. Payne and Edward P. Snelling and Ignacio Peralta-Maraver and David E. Cade and Taylor K. Chapple and Alexandra G. McInturf and Yuuki Y. Watanabe and David W. Sims and Nuno Queiroz and Ivo da Costa and Lara L. Sousa and Jeremy A. Goldbogen and Haley R. Dolton and Andrew L. Jackson},
  title = {Mesothermic fishes face high fuel demands and overheating risk in warming oceans},
  journal = {Science},
  year = {2026},
  volume = {392},
  number = {6795},
  pages = {301-305},
  doi = {10.1126/science.adt2981},
  publisher = {American Association for the Advancement of Science (AAAS)},
}