Synergetic impacts of turbulence and fishing reduce ocean biomass
biorxiv(2021)
摘要
A universal scaling relationship exists between organism abundance and body size[1][1],[2][2]. Within ocean habitats this relationship deviates from that generally observed in terrestrial systems[2][2]–[4][3], where marine macro-fauna display steeper size-abundance scaling than expected. This is indicative of a fundamental shift in food-web organization, yet a conclusive mechanism for this pattern has remained elusive. We demonstrate that while fishing has partially contributed to the reduced abundance of larger organisms, a larger effect comes from ocean turbulence: the energetic cost of movement within a turbulent environment induces additional biomass losses among the nekton. These results identify turbulence as a novel mechanism governing the marine size-abundance distribution, highlighting the complex interplay of biophysical forces that must be considered alongside anthropogenic impacts in processes governing marine ecosystems.
### Competing Interest Statement
The authors have declared no competing interest.
[1]: #ref-1
[2]: #ref-2
[3]: #ref-4
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要