人造珊瑚礁周围的海草生产对人类压力因素具有抵抗力
Mona A Andskog1,2, Craig Layman3, Jacob E Allgeier1
1Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA.
Proceedings. Biological sciences
|July 26, 2023
概括
人造珊瑚礁 (ARs) 促进海草生产和生态系统服务,即使有污染和渔业等人类影响. 这些珊瑚礁增强了鱼类的排泄,使海草肥沃,并支持渔业和碳捕获.
科学领域:
- 海洋生态海洋生态学
- 生态系统服务生态系统服务
- 恢复生态恢复生态学
背景情况:
- 在海草床的初级生产支持关键的生态系统服务,如碳捕获和渔业.
- 人造珊瑚礁 (ARs) 在渔业管理中得到利用,通过鱼类排泄物潜在地提高了初级产量.
- 海草床面临人类营养投入和渔业减少营养循环的威胁.
研究的目的:
- 调查同时存在的压力因素 (污水丰富和渔业) 如何影响ARs.附近的海草产量.
- 了解不同地区在人类综合影响下推动海草生产的机制.
- 评估AR在压力下维持生态系统服务中的作用.
主要方法:
- 在海地和巴哈马进行了一项长期实验,涉及人类主导和影响较小的地区.
- 在ARs.周围应用了污水丰富和捕捞压力的非直角梯度.
- 基于特征的海草和生态系统过程的测量被整合起来来评估生产.
主要成果:
- ARs 持续增加人均海草产量.
- 尽管生产驱动因素发生了重大变化,但ARs仍然保持了生态系统规模的生产.
- 与预期相反,污水丰富和渔业对海草生产的联合影响是附加的.
结论:
- 海草生态系统对人类压力因素的联合表现出很高的抵抗力.
- 即使在退化环境中,ARs也有效地促进了基本的生态系统服务,包括渔业支持和碳封存.
- 研究结果支持使用ARs作为人类影响的海洋系统的保护工具.
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