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石油和天然气平台降低盆地无脊椎动物的多样性和食物网结构

Zelin Chen¹, Tom C Cameron¹, Elena Couce²

¹School of Life Sciences, University of Essex, Colchester CO4 3SQ, United Kingdom.

The Science of the total environment

|April 21, 2024

概括

石油和天然气平台通过释放毒素来伤害海洋生物. 这项研究表明,这些污染物简化了食物网,减少了生物多样性,并不成比例地影响了北海中较大的生物.

科学领域:

海洋生态海洋生态学
环境毒理学环境毒理学
生态风险评估生态风险评估

背景情况:

石油和天然气开采释放碳化合物和重金属到海洋沉积物中.
这些污染物对盆地社区和食物网产生负面影响.
了解这些影响对于环境管理至关重要.

研究的目的:

量化石油和天然气平台对北海盆地食物网的影响.
分析长期 (30年) 谷底层监测数据和饮食信息.
评估污染物水平与食物网结构之间的关系.

主要方法:

使用多重前后控制冲击 (BACI) 实验设计.
整合了30年的盆地监测数据与超过1400个种群的饮食信息.
与沉积物中碳化合物和重金属度相关的观测到的生态变化.

主要成果:

石油和天然气平台的污染导致食物网的复杂性,丰富性和生物多样性减少.
受污染的地点表现出较少的营养互动和增加的食物网连接,有利于通用主义物种.
在平台附近观察到平均体重的减少,食物链的缩短,以及小型破坏性动物 (例如,Capitella capitata) 的优势.
观察到的生态影响与超过OSPAR沉积物毒性指南的污染物水平有关.

结论:

石油和天然气开采大大降低了海洋盆地食物网.
污染导致简化,更连接的食物网由一般主义者主导和更大的生物体的损失.
这些发现为管理海上石油和天然气活动对环境的影响提供了关键证据.

关键词:

地社区 (Benthic Communities) 是一种地社区.污染污染污染污染人造结构是一个人造结构.海洋生态系统海洋生态系统海洋食物网是一个海洋食物网.北海北海是北海的海域.热带结构的结构是热带结构.

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