在复杂的河口生态系统中,多种压力因素对孟买子哈帕登尼雷斯种群的相互作用
Zhaopeng Zhang1, Cui Liang2, Lei Zheng1
1CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.
The Science of the total environment
|September 11, 2024
概括
海洋生态系统面临多种压力因素. 这项研究量化了渔业压力,太平洋十年振荡,下水和沉积物负载之间的相互作用,揭示了对Harpadon nehereus种群的协同效应.
科学领域:
- 海洋生态海洋生态学
- 环境科学 环境科学
- 渔业 科学 渔业 科学
背景情况:
- 海洋生态系统越来越多地受到多种相互作用的人为压力因素的影响.
- 量化这些压力因素相互作用及其生物学后果仍然是一个重要的知识差距.
研究的目的:
- 在河口生态系统中检测和检查五个关键外源性压力因素之间的因果关系.
- 用贝叶斯等级空间时间模型量化评估多重压力因素对哈尔帕登海底群体动态的影响.
主要方法:
- 贝叶斯阶层空间时间建模框架.
- 分析了渔业压力 (FP),太平洋十年振荡指数 (PDO),排水量 (RV) 和沉积物负载 (SL) 之间的相互作用.
- 气候变化速度 (VoCC) 的影响评估.
主要成果:
- 在FP,PDO,RV和SL之间发现了显著的协同作用,影响H. nehereus生物量.
- SL*PDO和RV*PDO相互作用显示出积极的协同效应,对H. nehereus产生不同的影响.
- 渔业压力 (FP) 构成了最大的威胁,特别是在高沉积物负载或负 PDO 阶段的情况下.
结论:
- 多重压力因素的相互作用对海洋种群产生重大影响,需要综合管理策略.
- 为了有效地保护H. nehereus,渔业管理应考虑沉积物负载和原产地保护等环境因素.
- 气候变化的速度虽然没有相互作用,但显著影响着人口动态,强调需要更广泛的气候考虑.
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