世界各地金枪鱼和鱼的基本和非基本元素:分布模式和影响因素
Jingqian Xie1, Qiang Wu1, Ling Tao1
1College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China.
Marine pollution bulletin
|October 5, 2023
概括
鱼和鱼肝脏中的必需和非必需元素在全球范围内表现出类似的模式. 鱼类类别显著影响元素分布,具体元素与大小,饮食和地区有关.
科学领域:
- 海洋生物学 海洋生物学
- 环境化学环境化学
- 生态毒理学 生态毒理学
背景情况:
- 鱼和鱼是全球分布的海洋捕食者.
- 这些物种依赖于生存的基本和非基本元素.
- 了解元素积累对于评估生态系统健康至关重要.
研究的目的:
- 综合评估金枪鱼和鱼肝脏中的基本和非基本元素.
- 识别影响元素分布模式的因素.
- 为了确定这些鱼类的特征指标元素.
主要方法:
- 对来自全球海洋的金枪鱼和鱼肝脏组织中必需和非必需元素的分析.
- 基于物理化学性质的统计分析来识别元素集群.
- 模式分析以根据地理区域和鱼类类别分组样本.
主要成果:
- 在这两种鱼类中,基本元素比非基本元素高出1-3个数量级.
- 根据元素的属性确定了四个不同的元素集群.
- 元素分布显示了四个与地区和类别相关的样本组.
- 确定了9个元素作为特征指标,其中鱼类类别是最重要的因素.
结论:
- 鱼类是金枪鱼和鱼肝脏元素积累的主要驱动因素.
- 特定元素 (Hg,Fe,Tl,Co,Se,Ni,Mg,Mn,As) 受到人体大小,热量水平,食习惯,采样区域和当地初级生产等因素的影响.
- 这项研究为顶级海洋捕食者的元素生物地质化学提供了宝贵的见解.
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