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在红树林食物网中生物积累和食物转移的甲酸

Jianan Liu¹, Yuyan Liu², Siwen Chen¹

¹College of Geography and Environmental Science, Hainan Normal University, Haikou 571158, Hainan, China.

Marine pollution bulletin

|August 30, 2025

概括

酸盐 (PAE) 在红树林中生物累积,在食肉鱼中含量更高. 一些PAE生物放大,而另一些则稀释,影响食品网络安全和生态系统健康.

科学领域:

环境科学
生态毒理学
海洋生物学

背景情况:

甲酸 (PAE) 是广泛存在的内分泌干扰物,在生态系统中积累.
在红树林的食物网中对PAE生物积累和食物转移的理解是有限的.

研究的目的:

评估在红树林生态系统中的PAE生物积累和食用转移.
确定影响水生生物中的PAE积累的关键因素.

主要方法:

使用MixSimmr模型进行稳定同位素追踪.
使用气体染色体质谱 (GC-MS) 进行PAE分析.
在自然环境条件下研究PAE动态.

主要成果:

在红树林生态系统中,,POM和SOM是主要的碳来源.
在水和沉积物中的水生生物中显著生物积累的二甲基酸盐 (DMP).
盆地肉食鱼类的PAE积累率高于草食鱼类.
八醇与水分的系数 (KOW) 影响了生物积累.
丁甲 (BBP) 和二甲甲 (DEHP) 显示出潜在的生物放大; DMP 和二甲甲 (DEP) 显示出食物稀释.
短链PAE通过皮肤/呼吸吸收;长链PAE通过摄入.

结论:

在红树林的食物网中,PAE的生物积累和食物转移有所不同.
这种行为对红树林生态系统的保护和水产品的安全有重大影响.
在这些生态系统中,KOW是PAE生物积累的关键因素.

关键词:

生物积累红树林的食物网甲酸热带转移

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