充足的营养摄入量可以减轻酸盐对 rotifer Brachionus calyciflorus 的有毒影响
Tao Chen1, Xiao-Ping Xu2,3, Jin-Cheng Li1
1College of Civil Engineering and Architecture, Anhui Polytechnic University, Wuhu, 241000, China.
Environmental science and pollution research international
|January 15, 2024
概括
作为消毒副产品的酸盐会伤害水生 (Brachionus calyciflorus). 更高的藻类食物密度可以减轻酸盐的作用.
科学领域:
- 环境毒理学环境毒理学
- 水生生态学 水生生态学
- 无脊椎动物动物学
背景情况:
- 酸盐是水生环境中常见的消毒副产品.
- 对无脊椎动物如Brachionus calyciflorus rotifers的酸盐的毒性数据有限.
- 了解酸盐对水生生态系统的影响至关重要.
研究的目的:
- 为了评估酸盐对 rotifer Brachionus calyciflorus 的长期毒性.
- 为了研究藻类密度对酸盐毒性的影响.
- 为了评估暴露于酸盐的鸟的食行为.
主要方法:
- 在暴露于不同酸盐度的Brachionus calyciflorus上进行了21天的毒性测试.
- 操纵了两个不同的藻类密度条件 (1.0 × 10^6 和 3.0 × 10^6 细胞/毫升).
- 监测人口密度,生长率和养/摄入率.
主要成果:
- 酸盐在100和200毫克/升的剂量下显著降低了鱼种群密度.
- 在酸盐暴露下,较高的藻类密度 (3.0 × 10^6 细胞/毫升) 与较低密度 (1.0 × 10^6 细胞/毫升) 相比,导致种群密度和生长率增加.
- 在藻类密度较高的地方,摄入率更高.
结论:
- 更高的粮食可用性可能会减轻酸盐对鸟的毒性影响.
- 藻类密度是影响水生无脊椎动物酸盐毒性的关键因素.
- 这项研究为评估酸盐的生态风险提供了必要的数据.
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