在巨藻Ulva spp.中碳稳定同位素的高可变性. 和对优化致死指标的影响
1University of Maryland Center for Environmental Science. Horn Point Laboratory, 2020 Horns Point Road, 21613, Cambridge, MD, USA. jlloret@umces.edu.
Scientific reports
|November 19, 2025
概括
绿色潮是由Ulva spp.引起的 显示可变的碳 (δ13C) 签名,表明不同的生长模式. 乌尔瓦 δ13C值可以评估沿海水的营养状况.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 生物地质化学生物地质化学
背景情况:
- 乌尔瓦种类. 乌尔瓦种类. 它们是全球绿色潮事件的共同宏观藻类.
- 这种属在碳代谢中表现出显著的可塑性,使其能够适应营养的波动和开花条件.
研究的目的:
- 研究Ulva spp.中碳同位素组成 (δ13C) 的变异性.
- 确定影响Ulva δ13C特征的独特生长模式和环境驱动因素.
主要方法:
- 编制了Ulva δ13C值的1382个已发表和调查的观测结果.
- 分析了环境驱动因素,特别是在新英格兰的肥沃河口.
主要成果:
- 观察到Ulva δ13C值的异常广泛的双模分布,表明有两种生长模式.
- 丰富的 δ13C 值与密集的宏藻外层中的营养限制条件相关.
- 过多的营养投入导致大藻类繁殖,改变环境条件和同位素特征.
结论:
- 乌尔瓦 δ13C的特征反映了对营养的可用性和生长条件的独特生理反应.
- 乌尔瓦 δ13C 是评估沿海生态系统热带状况的有价值指标.
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