探索鱼和海藻之间的经典热带级联对动物浮游生物和鱼的间接影响
Lisa Hildebrand1, Solène Derville2,3, Ines Hildebrand2
1Geospatial Ecology of Marine Megafauna Laboratory, Department of Fisheries, Wildlife & Conservation Sciences, Marine Mammal Institute, Oregon State University, Newport, OR, USA. lisa.hildebrand@oregonstate.edu.
Scientific reports
|April 29, 2024
概括
紫色海对海藻森林产生负面影响,减少动物浮游生物和灰捕食. 这项研究揭示了海藻森林热带级联对海洋食物网的间接影响.
科学领域:
- 海洋生态海洋生态学
- 热量级布 (Trophic Cascades) 是一种热量级布.
- 树林生态系统的生态系统
背景情况:
- 树林的热带级流已经得到了很好的研究,但对动物浮游生物和灰的间接影响仍然不清楚.
- 了解这些间接影响对于全面的生态系统管理至关重要.
研究的目的:
- 为了研究涉及牛海藻,紫色海,动物浮游生物和灰色鱼的热带级联的相关模式.
- 评估海藻森林动态对动物浮游生物猎物基地和灰捕食行为的间接影响.
主要方法:
- 利用通用添加模型 (GAMs) 来分析8年的时间动态.
- 雇佣GAM来检查连接海藻,,动物浮游生物和灰色鱼的潜在的食用途径.
- 相关的物种丰度和食时间数据.
主要成果:
- 紫色海覆盖面的增加与海藻状况的下降,动物浮游生物的丰富性和灰捕食时间的下降有关.
- 发现海藻和鱼之间存在负相关性;海藻和动物浮游生物之间存在正相关性.
- 灰与动物浮游生物的特定相关性以及与海藻状况的积极相关性.
结论:
- 鱼鱼的热带级流对动物浮游生物的猎物基础产生负面影响,影响灰的食.
- 鱼森林在多种食物层中发挥着至关重要的作用,影响物种间联系和海洋食物网的稳定性.
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