SGER: Rapid Response Request: Evaluating ENSO Impacts on Rocky Intertidal Assemblages

SGER：快速响应请求：评估 ENSO 对岩石潮间带组合的影响

• 批准号: 9221776
• 负责人: Robert Paine
• 金额: $ 1.97万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-15 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221776&HistoricalAwards=false
• 关键词: SGER; Rapid; Response; Request; Evaluating

El Nino (ENSO) events occur periodically and vary greatly in both intensity and spatial magnitude. ENSOs are characterized by local increases in water temperature, sea level elevation and reduce water column nutrients. Despite these biologically significant features, and especially considering their influence on pelagic assemblages and coral reef ecosystems, the impact of ENSOs on mid- to high-latitude, nearshore benthic assemblages remains ambiguous. The rocky intertidal assemblage characteristic of the exposed coast of Washington State has been experiencing ENSO conditions since at least January 1992. Dr. Paine will examine how changes in nutrients availability effect algal productivity, recruitment and growth. A relative new technique will be employed using terra cotta flower pots. In a balanced, replicated design, some pots will be filled with nutrient-rich materials, some protected from benthic grazers by anti-fouling paint and others left untreated. Comparison between treatments should allow a statistical analysis of the influences of terrestrial inputs, nutrients and grazers on algal productivity. Repetition in a non-ENSO year will identify the possible contribution of water column recruitment of three kelp species.

厄尔尼诺（ENSO）事件周期性发生，并且在两个方面变化很大。 强度和空间大小。 ENSO的特点是， 水温升高，海平面上升， 水柱营养物 尽管这些生物学意义重大 特别是考虑到其对海洋水层的影响， 生态系统的影响，厄尔尼诺/南方涛动对中期 高纬度近岸底栖生物组合仍不明确。 裸露海岸特有的岩石潮间带组合 华盛顿州自2000年以来一直在经历ENSO条件， 1992年1月。 潘恩博士将研究 营养物的可利用性影响藻类生产力、补充和 增长 一个相对较新的技术将使用terra 陶制花盆 在一个平衡的，复制的设计，一些锅 将充满营养丰富的材料，一些保护， 底栖食草动物被防污涂料和其他未经处理。 治疗之间的比较应允许进行统计分析 陆地输入物、营养物和食草动物对 藻类生产力 在非厄尔尼诺/南方涛动年份重复将确定 三种海带水柱补充可能贡献 物种