Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088039 |
Krill Hotspot Formation and Phenology in the California Current Ecosystem | |
Fiechter, Jerome1; Santora, Jarrod A.2,3; Chavez, Francisco4; Northcott, Devon4,5; Messie, Monique4 | |
2020-06-09 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In the California Current Ecosystem, krill represent a key link between primary production and higher trophic level species owing to their central position in the food web and tendency to form dense aggregations. However, the strongly advective circulation associated with coastal upwelling may decouple the timing, occurrence, and persistence of krill hotspots from phytoplankton biomass and nutrient sources. Results from a coupled physical-biological model provide insights into fundamental mechanisms controlling the phenology of krill hotspots in the California Current Ecosystem, and their sensitivity to alongshore changes in coastal upwelling intensity. The simulation indicates that dynamics controlling krill hotspot formation, intensity, and persistence on seasonal and interannual timescales are strongly heterogeneous and related to alongshore variations in upwelling-favorable winds, primary production, and ocean currents. Furthermore, regions promoting persistent krill hotspot formation coincide with increased observed abundance of top predators, indicating that the model resolves important ecosystem complexity and function. |
英文关键词 | California Current ecosystem hotspots coastal upwelling krill biophysical model top predators |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551465400045 |
WOS关键词 | OCEAN CONDITIONS ; MODELING SYSTEM ; VARIABILITY ; CLIMATE ; CIRCULATION ; VARIANCE ; SECTORS ; SURFACE ; WHALES ; WIND |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/274368 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Santa Cruz, Ocean Sci Dept, Santa Cruz, CA 95064 USA; 2.NOAA, Fisheries Ecol Div, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Santa Cruz, CA USA; 3.Univ Calif Santa Cruz, Dept Appl Math, Santa Cruz, CA 95064 USA; 4.Monterey Bay Aquarium Res Inst, Moss Landing, CA USA; 5.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA |
推荐引用方式 GB/T 7714 | Fiechter, Jerome,Santora, Jarrod A.,Chavez, Francisco,et al. Krill Hotspot Formation and Phenology in the California Current Ecosystem[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13). |
APA | Fiechter, Jerome,Santora, Jarrod A.,Chavez, Francisco,Northcott, Devon,&Messie, Monique.(2020).Krill Hotspot Formation and Phenology in the California Current Ecosystem.GEOPHYSICAL RESEARCH LETTERS,47(13). |
MLA | Fiechter, Jerome,et al."Krill Hotspot Formation and Phenology in the California Current Ecosystem".GEOPHYSICAL RESEARCH LETTERS 47.13(2020). |
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