Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13546 |
Estuary-ocean connectivity: fast physics, slow biology | |
Raimonet, Melanie1,2,3; Cloern, James E.2 | |
2017-06-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Estuaries are connected to both land and ocean so their physical, chemical, and biological dynamics are influenced by climate patterns over watersheds and ocean basins. We explored climate-driven oceanic variability as a source of estuarine variability by comparing monthly time series of temperature and chlorophyll-a inside San Francisco Bay with those in adjacent shelf waters of the California Current System (CCS) that are strongly responsive to wind-driven upwelling. Monthly temperature fluctuations inside and outside the Bay were synchronous, but their correlations weakened with distance from the ocean. These results illustrate how variability of coastal water temperature (and associated properties such as nitrate and oxygen) propagates into estuaries through fast water exchanges that dissipate along the estuary. Unexpectedly, there was no correlation between monthly chlorophyll-a variability inside and outside the Bay. However, at the annual scale Bay chlorophyll-a was significantly correlated with the Spring Transition Index (STI) that sets biological production supporting fish recruitment in the CCS. Wind forcing of the CCS shifted in the late 1990s when the STI advanced 40 days. This shift was followed, with lags of 1-3 years, by 3- to 19-fold increased abundances of five ocean-produced demersal fish and crustaceans and 2.5-fold increase of summer chlorophyll-a in the Bay. These changes reflect a slow biological process of estuary-ocean connectivity operating through the immigration of fish and crustaceans that prey on bivalves, reduce their grazing pressure, and allow phytoplankton biomass to build. We identified clear signals of climate-mediated oceanic variability in this estuary and discovered that the response patterns vary with the process of connectivity and the timescale of ocean variability. This result has important implications for managing nutrient inputs to estuaries connected to upwelling systems, and for assessing their responses to changing patterns of upwelling timing and intensity as the planet continues to warm. |
英文关键词 | climate change crustaceans estuary estuary-ocean exchange fish nutrient management ocean climate phytoplankton temperature upwelling |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400445900019 |
WOS关键词 | DUNGENESS CRAB ; WILLAPA BAY ; ECOSYSTEM METABOLISM ; CANCER-MAGISTER ; CLIMATE-CHANGE ; COASTAL OCEAN ; SALDANHA BAY ; PHYTOPLANKTON ; VARIABILITY ; WASHINGTON |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/17388 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Brest, IFREMER, CNRS, LEMAR,IUEM,IRD, F-29280 Plouzane, France; 2.US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 3.UPMC Univ Paris 06, Sorbonne Univ, UMR 7619 METIS, CNRS,IPSL, F-75005 Paris, France |
推荐引用方式 GB/T 7714 | Raimonet, Melanie,Cloern, James E.. Estuary-ocean connectivity: fast physics, slow biology[J]. GLOBAL CHANGE BIOLOGY,2017,23(6). |
APA | Raimonet, Melanie,&Cloern, James E..(2017).Estuary-ocean connectivity: fast physics, slow biology.GLOBAL CHANGE BIOLOGY,23(6). |
MLA | Raimonet, Melanie,et al."Estuary-ocean connectivity: fast physics, slow biology".GLOBAL CHANGE BIOLOGY 23.6(2017). |
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