DOI: 10.1016/j.marpolbul.2013.11.030
Scopus记录号: 2-s2.0-84902084132
论文题名: Chronic light reduction reduces overall resilience to additional shading stress in the seagrass Halophila ovalis
作者: Yaakub S.M. ; Chen E. ; Bouma T.J. ; Erftemeijer P.L.A. ; Todd P.A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 83, 期: 2 起始页码: 467
结束页码: 474
语种: 英语
英文关键词: Acclimation
; Light history
; Sediment
; Singapore
; Turbidity
Scopus关键词: Contamination
; Marine pollution
; Sediments
; Turbidity
; Acclimation
; Additional stress
; Different lights
; Light reductions
; Photochemical efficiency
; Shading treatments
; Singapore
; Substantial capacity
; Plants (botany)
; acclimation
; ecosystem resilience
; environmental stress
; light quality
; seagrass
; shading
; turbidity
; acclimatization
; article
; chlorophyll content
; controlled study
; ecosystem resilience
; habitat selection
; Halophila ovalis
; hydrodynamics
; light
; mortality
; nonhuman
; photochemistry
; plant leaf
; plant shading
; plant stress
; seagrass
; sediment
; shoot
; Singapore
; temperature measurement
; turbidity
; environment
; Hydrocharitaceae
; photosynthesis
; physiology
; radiation response
; Singapore [Southeast Asia]
; Halophila ovalis
; Acclimatization
; Environment
; Hydrocharitaceae
; Light
; Photosynthesis
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Seagrasses have substantial capacity to survive long periods of light reduction, but how acclimation to chronic low light environments may influence their ability to cope with additional stress is poorly understood. This study examines the effect of temporal light reduction by adding two levels of shading to Halophila ovalis plants in two meadows with different light histories, one characterized by a low light (turbid) environment and the other by a relatively high light (clear) environment. Additional shading resulted in complete mortality for both shading treatments at the turbid site while the clear site showed a pattern of decreased shoot density and increased photochemical efficiency (Fv/. Fm) with increased shading. These contrasting results for the same species in two different locations indicate that acclimation to chronic low light regimes can affect seagrass resilience and highlights the importance of light history in determining the outcome of exposure to further (short-term) stress. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85452
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Blk S2 #02-02, SG 117557, Singapore; Singapore-Delft Water Alliance, National University of Singapore, Blk E1 Engineering Drive 2, #08-25, SG 117567, Singapore; Royal Netherlands Institute for Sea Research (NIOZ), Korringaweg 7, 4401 NT Yerseke, Netherlands; The UWA Oceans Institute, University of Western Australia, 35 Stirling Highway, 6009 Crawley, WA, Australia; Sinclair Knight Merz (SKM), P.O. Box H615, Perth, WA 6000, Australia
Recommended Citation:
Yaakub S.M.,Chen E.,Bouma T.J.,et al. Chronic light reduction reduces overall resilience to additional shading stress in the seagrass Halophila ovalis[J]. Marine Pollution Bulletin,2014-01-01,83(2)