DOI: 10.1016/j.marpolbul.2017.05.060
Scopus记录号: 2-s2.0-85020705513
论文题名: Response of the seagrass Halophila ovalis to altered light quality in a simulated dredge plume
作者: Strydom S. ; McMahon K. ; Lavery P.S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 121, 期: 2018-01-02 起始页码: 323
结束页码: 330
语种: 英语
英文关键词: Dredging
; Light quality
; Light quantity
; Seagrass
Scopus关键词: Contamination
; Dredging
; Marine pollution
; Dredge plumes
; Dredging operations
; Dredging projects
; Light quality
; Photosynthetic photon flux densities
; Seagrass meadows
; Seagrasses
; Spectral quality
; Plants (botany)
; antheraxanthin
; carotene
; chlorophyll a
; chlorophyll b
; neoaxanthin
; pigment
; unclassified drug
; violaxanthin
; anthropogenic effect
; dredging
; growth response
; light effect
; light quality
; quantitative analysis
; seagrass
; seagrass meadow
; Article
; controlled study
; dredging
; environmental impact
; Halophila ovalis
; light exposure
; light quality
; nonhuman
; photosynthetic photon flux density
; physical sensitivity
; plant growth
; plant structures
; population productivity
; seagrass
; simulation
; Hydrocharitaceae
; light
; photosynthesis
; sediment
; Halophila ovalis
; Geologic Sediments
; 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: Seagrass meadows are globally threatened, largely through activities that reduce light quantity (photosynthetic photon flux density) such as dredging. However, these activities can simultaneously alter the spectral quality of light. Previous studies showed that Halophila ovalis seagrass productivity is reduced under monochromatic yellow/green light, wavelengths associated with dredge plumes, but it is unclear how they respond to spectra produced by real dredging projects. We simultaneously subjected adult H. ovalis plants to altered light quality and quantity simulating a real commercial dredging operation (15 mg L− 1 TSS, 50 and 200 μmol photons m− 2 s− 1). There was a significant effect of reduced light quantity on physiological and morphological variables and a significant effect of light quality on the pigment antheraxanthin. The lack of effect of light quality on growth indicates that while seagrass are sensitive to changes in light quality, natural- and anthropogenic-driven changes may not always be sufficient to produce strong effects on H. ovalis. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88046
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: Centre for Marine Ecosystems Research and School of Science, Edith Cowan University, 270 Joondalup Dr, Joondalup, WA, Australia; Western Australian Marine Science Institution, M095, The University of Western Australia, Crawley, WA, Australia; Centro de Estudios Avanzados de Blanes, Consejo Superior de Investigaciones Científicas, Blanes, Spain
Recommended Citation:
Strydom S.,McMahon K.,Lavery P.S.. Response of the seagrass Halophila ovalis to altered light quality in a simulated dredge plume[J]. Marine Pollution Bulletin,2017-01-01,121(2018-01-02)