DOI: 10.1002/2017JC013279
Scopus记录号: 2-s2.0-85041284010
论文题名: Light Absorption by Suspended Particles in the Red Sea: Effect of Phytoplankton Community Size Structure and Pigment Composition
作者: Kheireddine M. ; Ouhssain M. ; Organelli E. ; Bricaud A. ; Jones B.H.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 2 起始页码: 902
结束页码: 921
语种: 英语
英文关键词: phytoplankton absorption
; phytoplankton size
; pigment composition
; Red Sea
Scopus关键词: absorption
; biochemical composition
; chlorophyll a
; community structure
; ocean color
; open ocean
; parameterization
; phytoplankton
; pigment
; size structure
; surface layer
; suspended load
; Indian Ocean
; Red Sea [Indian Ocean]
英文摘要: The light absorption properties of phytoplankton (aph(λ)) and nonalgal particles (anap(λ)) associated with phytoplankton pigments were analyzed across the Red Sea, in the upper 200 m depth, between October 2014 and August 2016. The contribution by nonalgal particles to the total particulate light absorption (aph(λ) + anap(λ)) was highly variable (23 ± 17% at 440 nm) and no relationship between anap(440) and chlorophyll a concentration, [TChl a], was observed. Phytoplankton-specific phytoplankton absorption coefficients at 440 and 676 nm for a given [TChl a], aph*(440), and a* ph (676) were slightly higher than those derived from average relationships for open ocean waters within the surface layer as well as along the water column. Variations in the concentration of photosynthetic and photoprotective pigments were noticeable by changes in phytoplankton community size structure as well as in a* ph(λ). This study revealed that a higher proportion of picophytoplankton and an increase in photoprotective pigments (mainly driven by zeaxanthin) tended to be responsible for the higher a* ph(λ) values found in the Red Sea as compared to other oligotrophic regions with similar [TChl a]. Understanding this variability across the Red Sea may help improve the accuracy of biogeochemical parameters, such as [TChl a], derived from in situ measurements and ocean color remote sensing at a regional scale. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114569
Appears in Collections: 气候减缓与适应
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作者单位: Biological and Environmental Sciences and Engineering Division, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia; Sorbonne Universités, UPMC Univ Paris 06, UMR 7093, LOV, Observatoire Océanologique, Villefranche-Sur-Mer, France; CNRS, UMR 7093, LOV, Observatoire Océanologique, Villefranche-Sur-Mer, France; Plymouth Marine Laboratory, Plymouth, United Kingdom
Recommended Citation:
Kheireddine M.,Ouhssain M.,Organelli E.,et al. Light Absorption by Suspended Particles in the Red Sea: Effect of Phytoplankton Community Size Structure and Pigment Composition[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(2)