DOI: 10.1016/j.marenvres.2020.104926
论文题名: Variation in phytoplankton community and its implication to dimethylsulphide production at a coastal station off Goa, India
作者: Naik B.R. ; Gauns M. ; Bepari K. ; Uskaikar H. ; Shenoy D.M.
刊名: Marine Environmental Research
ISSN: 1411136
出版年: 2020
卷: 157 语种: 英语
英文关键词: Arabian sea
; DMS
; DMSP
; Hypoxic
; Macroalgae
; Phytoplankton
Scopus关键词: Alkylation
; Climate change
; Oxygen
; Storm sewers
; Arabian sea
; DMSP
; Global climate changes
; Hypoxic
; Laboratory experiments
; Macro-algae
; Northern indian oceans
; Phytoplankton community
; Phytoplankton
; climate change
; community dynamics
; community response
; global change
; macroalga
; phytoplankton
; seaweed
; time series analysis
; Arabian Sea
; Goa
; India
; Indian Ocean
; algae
; Bacillariophyta
; Sargassum
英文摘要: Seasonal hypoxia/suboxia (at times anoxia) towards the end of Southwest monsoon (SWM; June to September) at the coastal time series site off Goa, West coast of India was found to influence the dynamics of phytoplankton biomass, community structure and production of climatically active gas, dimethylsulphide (DMS). In this diatom dominated study region, high DMS production in the subsurface waters during late SWM might possible be attributed to the stress experienced by micro- and macro-algae from the prevailing low oxygen subsurface waters through different pathways specifically believed to be via methylation pathway (see Schafer et al., 2010). Based on laboratory experiments, we hypothesize presence of floating seaweeds mostly Sargassum species washed from the shore to the study site to contribute sizably to DMS production in the water column as they sink and degrade during the senescence phase. However, we are yet to address its loss/emission processes across the oxic-hypoxic boundary of seasonal (and permanent) oxygen minimum zone of the northern Indian Ocean, which is important from the viewpoint of global climate change. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158246
Appears in Collections: 气候变化与战略
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作者单位: CSIR-National Institute of Oceanography, Dona PaulaGoa, India; School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao PlateauGoa, India; Centre for Marine Living Resources and Ecology, Kochi, Kerala, India
Recommended Citation:
Naik B.R.,Gauns M.,Bepari K.,et al. Variation in phytoplankton community and its implication to dimethylsulphide production at a coastal station off Goa, India[J]. Marine Environmental Research,2020-01-01,157